WPF - Custom Tooltip in WPF

Custom Tooltip

In WPF Tooltip property can a host any control like textblock,grid,panel etc.In other words, we can display another window with any number of controls as a tooltip of a control.

Lets create a custom tooltip in wpf

Step 1
Create a WPF application.

Step 2
Add a Button Control on Window,it is look like this

<Grid >
      <Button Margin="12,12,0,0" Name="button1" Height="23" VerticalAlignment="Top" HorizontalAlignment="Left" Width="76">About Me
      </Button>
</Grid>

Step 3

Inside the button control add a tooltip property,it is look like this

<Button Margin="12,12,0,0" Name="button1" Height="23" VerticalAlignment="Top" HorizontalAlignment="Left" Width="76">About Me
       
            <Button.ToolTip>

            </Button.ToolTip>
           
</Button>

Step 4
Inside a tooltip property add the contents like any controls like you want.it is look like this 

<Button.ToolTip>
                <Grid Background="DimGray" Width="400">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="50*" />
                        <RowDefinition Height="93*" />
                        <RowDefinition Height="169*" />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="88*" />
                        <ColumnDefinition Width="190*" />
                    </Grid.ColumnDefinitions>

                    <Label Name="lblHeading" Grid.Column="0" Grid.ColumnSpan="2" Background="Brown" Foreground="white" FontSize="30" >About Me</Label>

                    <Image Name="img" Grid.Row="1" Grid.Column="0" Source="C:\Users\Kishor\Desktop\kishor.png" Stretch="Fill" />

                    <TextBlock Name="txtBAboutME" Padding="10" Grid.Column="1" 
         Grid.Row="1" Grid.RowSpan="2" TextWrapping="Wrap" TextAlignment="Left"
         HorizontalAlignment="Right" VerticalAlignment="Top" Foreground="White">
         My name is kishor naik. I am a freelancer dot net developer.I have a 2+ years experience in .net technology. 
         I have completed my BCA in 2009 with first class with distinction.My aiming to spread good information about developing software, usually on the Microsoft technologies.
         I have been mainly working on window based application and web based application.
                    </TextBlock>
                </Grid>
            </Button.ToolTip> 

Full XAML Code

<Window x:Class="SolWpfCustomTooltip.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Custom Tooltip" Height="300" Width="300" Background="Black">
    
    <Grid >
        <Button Margin="12,12,0,0" Name="button1" Height="23" VerticalAlignment="Top" HorizontalAlignment="Left" Width="76">About Me
        
            <Button.ToolTip>
                <Grid Background="DimGray" Width="400">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="50*" />
                        <RowDefinition Height="93*" />
                        <RowDefinition Height="169*" />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="88*" />
                        <ColumnDefinition Width="190*" />
                    </Grid.ColumnDefinitions>

                    <Label Name="lblHeading" Grid.Column="0" Grid.ColumnSpan="2" Background="Brown" Foreground="white" FontSize="30" >About Me</Label>

                    <Image Name="img" Grid.Row="1" Grid.Column="0" Source="C:\Users\Kishor\Desktop\kishor.png" Stretch="Fill" />

                    <TextBlock Name="txtBAboutME" Padding="10" Grid.Column="1" 
         Grid.Row="1" Grid.RowSpan="2" TextWrapping="Wrap" TextAlignment="Left"
         HorizontalAlignment="Right" VerticalAlignment="Top" Foreground="White">
         My name is kishor naik. I am a freelancer dot net developer.I have a 2+ years experience in .net technology. 
         I have completed my BCA in 2009 with first class with distinction.My aiming to spread good information about developing software, usually on the Microsoft technologies.
         I have been mainly working on window based application and web based application.
                    </TextBlock>
                </Grid>
            </Button.ToolTip> 
            
        </Button>
    </Grid>
</Window>

Output
Move the mouser cursor pointer to the button control

Download
Download Source Code

LINQ - Linq To Object Part 1

Linq to Objects

This provides the ability to query IEnumerable-based information sources which include arrays, collections, list of objects.

Example on Simple Select Query

Step 1
Create a Web Project.

Step 2
Create a Student Class in App_Code Folder,it is look like this

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

/// <summary>
/// This is Student class for Storeing Data
/// </summary>
public class Student
{
    #region Property

    public int StudentID
    {
        get;
        set;
    }

    public String FirstName
    {
        get;
        set;
    }

    public String LastName
    {
        get;
        set;
    }

    #endregion
}

Step 3
In default class [default.aspx.cs] write a method for store the student data which return Student list Object.it is look like this

 /// <summary>
    /// Add the Student Data and Store data in list
    /// </summary>
    /// <returns>List</returns>
    private List<Student> AddData()
    {
        try
        {
            List<Student> ListObj = new List<Student>();

            Student Std1 = new Student();
            Std1.StudentID = 1;
            Std1.FirstName = "kishor";
            Std1.LastName = "Naik";


            Student Std2 = new Student();
            Std2.StudentID = 2;
            Std2.FirstName = "kedar";
            Std2.LastName = "deshpande";


            Student Std3 = new Student();
            Std3.StudentID = 3;
            Std3.FirstName = "avinash";
            Std3.LastName = "k";


            Student Std4 = new Student();
            Std4.StudentID = 4;
            Std4.FirstName = "sanket";
            Std4.LastName = "C";


            Student Std5 = new Student();
            Std5.StudentID = 5;
            Std5.FirstName = "Ramdas";
            Std5.LastName = "B";

            Student Std6 = new Student();
            Std6.StudentID = 6;
            Std6.FirstName = "bhavesh";
            Std6.LastName = "pisat";

            ListObj.Add(Std1);
            ListObj.Add(Std2);
            ListObj.Add(Std3);
            ListObj.Add(Std4);
            ListObj.Add(Std5);
            ListObj.Add(Std6);

            return ListObj;
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }
    }

Step 4
Create a LinqToObject static class in App_code folder,it is look like this

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Collections.Generic;
using System.Collections;

/// <summary>
/// Summary description for LinqToObject
/// </summary>
public static class LinqToObject
{
    #region Methods
    /// <summary>
    /// Simple Select Query
    /// </summary>
    /// <param name="ListObj">Specify Student List Object</param>
    /// <returns>List</returns>
    public static List<Student> GetStudentData(List<Student> ListObj)
    {
        try
        {
            var Query = (from Q in ListObj
                         select Q).ToList<Student>();

            return Query; 
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message); 
        }
    }

    /// <summary>
    /// Display Individual filds
    /// </summary>
    /// <param name="ListObj">Specify Student List Object</param>
    /// <returns>Ilist</returns>
    public static IList GetStudentDataSELECTED(List<Student> ListObj)
    {
        try
        {
            var Query = from Q in ListObj
                        select new
                        {
                            Q.FirstName,
                            Q.LastName
                        };

            return Query.ToList();  
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }
    }

    #endregion
}

In the above query from operator used like foreach keyword,select is used as projection operator to select the fields from the List Object. These are called Standard Query Operators.

First Method - List<Student> GetStudentData(List<Student> ListObj)

List<Student> which references to collection of objects of an anonymous type which is type equivalent to Student type,Because the Select operator projecting the complete Student object itself.

Second Method - IList GetStudentDataSELECTED(List<Student> ListObj)

In the above query, the variable Query is the type of Ilist references to objects of an anonymous type which contains string FirstName, string LastName as part of the type definition. Because the Select operator projecting only,FirstName, LastName fields of Student object. These two fields are represented as string fields because both are declared as strings as part of the Student type definition. Here we are explicitly using the new keyword to dynamically create an anonymous type. This is mandatory because the select operator is projecting a new type definition.

Step 5
In default class [default.aspx.cs] write a method for binding data to the gridview,it is look like this

.aspx Code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="GvStudent" runat="server">
        </asp:GridView>
    </div>
    </form>
</body>
</html>

Code - Behind

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Collections.Generic;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            if (IsPostBack == false)
            {
                BindGridView(); 
            }

        }
        catch (Exception)
        { 
        }
    }

    #region Methods

    /// <summary>
    /// Add the Student Data and Store data in list
    /// </summary>
    /// <returns>List</returns>
    private List<Student> AddData()
    {
        try
        {
            List<Student> ListObj = new List<Student>();

            Student Std1 = new Student();
            Std1.StudentID = 1;
            Std1.FirstName = "kishor";
            Std1.LastName = "Naik";


            Student Std2 = new Student();
            Std2.StudentID = 2;
            Std2.FirstName = "kedar";
            Std2.LastName = "deshpande";


            Student Std3 = new Student();
            Std3.StudentID = 3;
            Std3.FirstName = "avinash";
            Std3.LastName = "k";


            Student Std4 = new Student();
            Std4.StudentID = 4;
            Std4.FirstName = "sanket";
            Std4.LastName = "C";


            Student Std5 = new Student();
            Std5.StudentID = 5;
            Std5.FirstName = "Ramdas";
            Std5.LastName = "B";

            Student Std6 = new Student();
            Std6.StudentID = 6;
            Std6.FirstName = "bhavesh";
            Std6.LastName = "pisat";

            ListObj.Add(Std1);
            ListObj.Add(Std2);
            ListObj.Add(Std3);
            ListObj.Add(Std4);
            ListObj.Add(Std5);
            ListObj.Add(Std6);

            return ListObj;
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }
    }

    /// <summary>
    /// Bind The Data GridView
    /// </summary>
    private void BindGridView()
    {
        try
        {
            //// Simple Select Query

            //GvStudent.DataSource = LinqToObject.GetStudentData(AddData());
            //GvStudent.DataBind();  


            //// Display Selected Filds
            GvStudent.DataSource = LinqToObject.GetStudentDataSELECTED(AddData());
            GvStudent.DataBind();  

        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message); 
        }
    }
    #endregion
}

Run the Project

Note - This above example is continue for next linq to object artical.

 Linq to Object Part 2

C#.net - Nullable Type

Nullable Type

.NET 2.0 introduced Nullable value types. As you surely know by now, you cannot set a value type to null.

int val = null; //this statement give error because it cannot convert to int because it is a non-nullable value type

This can be easily solved by transforming val into a Nullable type:

Nullable<int> val = null;

Or you can apply the ? suffix to the variable type:

int? val = null;

How can we check if our nullable value type contains data?

if (val.HasValue)
{
    System.Console.WriteLine("System.Nullable<T> Object have a value");

     // get the value from a nullable object

     System.Console.WriteLine("Value : " + val.Value);
}
else
{
     System.Console.WriteLine("System.Nullable<T> Object dose not have a value");   
}

Full Example on Nullable Type

Step 1
Create a Console application

Step 2
Add the following code snippet on console application,it is look like this

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace NullableType
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                int? val = 11;

                // Check the System.Nullable<T> object have a value or not
                if (val.HasValue)
                {
                    System.Console.WriteLine("System.Nullable<T> Object have a value");

                    // get the value from a nullable object

                    System.Console.WriteLine("Value : " + val.Value);
                }
                else
                {
                    System.Console.WriteLine("System.Nullable<T> Object dose not have a value");   
                }
            }
            catch (Exception ex)
            {
                System.Console.WriteLine(ex.Message);    
            }
        }
    }
}

Run the Project

Download
Download Source Code

Asp.net - Send email from gmail by using Asp.net

You can use gmail account to send email from asp.net.This is not straight forward like a simple SMTP email.

Let see how to send email from gmail by using asp.net

Step 1

Create a web Project.

Step 2
Create a following static class on app_code folder.This is following class used for the sending email from gmail account.

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Web.Mail;

/// <summary>
/// Send Mail from Gamil Account from ASP.net
/// </summary>
public static class GMail
{
    public static Boolean SendGMail(
        String GmailMailID,
        String GmailPassword,
        String To,
        String Subject,
        String Body,
        System.Web.Mail.MailFormat Format,
        String AttachmentPath)
    {
        Boolean Flag = false; 
        try
        {
            System.Web.Mail.MailMessage MyGMail = new System.Web.Mail.MailMessage();
            MyGMail.Fields.Add
                ("http://schemas.microsoft.com/cdo/configuration/smtpserver",
                              "smtp.gmail.com");
            MyGMail.Fields.Add
                ("http://schemas.microsoft.com/cdo/configuration/smtpserverport",
                              "465");
            MyGMail.Fields.Add
                ("http://schemas.microsoft.com/cdo/configuration/sendusing",
                              "2");
           
            MyGMail.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
           
            MyGMail.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/sendusername",
                GmailMailID);
            MyGMail.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/sendpassword",
                 GmailPassword);
            MyGMail.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/smtpusessl",
                 "true");

            MyGMail.From = GmailMailID;
            MyGMail.To = To;
            MyGMail.Subject = Subject;
            MyGMail.BodyFormat = Format;
            MyGMail.Body = Body; 

            if (AttachmentPath.Trim() != String.Empty)
            {
                MailAttachment MAttachment = new MailAttachment(AttachmentPath);
                MyGMail.Attachments.Add(MAttachment);
                MyGMail.Priority = System.Web.Mail.MailPriority.High;
            }

            System.Web.Mail.SmtpMail.SmtpServer = "smtp.gmail.com:465";
            System.Web.Mail.SmtpMail.Send(MyGMail);

            Flag = true; 
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);  
        }

        return Flag; 
    }
}

Step 3

Create a form on .aspx page.it is look like this

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div align="center">
    <h2> Send Mail</h2>
    <table>
    <tr>
    <td style="text-align: right">Gmail Id : </td><td style="text-align: left"><asp:TextBox ID="txtGmailId" runat="server" Width="200px"></asp:TextBox></td>
    </tr>
    <tr>
    <td style="text-align: right">Password : </td><td style="text-align: left"><asp:TextBox ID="txtPassword" TextMode="Password" runat="server" Width="200px"></asp:TextBox></td>
    </tr>
    <tr>
    <td style="text-align: right">To : </td><td style="text-align: left"><asp:TextBox ID="txtTo" runat="server" Width="200px"></asp:TextBox></td>
    </tr>
    <tr>
    <td style="text-align: right">Subject : </td><td style="text-align: left"><asp:TextBox ID="txtSubject" runat="server" Width="200px"></asp:TextBox></td>
    </tr>
    <tr>
    <td style="text-align: right;vertical-align:top;">Message : </td><td><asp:TextBox  ID="txtBody" 
                        runat="server" TextMode="MultiLine" Height="100px" Width="300px"></asp:TextBox></td>
    </tr>
    <tr>
    <td></td>
    <td align="center">
        <asp:Button ID="btnSend" runat="server" Text="Send" OnClick="btnSend_Click" Width="100px" /></td>
    </tr>
    </table>
        <asp:Label ID="lblError" ForeColor="red" runat="server" Text=""></asp:Label>
    </div>
    </form>
</body>
</html>

Step 4

Call SendGMail function on sendbutton click event,it is look like this

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Net.Mail;
using System.Net;
using System.Xml;

public partial class _Default : System.Web.UI.Page 
{
    protected void btnSend_Click(object sender, EventArgs e)
    {
        try
        {
            GMail.SendGMail(txtGmailId.Text.Trim() + "@gmail.com", txtPassword.Text.Trim(), txtTo.Text.Trim(), txtSubject.Text.Trim(),txtBody.Text.Trim(),System.Web.Mail.MailFormat.Text,String.Empty);
            lblError.Text = "Mail sent successfully";  
        }
        catch (Exception ex)
        {
            lblError.Text = ex.Message;   
        }
    }
}

Note: If you do not want to attach a file with email, specify blank string as String.Empty. 

Run the Project.

Download
Download Source Code

LINQ - What is LINQ

What is LINQ?

LINQ (Language Integrated Query) is the most important new feature of C# 3.0 and .NET 3.5.
LINQ integrated query syntax inside the C# programming language and makes it is possible to access diffferent data source with the same syntax.

Advantage of LINQ

The code size: There are many occasions that the users have to write long sentences for getting a SQL query. LINQ provides relatively short codes in such advanced occasions. It reduces the complexity of the code and makes it much easy for the program to read.



Code equality: One of the most advantages in using LINQ is that its availability over any .NET platform language such as C#.net, VB.NET.

Sample Example on LINQ

Step 1
First create a web project.

Step 2
First Create a student class,it is look like this

   1:   /// <summary>

   2:      /// Store the Student Data

   3:      /// </summary>

   4:      public class Student

   5:      {

   6:          #region Property

   7:          /// <summary>

   8:          /// Get and Set the Student ID

   9:          /// </summary>

  10:          public int StudentID

  11:          {

  12:              get;

  13:              set;

  14:          }

  15:   

  16:          /// <summary>

  17:          /// get and set the Student First Name

  18:          /// </summary>

  19:          public String FirstName

  20:          {

  21:              get;

  22:              set;

  23:          }

  24:   

  25:          /// <summary>

  26:          /// get and set the student Last name

  27:          /// </summary>

  28:          public String LastName

  29:          {

  30:              get;

  31:              set;

  32:          }

  33:   

  34:   

  35:          #endregion

  36:      }

this class used for stored data in student object

Step 3
In default class [default.aspx.cs] write a method for store the student data which return Student list.it is look like this
in this code i intiliaze student object with following data

   1:   /// <summary>

   2:      /// Add the Student Data and Store data in list

   3:      /// </summary>

   4:      /// <returns>List</returns>

   5:      private List<Student> AddData()

   6:      {

   7:          try

   8:          {

   9:              List<Student> ListObj = new List<Student>();

  10:   

  11:              Student Std1 = new Student();

  12:              Std1.StudentID = 1;   

  13:              Std1.FirstName = "kishor";

  14:              Std1.LastName = "Naik";

  15:   

  16:   

  17:              Student Std2 = new Student();

  18:              Std2.StudentID = 2;

  19:              Std2.FirstName = "kedar";

  20:              Std2.LastName = "deshpande";

  21:   

  22:   

  23:              Student Std3 = new Student();

  24:              Std3.StudentID = 3;

  25:              Std3.FirstName = "avinash";

  26:              Std3.LastName = "k";

  27:   

  28:   

  29:              Student Std4 = new Student();

  30:              Std4.StudentID = 4;

  31:              Std4.FirstName = "sanket";

  32:              Std4.LastName = "C";

  33:   

  34:   

  35:              Student Std5 = new Student();

  36:              Std5.StudentID = 5;

  37:              Std5.FirstName = "Ramdas";

  38:              Std5.LastName = "B";

  39:   

  40:              Student Std6 = new Student();

  41:              Std6.StudentID = 6;

  42:              Std6.FirstName = "bhavesh";

  43:              Std6.LastName = "pisat";

  44:   

  45:              ListObj.Add(Std1);

  46:              ListObj.Add(Std2);

  47:              ListObj.Add(Std3);

  48:              ListObj.Add(Std4);

  49:              ListObj.Add(Std5);

  50:              ListObj.Add(Std6);

  51:   

  52:              return ListObj; 

  53:          }

  54:          catch (Exception ex)

  55:          {

  56:              throw new Exception(ex.Message); 

  57:          }

  58:      }

Step 4
Create a LinqDemo class for fetching data from Student ListObject,it is look like this

   1:     public static class LinqDemo

   2:      {

   3:   

   4:          #region Methods

   5:          /// <summary>

   6:          /// Get The Student Data with return list Object

   7:          /// </summary>

   8:          /// <param name="ListObj">Specify the List object</param>

   9:          /// <returns>List</Student></returns>

  10:          public static List<Student> GetStudentDataList(List<Student> ListObj)

  11:          {

  12:              try

  13:              {

  14:                  var Query = from Q in ListObj

  15:                              select Q;

  16:   

  17:                  return Query.ToList<Student>();

  18:              }

  19:              catch (Exception ex)

  20:              {

  21:                  throw new Exception(ex.Message); 

  22:              }

  23:          }

  24:   

  25:          /// <summary>

  26:          /// Get The Student Data with return Ilist

  27:          /// </summary>

  28:          /// <param name="ListObj">Specify the List object</param>

  29:          /// <returns>Ilist</returns>

  30:          public static IList GetStudentDataIList(List<Student> ListObj)

  31:          {

  32:              try

  33:              {

  34:                  var Query=from Q in ListObj

  35:                            select Q;

  36:   

  37:                  return (IList)Query.ToList<Student>();   

  38:              }

  39:              catch (Exception ex)

  40:              {

  41:                  throw new Exception(ex.Message);

  42:              }

  43:          }

  44:          #endregion

  45:          /// <summary>

  46:          /// Get The Student Data with return IQueryable

  47:          /// </summary>

  48:          /// <param name="ListObj">Specify the List object</param>

  49:          /// <returns>IQueryable</returns>

  50:          public static IQueryable GetStudentDataIQueryable(List<Student> ListObj)

  51:          {

  52:              try

  53:              {

  54:                  var Query = from Q in ListObj

  55:                              select Q;

  56:   

  57:                  return Query.AsQueryable();  

  58:              }

  59:              catch (Exception ex)

  60:              {

  61:                  throw new Exception(ex.Message); 

  62:              }

  63:          }

  64:   

  65:          /// <summary>

  66:          /// Get The Student Data with return IEnumerable

  67:          /// </summary>

  68:          /// <param name="Listobj">Specify the List object</param>

  69:          /// <returns>IEnumerable</returns>

  70:          public static IEnumerable<Student> GetStudentDataIEnumerable(List<Student> Listobj)

  71:          {

  72:              try

  73:              {

  74:                  var Query = from Q in Listobj

  75:                              select Q;

  76:   

  77:                  return Query.AsEnumerable<Student>();   

  78:              }

  79:              catch (Exception ex)

  80:              {

  81:                  throw new Exception(ex.Message); 

  82:              }

  83:          }

  84:      }

Step 5
In default class [default.aspx.cs] write a method for binding data to the gridview,it is look like this

   1:   protected void Page_Load(object sender, EventArgs e)

   2:      {

   3:          try

   4:          {

   5:              if (IsPostBack == false)

   6:              {

   7:                  BindData(); 

   8:              }

   9:          }

  10:          catch (Exception)

  11:          { }

  12:      }

  13:     

  14:    private void BindData()

  15:      {

  16:          try

  17:          {

  18:              /// return with List

  19:   

  20:              //gvStudent.DataSource = LinqDemo.GetStudentDataList(AddData());

  21:              //gvStudent.DataBind();

  22:   

  23:              /// return with Ilist

  24:              //gvStudent.DataSource = LinqDemo.GetStudentDataIList(AddData());

  25:              //gvStudent.DataBind(); 

  26:   

  27:              /// return with IQuerable

  28:              //gvStudent.DataSource = LinqDemo.GetStudentDataIQueryable(AddData());

  29:              //gvStudent.DataBind();

  30:   

  31:              /// return with IEnumerable

  32:              gvStudent.DataSource = LinqDemo.GetStudentDataIEnumerable(AddData());

  33:              gvStudent.DataBind();   

  34:          }

  35:          catch (Exception)

  36:          { }

  37:      }

  38:   

  39:    

Final Code
1. default.aspx

   1:  <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

   2:   

   3:  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

   4:   

   5:  <html xmlns="http://www.w3.org/1999/xhtml">

   6:  <head runat="server">

   7:      <title>Untitled Page</title>

   8:  </head>

   9:  <body>

  10:      <form id="form1" runat="server">

  11:      <div>

  12:          <asp:ScriptManager ID="ScriptManager1" runat="server">

  13:          </asp:ScriptManager>

  14:          

  15:          <asp:UpdatePanel ID="UpdatePanel1" runat="server">

  16:              <ContentTemplate>

  17:                  <asp:GridView ID="gvStudent" runat="server">

  18:                  </asp:GridView>

  19:              </ContentTemplate>

  20:          </asp:UpdatePanel>

  21:      </div>

  22:      </form>

  23:  </body>

  24:  </html>

2.Default.aspx.cs

   1:  using System;

   2:  using System.Configuration;

   3:  using System.Data;

   4:  using System.Linq;

   5:  using System.Web;

   6:  using System.Web.Security;

   7:  using System.Web.UI;

   8:  using System.Web.UI.HtmlControls;

   9:  using System.Web.UI.WebControls;

  10:  using System.Web.UI.WebControls.WebParts;

  11:  using System.Xml.Linq;

  12:  using System.Collections;

  13:  using System.Collections.Generic;

  14:  using System.Runtime.Serialization;

  15:   

  16:  public partial class _Default : System.Web.UI.Page 

  17:  {

  18:      protected void Page_Load(object sender, EventArgs e)

  19:      {

  20:          try

  21:          {

  22:              if (IsPostBack == false)

  23:              {

  24:                  BindData(); 

  25:              }

  26:          }

  27:          catch (Exception)

  28:          { }

  29:      }

  30:   

  31:      #region Method

  32:      /// <summary>

  33:      /// Add the Student Data and Store data in list

  34:      /// </summary>

  35:      /// <returns>List</returns>

  36:      private List<Student> AddData()

  37:      {

  38:          try

  39:          {

  40:              List<Student> ListObj = new List<Student>();

  41:   

  42:              Student Std1 = new Student();

  43:              Std1.StudentID = 1;   

  44:              Std1.FirstName = "kishor";

  45:              Std1.LastName = "Naik";

  46:   

  47:   

  48:              Student Std2 = new Student();

  49:              Std2.StudentID = 2;

  50:              Std2.FirstName = "kedar";

  51:              Std2.LastName = "deshpande";

  52:   

  53:   

  54:              Student Std3 = new Student();

  55:              Std3.StudentID = 3;

  56:              Std3.FirstName = "avinash";

  57:              Std3.LastName = "k";

  58:   

  59:   

  60:              Student Std4 = new Student();

  61:              Std4.StudentID = 4;

  62:              Std4.FirstName = "sanket";

  63:              Std4.LastName = "C";

  64:   

  65:   

  66:              Student Std5 = new Student();

  67:              Std5.StudentID = 5;

  68:              Std5.FirstName = "Ramdas";

  69:              Std5.LastName = "B";

  70:   

  71:              Student Std6 = new Student();

  72:              Std6.StudentID = 6;

  73:              Std6.FirstName = "bhavesh";

  74:              Std6.LastName = "pisat";

  75:   

  76:              ListObj.Add(Std1);

  77:              ListObj.Add(Std2);

  78:              ListObj.Add(Std3);

  79:              ListObj.Add(Std4);

  80:              ListObj.Add(Std5);

  81:              ListObj.Add(Std6);

  82:   

  83:              return ListObj; 

  84:          }

  85:          catch (Exception ex)

  86:          {

  87:              throw new Exception(ex.Message); 

  88:          }

  89:      }

  90:   

  91:      /// <summary>

  92:      /// Bind the Data GridView

  93:      /// </summary>

  94:      private void BindData()

  95:      {

  96:          try

  97:          {

  98:              /// return with List

  99:   

 100:              //gvStudent.DataSource = LinqDemo.GetStudentDataList(AddData());

 101:              //gvStudent.DataBind();

 102:   

 103:              /// return with Ilist

 104:              //gvStudent.DataSource = LinqDemo.GetStudentDataIList(AddData());

 105:              //gvStudent.DataBind(); 

 106:   

 107:              /// return with IQuerable

 108:              //gvStudent.DataSource = LinqDemo.GetStudentDataIQueryable(AddData());

 109:              //gvStudent.DataBind();

 110:   

 111:              /// return with IEnumerable

 112:              gvStudent.DataSource = LinqDemo.GetStudentDataIEnumerable(AddData());

 113:              gvStudent.DataBind();   

 114:          }

 115:          catch (Exception)

 116:          { }

 117:      }

 118:      #endregion

 119:   

 120:      /// <summary>

 121:      /// Store the Student Data

 122:      /// </summary>

 123:      public class Student

 124:      {

 125:          #region Property

 126:          /// <summary>

 127:          /// Get and Set the Student ID

 128:          /// </summary>

 129:          public int StudentID

 130:          {

 131:              get;

 132:              set;

 133:          }

 134:   

 135:          /// <summary>

 136:          /// get and set the Student First Name

 137:          /// </summary>

 138:          public String FirstName

 139:          {

 140:              get;

 141:              set;

 142:          }

 143:   

 144:          /// <summary>

 145:          /// get and set the student Last name

 146:          /// </summary>

 147:          public String LastName

 148:          {

 149:              get;

 150:              set;

 151:          }

 152:   

 153:   

 154:          #endregion

 155:      }

 156:   

 157:      public static class LinqDemo

 158:      {

 159:   

 160:          #region Methods

 161:          /// <summary>

 162:          /// Get The Student Data with return list Object

 163:          /// </summary>

 164:          /// <param name="ListObj">Specify the List object</param>

 165:          /// <returns>List</Student></returns>

 166:          public static List<Student> GetStudentDataList(List<Student> ListObj)

 167:          {

 168:              try

 169:              {

 170:                  var Query = from Q in ListObj

 171:                              select Q;

 172:   

 173:                  return Query.ToList<Student>();

 174:              }

 175:              catch (Exception ex)

 176:              {

 177:                  throw new Exception(ex.Message); 

 178:              }

 179:          }

 180:   

 181:          /// <summary>

 182:          /// Get The Student Data with return Ilist

 183:          /// </summary>

 184:          /// <param name="ListObj">Specify the List object</param>

 185:          /// <returns>Ilist</returns>

 186:          public static IList GetStudentDataIList(List<Student> ListObj)

 187:          {

 188:              try

 189:              {

 190:                  var Query=from Q in ListObj

 191:                            select Q;

 192:   

 193:                  return (IList)Query.ToList<Student>();   

 194:              }

 195:              catch (Exception ex)

 196:              {

 197:                  throw new Exception(ex.Message);

 198:              }

 199:          }

 200:          #endregion

 201:          /// <summary>

 202:          /// Get The Student Data with return IQueryable

 203:          /// </summary>

 204:          /// <param name="ListObj">Specify the List object</param>

 205:          /// <returns>IQueryable</returns>

 206:          public static IQueryable GetStudentDataIQueryable(List<Student> ListObj)

 207:          {

 208:              try

 209:              {

 210:                  var Query = from Q in ListObj

 211:                              select Q;

 212:   

 213:                  return Query.AsQueryable();  

 214:              }

 215:              catch (Exception ex)

 216:              {

 217:                  throw new Exception(ex.Message); 

 218:              }

 219:          }

 220:   

 221:          /// <summary>

 222:          /// Get The Student Data with return IEnumerable

 223:          /// </summary>

 224:          /// <param name="Listobj">Specify the List object</param>

 225:          /// <returns>IEnumerable</returns>

 226:          public static IEnumerable<Student> GetStudentDataIEnumerable(List<Student> Listobj)

 227:          {

 228:              try

 229:              {

 230:                  var Query = from Q in Listobj

 231:                              select Q;

 232:   

 233:                  return Query.AsEnumerable<Student>();   

 234:              }

 235:              catch (Exception ex)

 236:              {

 237:                  throw new Exception(ex.Message); 

 238:              }

 239:          }

 240:      }

 241:  }