How to Bind Gridview with Datareader in asp.net | ASPMANTRA | Asp.Net,MVC,AngularJs,Jquery,Javascript,Sql Server AND WCF snippets and tutorial

How to Bind Gridview with Datareader in asp.net


Introduction: In this post I have try to explain how to bind Gridview in Asp.net using SqlDatareader, Store Procedure.
Description:
I have created a table name STUDENT_DETAIL and insert data into table.
STUDENT_ID
int
STUDENT_NAME
varchar(50)
STUDENT_ADDRESS
varchar(50)
STUDENT_CLASS
varchar(50)

STUDENT_ID is primary key.
Now open the Visual Studio>Go to File>New>Website. Add the Connectionstring in web.config file of website.
<configuration>
       <connectionStrings>
    <add name="con" connectionString="Data Source=SYS-1F78031ED0A;Initial Catalog=TestBlog;Integrated Security=True"/>
       </connectionStrings>
       <system.web>
        <compilation debug="true" targetFramework="4.0" />
    </system.web>
</configuration>

After that add new web form to website, drag and drop the Gridview data control
from Toolbox.

<asp:GridView ID="grdstudentdetail" runat="server" AutoGenerateColumns="False" DataKeyNames="STUDENT_ID">
            <Columns>
                <asp:TemplateField HeaderText="STUDENT NAME">
                    <ItemTemplate>
                        <asp:Label ID="lblname" runat="server" Text='<%# Eval("STUDENT_NAME") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="STUDENT ADDRESS">
                    <ItemTemplate>
                        <asp:Label ID="lbladdress" runat="server" Text='<%# Eval("STUDENT_ADDRESS") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="STUDENT CLASS">
                    <ItemTemplate>
                        <asp:Label ID="lblclass" runat="server" Text='<%# Eval("STUDENT_CLASS") %>'></asp:Label>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

Now go to .aspx.cs page and add namespace. Here DISPLAY_DATA is Store Procedure.

using System.Configuration;
using System.Data.SqlClient;
using System.Data;

Create a function to bind Gridview.
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["con"].ToString());
    protected void Page_Load(object sender, EventArgs e)
    {
        if(!IsPostBack)
        {
            Bindgrid();
        }
    }
    private void Bindgrid()
    {
        SqlCommand cmd = new SqlCommand("DISPLAY_DATA", con);
        con.Open();
        SqlDataReader dr = cmd.ExecuteReader();
        if (dr.HasRows)
        {
            grdstudentdetail.DataSource = dr;
            grdstudentdetail.DataBind();
            con.Close();
        }
        else
        {
            grdstudentdetail.DataSource = null;
            grdstudentdetail.DataBind();
            Messagebox("No Records Aviable");
        }
    }
         //To show message
    private void Messagebox(string Message)
    {
        Label lblMessageBox = new Label();

        lblMessageBox.Text =
            "<script language='javascript'>" + Environment.NewLine +
            "window.alert('" + Message + "')</script>";

        Page.Controls.Add(lblMessageBox);

    }

In VB

Add namespace to .aspx.vb page.

Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration

Create a function to bind Gridview.

Private con As New SqlConnection(ConfigurationManager.ConnectionStrings("con").ToString())

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then
            Bindgrid()
        End If
    End Sub
    Private Sub Bindgrid()
        Dim cmd As New SqlCommand("DISPLAY_DATA", con)
        con.Open()
        Dim dr As SqlDataReader = cmd.ExecuteReader()
        If dr.HasRows Then
            grdstudentdetail.DataSource = dr
            grdstudentdetail.DataBind()
            con.Close()
        Else
            grdstudentdetail.DataSource = Nothing
            grdstudentdetail.DataBind()
            Messagebox("No Records Aviable")
        End If
    End Sub
    'To show message
    Private Sub Messagebox(ByVal Message As String)
        Dim lblMessageBox As New Label()

        lblMessageBox.Text = "<script language='javascript'>" + Environment.NewLine & "window.alert('" & Message & "')</script>"

        Page.Controls.Add(lblMessageBox)

    End Sub

Now debug the application and check the result.
Related Articles on Gridview:

Ø  How to bind Gridview using Sqldataadapter, Datatable andQuery in Asp.net

Ø  How to highlight row on mouse hover in Gridview

Ø  How to edit and update Dropdownlist in Gridview datacontrol in Asp.net

Ø  How to Search Records in Gridview in Asp.net

Ø  How to Bind Gridview using Store Procedure, SqlDataAdapterand Datatable in Asp.net

Ø  How to use RadioButtonList control inside the Gridview inAsp.net

                         
  ØHow to use Fileupload control in Gridview inAsp.net

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