Written by Hello there, here i m explaining how to use Databound fields using gridview before this article i have written an article on ItemTemplate fields using gridview.
*you can refer below link to get to know about how to create Events for gridview.
now first of all we will create a database. Here the following script, copy it and run it.
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N‘[dbo].[tbEmp]‘) AND type in (N‘U’))
BEGIN
CREATE TABLE [dbo].[tbEmp](
[id] [int] IDENTITY(1,1) NOT NULL,
[name] [varchar](50) NULL,
[age] [int] NULL,
[address] [varchar](50) NULL
) ON [PRIMARY]
END
Place the GridView control on a form and set the following property.
AutoGenerateColumns=”False”
And set the Gridview Events name is
onrowcancelingedit=”GridView1_RowCancelingEdit”
onrowdeleting=”GridView1_RowDeleting” onrowediting=”GridView1_RowEditing”
onrowupdating=”GridView1_RowUpdating”
*and one more thing set the readonly property true for Id field.
*set the Datafields of all databound
Or add the default.aspx page and paste the following source code in it.
<%@ 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>
<style type=”text/css”>
.style1
{
width: 100%;
}
</style>
</head>
<body>
<form id=”form1″ runat=”server”>
<div>
</div>
<table class=”style1″>
<tr>
<td>
Name</td>
<td>
<asp:TextBox ID=”txt_name” runat=”server”></asp:TextBox></td>
</tr>
<tr>
<td>
Age</td>
<td>
<asp:TextBox ID=”txt_age” runat=”server”></asp:TextBox></td>
</tr>
<tr>
<td>
Address</td>
<td>
<asp:TextBox ID=”txt_address” runat=”server”></asp:TextBox></td>
</tr>
<tr>
<td>
</td>
<td>
<asp:Button ID=”Button1″ runat=”server” onclick=”Button1_Click” Text=”Button” />
</td>
</tr>
<tr>
<td colspan=”2″>
<asp:Label ID=”lbl_msg” runat=”server” ForeColor=”Red”></asp:Label>
</td>
</tr>
<tr>
<td colspan=”2″>
<asp:GridView ID=”GridView1″ runat=”server” AutoGenerateColumns=”False”
AutoGenerateDeleteButton=”True” AutoGenerateEditButton=”True”
onrowdeleting=”GridView1_RowDeleting” onrowediting=”GridView1_RowEditing”
onrowcancelingedit=”GridView1_RowCancelingEdit”
onrowupdating=”GridView1_RowUpdating” CellPadding=”4″ ForeColor=”#333333″
GridLines=”None”>
<RowStyle BackColor=”#EFF3FB” />
<Columns>
<asp:BoundField DataField=”id” HeaderText=”Id” ReadOnly=”True” />
<asp:BoundField DataField=”Name” HeaderText=”Name” />
<asp:BoundField DataField=”Age” HeaderText=”Age” />
<asp:BoundField DataField=”address” HeaderText=”address” />
</Columns>
<FooterStyle BackColor=”#507CD1″ Font-Bold=”True” ForeColor=”White” />
<PagerStyle BackColor=”#2461BF” ForeColor=”White” HorizontalAlign=”Center” />
<SelectedRowStyle BackColor=”#D1DDF1″ Font-Bold=”True” ForeColor=”#333333″ />
<HeaderStyle BackColor=”#507CD1″ Font-Bold=”True” ForeColor=”White” />
<EditRowStyle BackColor=”#2461BF” />
<AlternatingRowStyle BackColor=”White” />
</asp:GridView>
</td>
</tr>
</table>
</form>
</body>
</html>
In Coding
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.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
SqlConnection con = new SqlConnection();
SqlDataAdapter adp;
SqlCommand cmd;
DataTable dt;
protected void Page_Load(object sender, EventArgs e)
{
con.ConnectionString = ConfigurationManager.ConnectionStrings["cnn"].ConnectionString;
con.Open();
if (con.State == ConnectionState.Closed)
{ con.Open(); }
con.Close();
if (IsPostBack == false)
{ grdview(); }
}
private void grdview()
{
if (con.State == ConnectionState.Closed)
{ con.Open(); }
adp = new SqlDataAdapter(“select * from tbemp order by id desc”, con);
dt = new DataTable();
adp.Fill(dt);
adp.Dispose();
if(dt.Rows.Count == 0)
{
lbl_msg.Text = “No Record”;
}
else
{
lbl_msg.Text = String.Empty;
GridView1.DataSource = dt;
GridView1.DataBind();
}
dt.Dispose();
con.Close();
}
protected void Button1_Click(object sender, EventArgs e)
{
if (con.State == ConnectionState.Closed)
{ con.Open(); }
cmd = new SqlCommand(“insert into tbEmp values(@name,@age,@address)”, con);
cmd.Parameters.AddWithValue(“@name”, txt_name.Text);
cmd.Parameters.AddWithValue(“@age”, txt_age.Text);
cmd.Parameters.AddWithValue(“@address”, txt_address.Text);
cmd.ExecuteNonQuery();
cmd.Dispose();
con.Close();
grdview();
txt_name.Text = String.Empty;
txt_age.Text = String.Empty;
txt_address.Text = String.Empty;
}
// Deleting the Record
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
if (con.State == ConnectionState.Closed)
{ con.Open(); }
Int32 idd = Convert.ToInt32(GridView1.Rows[e.RowIndex].Cells[1].Text);
cmd = new SqlCommand(“delete from tbemp where id=@id”, con);
cmd.Parameters.AddWithValue(“@id”, idd);
cmd.ExecuteNonQuery();
cmd.Dispose();
con.Close();
grdview();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
grdview();
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
grdview();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
if (con.State == ConnectionState.Closed)
{ con.Open(); }
Int32 idd = Convert.ToInt32(GridView1.Rows[e.RowIndex].Cells[1].Text);
cmd = new SqlCommand(“update tbemp set name=@name,age=@age,address=@address where id=@id”, con);
cmd.Parameters.AddWithValue(“@name”, ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text);
cmd.Parameters.AddWithValue(“@age”, ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text);
cmd.Parameters.AddWithValue(“@address”, ((TextBox)(GridView1.Rows[e.RowIndex].Cells[4].Controls[0])).Text);
cmd.Parameters.AddWithValue(“@id”, idd);
cmd.ExecuteNonQuery();
cmd.Dispose();
con.Close();
GridView1.EditIndex = -1;
grdview();
}
}
EDITING THE RECORDS
AFTER UPDATING THE RECORDS
DELETING THE RECORD
Hope you will like this post…
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