In this blog we will know how to count Grid view row using JavaScript.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Gridview._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="g1" Runat="Server">

</asp:GridView>

<asp:Button ID="Button1" runat="server" Text="Button"

onclick="Button1_Click" />

<input type="hidden" id="Hiddenfield1" runat="server" />

</div>

</form>

</body>

</html>

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.Data.SqlClient;

namespace Gridview

{

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

{

string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;

SqlCommand com;

SqlDataAdapter sqlda;

DataSet ds;

string str;

protected void Page_Load(object sender, EventArgs e)

{

bindgrid();

}

private void bindgrid()

{

SqlConnection con = new SqlConnection(connStr);

con.Open();

str = "select * from employee";

com = new SqlCommand(str, con);

sqlda = new SqlDataAdapter(com);

ds = new DataSet();

sqlda.Fill(ds, "employee");

g1.DataMember = "employee";

g1.DataSource = ds;

g1.DataBind();

Hiddenfield1.Value = g1.Rows.Count.ToString();

con.Close();

}

protected void Button1_Click(object sender, EventArgs e)

{

Button1.Attributes.Add("onclick","alert(document.forms[0].Hiddenfield1.value);");

}

}

}