in gridview using checkbox how to select all rows and deselect all rows by clicking the checkbox in headerpart in asp.net with c#language with example and code

Question

in gridview using checkbox how to checked all rows and unchecked all rows by clicking the checkbox in headerpart in asp.net with c#language with example and code?

Satyapriya Nayak · Answer

Hi Ranjan Try this... Untitled Page function Selectall_Deselectall(CheckBoxControl) { if (CheckBoxControl.checked == true) { var i; for (i=0; i { if ((document.forms[0].elements[i].type == 'checkbox') && (document.forms[0].elements[i].name.indexOf('checkpoint') > -1)) { document.forms[0].elements[i].checked = true; } } } else { var i; for (i=0; i { if ((document.forms[0].elements[i].type == 'checkbox') && (document.forms[0].elements[i].name.indexOf('checkpoint') > -1)) { document.forms[0].elements[i].checked = false; } } } } 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 WebApplication5 { 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) { SqlConnection con = new SqlConnection(connStr); con.Open(); str = select * from student; com = new SqlCommand(str con); sqlda = new SqlDataAdapter(com); ds = new DataSet(); sqlda.Fill(ds student); GridView1.DataMember = student; GridView1.DataSource = ds; GridView1.DataBind(); con.Close(); } } } Thanks If this post helps you mark it as answer

Nitesh Luharuka · Answer

Check this - http://www.c-sharpcorner.com/uploadfile/krishnasarala/checkuncheck-all-checkboxes-in-Asp-Net-gridview/ http://www.c-sharpcorner.com/UploadFile/sushmita_kumari/Checkbox201112006232423PM/Checkbox2.aspx

Kunal Vaishya · Answer

In ASp.Net Put Check Box In header Template and Use It 1. Add Item Template Column In Gridview. 2.Add Check Box That Column in Header Template 3. you will get it you can put your code in that check box event