Confirm delete for GridView's CommandField using JavaScript

This CODE will help you to implement Confirm (Using Javascript) When click on DELETE in GRIDVIEW

For this you need to use asp:linkbutton

CODE For Gridview in test.aspx file is

<asp:gridview id="gv_test" onrowdatabound="gv_test_OnRowDataBound" runat="server" >

< columns >
< asp:templatefield headertext="Delete" >
< itemtemplate >

< asp:linkbutton commandargument='<%# Eval("id") %>' commandname="cmdDelete" id="btnDelete" onclientclick="javascript: return confirm('do u want to delete this record')" runat="server" >  DELETE  </ asp:linkbutton >

</ itemtemplate >
</ asp:templatefield >
</ columns >

CODE for  gv_test_OnRowDataBound Method in test.aspx.cs File is

protected void GridView1_RowCommand(object sender,  GridViewCommandEventArgs e)
    { 
//Through command  Name link Button will be identified.
        if (e.CommandName == "cmdDelete")
        {
            // This is id which you can use for DELETE purpose.
            string id = e.CommandArgument;
                       
        }
    }

Using above code you can get confirm before Delete in GRIDVIEW as given below: