How can i get check box values in gridview i asp.net

Actually, if you have that problem means where you have placed that CheckBox..?

<asp:templatefield headertext="checkbox" xmlns:asp="#unknown">
    <itemtemplate>
    
         <asp:checkbox id="cb" runat="server" />
    
    </itemtemplate>
    <edititemtemplate>
   
         <asp:checkbox id="cb1" runat="server" />
                     
    </edititemtemplate>
    </asp:templatefield>

If you placed that one in ItemTemplate (ie, for 'cb' checkbox)then you can directly access it through
the code which is written by yourself and hitech_ssc

protected void b1_Click(object sender, EventArgs e)
       {
           foreach (GridViewRow item in gv.Rows)
           {
               CheckBox checkBox = (CheckBox)item.FindControl("cb");
               if (checkBox.Checked)
               {
               }

           }
       }

and if you want to access the checkbox=cb1, then
onEditing event

void gv_RowUpdating(object sender, GridViewUpdateEventArgs e)
       {

           CheckBox checkBox = (CheckBox)gv.Rows[e.RowIndex].FindControl("cb1");
           bool isChecked = checkBox.Checked;
           if (isChecked)
           {
           }
       }

Hi,

Try this-

for (GridViewRow row in Gridview1.Rows)
{
   if(row.RowType == DataControlRowType.DataRow)
   {
      if ((CheckBox)row.FindControl("CkbSelection")).Checked)
      {
        //code here
      }
   }
}