Hello every one
i m getting an error(Input string was not in a correct format.) on click of detail button please help me to resolve this problem.
my code is
protected void grdexam_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "dtls")
{
Button btn = (Button)e.CommandSource;
var index =Convert.ToInt32(btn.CommandArgument.ToString());
GridViewRow row = grdexam.Rows[index];
Label l1 = (Label)row.FindControl("Label1");
SqlCommand cmd = new SqlCommand("select * from ExamMaster where groupid='" + Session["grpid"] + "' and papercode='" + l1 + "'", con);
SqlDataAdapter adp = new SqlDataAdapter();
DataTable dt = new DataTable();
adp.Fill(dt);
if (dt.Rows.Count > 0)
{
GridView1.DataSource = dt;
GridView1.DataBind();
}
else
{
Response.Write("wromg");
}
}
}
please help me
thanks in advance