protected void btnDeleteStudent_Click(object sender, EventArgs e) { try { int StudentUploadId = Convert.ToInt32(hdnDeleteId.Value);//Convert.ToInt32(((Button)sender).CommandArgument.ToString()); objStudent.DeleteStudentUpload(StudentUploadId); ClientScript.RegisterStartupScript(this.GetType(), "Popup", "successDelete();", true); //grdStudentDetails.PageIndex = e.NewPageIndex; _BindGrid(); } catch (Exception) { } }