private void btnUpload_Click(object sender, EventArgs e) { if (_deptId == "") { Base.ShowError("Required", "Please select a department"); return; } if (_dataToUpload == null || _dataToUpload.Count < 1) { return; } var upload = _repo.AddBulkStudent(_dataToUpload, _deptId); if (upload == string.Empty) { Base.ShowSuccess("Success", "Record uploaded successfully."); this.Close(); } else { Base.ShowError("Failed", upload); } }