protected void cmdReport_Click(object sender, EventArgs e) { RoleUser DB = new RoleUser(); string varResponse = DB.AddRetentionPeriod(DateTime.Parse(cboStartDate.Text), DateTime.Parse(cboEndDate.Text), txtUserLabel.Text); if (varResponse == "Successful operation") { lblResults.Text = "Operation successful"; } else { lblResults.Text = "Error in operation"; } }