private void MRPTextBox_Leave(object sender, EventArgs e) { if (!String.IsNullOrEmpty(MRPTextBox.Text)) { MRPErrorLabel.ResetText(); } }
private bool IsValid() { if (String.IsNullOrEmpty(invoiceNoTextBox.Text)) { invoiceNoErrorLabel.Text = "Please Enter Invoice/Bill No"; return(false); } else { invoiceNoErrorLabel.ResetText(); } if (Convert.ToInt32(supplierComboBox.SelectedValue) == 0) { supplierErrorLabel.Text = "Please Select Supplier"; return(false); } else { supplierErrorLabel.ResetText(); } if (Convert.ToInt32(categoryComboBox.SelectedValue) == 0) { categoryErrorLabel.Text = "Please Select Category"; return(false); } else { supplierErrorLabel.ResetText(); } if (Convert.ToInt32(productComboBox.SelectedValue) == 0) { productErrorLabel.Text = "Please Select Product"; return(false); } else { productErrorLabel.ResetText(); } if (String.IsNullOrEmpty(quantityTextBox.Text)) { quantityErrorLabel.Text = "Please Enter Quantity"; return(false); } else { quantityErrorLabel.ResetText(); } if (String.IsNullOrEmpty(unitPriceTextBox.Text)) { unitPriceErrorLabel.Text = "Please Enter Unit Price"; return(false); } else { unitPriceErrorLabel.ResetText(); } if (String.IsNullOrEmpty(MRPTextBox.Text)) { MRPErrorLabel.Text = "Please Enter M.R.P (Tk.)"; return(false); } else { MRPErrorLabel.ResetText(); } return(true); }