private void clearErrorProvider() { try { errorProvider1.SetError(txtMortgageAmount, ""); errorProvider1.SetError(txtInterestRate, ""); errorProvider1.SetError(txtMortgageTerm, ""); errorProvider1.SetError(rtfAmortTable, ""); } catch (System.Exception ex) { InputUtilities.clearException(ex); } }
private void txtInput_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e) { TextBox txtBox; //if a navigation key do not react try { txtBox = (TextBox)(sender); if (InputUtilities.isNavigationKey(e)) { errorProvider1.SetError(txtBox, ""); //allow navigation keys to be entered nonNumberEntered = false; e.Handled = false; } else if (InputUtilities.isNumericKey(e)) { errorProvider1.SetError(txtBox, ""); nonNumberEntered = false; e.Handled = false; } else { string errorMessage = "Please enter only numeric values for the " + txtBox.Tag; errorProvider1.SetError(txtBox, errorMessage); //stop value form being entered since it is non-numeric nonNumberEntered = true; e.Handled = true; } } catch (Exception ex) { //do nothing, catch the error later before calculations are done InputUtilities.clearException(ex); } }