![]() ![]() ToolTip1.Show("We're sorry, but the value you entered is not a valid date. ToolTip1.ToolTipTitle = "Invalid Date Value" Public Sub MaskedTextBox1_TypeValidationCompleted(sender as Object, e as TypeValidationEventArgs) Please change the value.", maskedTextBox1, 5000) MaskedTextBox1.ValidatingType = GetType(System.DateTime)Īdd an event handler for the TypeValidationCompleted event: public void maskedTextBox1_TypeValidationCompleted(object sender, TypeValidationEventArgs e) Private Sub Form1_Load(sender as Object, e as EventArgs) Add this namespace in code behind of form to use regex. I m using 2 errorproviders, one to display warning icon and other to displat tick or success icon. On the form place 2 textbox and 2 errorprovider control from toolbox. MaskedTextBox1.TypeValidationCompleted += new TypeValidationEventHandler(maskedTextBox1_TypeValidationCompleted) Create new windows application in visual studio. MaskedTextBox1.ValidatingType = typeof(System.DateTime) In your form's Load event handler, assign a Type object representing the DateTime type to the MaskedTextBox control's ValidatingType property: private void Form1_Load(Object sender, EventArgs e) ToolTip1.Show("We're sorry, but only digits (0-9) are allowed in dates.", MaskedTextBox1, 5000)Īlert the User to a Type that Is Not Valid Add a balloon tip for invalid data types Private Sub MaskedTextBox1_MaskInputRejected(sender as Object, e as MaskInputRejectedEventArgs) Handles MaskedTextBox1.MaskInputRejected Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load ToolTip1.Show("We're sorry, but only digits (0-9) are allowed in dates.", maskedTextBox1, maskedTextBox1.Location, 5000) Void maskedTextBox1_MaskInputRejected(object sender, MaskInputRejectedEventArgs e) MaskedTextBox1.MaskInputRejected += new MaskInputRejectedEventHandler(maskedTextBox1_MaskInputRejected) ![]() public void Form1_Load(Object sender, EventArgs e) The balloon tip remains visible for five seconds, or until the user clicks it. Return to the Toolbox and add a ToolTip to your form.Ĭreate an event handler for the MaskInputRejected event that raises the ToolTip when an input error occurs. Alert the User to Input Errors Add a balloon tip for rejected mask input This property causes a short beep to sound every time the user attempts to input a character that violates the mask definition.įor a summary of the characters that the Mask property supports, see the Remarks section of the Mask property. In the Properties window set the BeepOnError property to true. In the Input Mask dialog box, select the Short Date mask and click OK. (ellipsis) button next to the property name. In the Properties window, select the Mask property and click the. Right-click the control and choose Properties. Open the form on which you want to place the MaskedTextBox control.ĭrag a MaskedTextBox control from the Toolbox to your form. Once you have configured the ErrorProvider for. You can now set the various properties of the ErrorProvider component for the data picker. In the Select a Component dialog, select the ErrorProvider component. Click on the ellipsis button next to the ErrorProvider property. Using the MaskInputRejected event handler to alert the user when a character does not conform to the maskĪssigning a type to the ValidatingType property and using the TypeValidationCompleted event handler to alert the user when the value they're attempting to commit is not valid for the typeĬreating the Project and Adding a Control To add a MaskedTextBox control to your form In the Properties window, locate the ErrorProvider property. Under Windows Forms, if you have a group of controls (e.g. Using System using using System.ComponentModel using System.Data using System.Drawing using System.Linq using System.Text using illustrated in this walkthrough include: Whilst developing the new UI for Trial Balance, one of the hurdles I ran into recently was the lack of an ErrorProvider control, similar to what there is in Windows Forms. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |