After the event handler for the TypeValidationCompleted event returns, the standard validation event, Validating , is raised. A handler can be implemented to perform standard validation, perhaps including canceling the event. Any of these events result in a call to the Parse method of the type specified with the ValidatingType property. A successful conversion equates to a successful validation. Once a MaskedTextBox is on the Form, you can move it around and resize it using mouse and set its properties and events. MaskedTextBox control looses focus. We can also use Width and Height property instead of Size property. The following code snippet sets the maximum length of a MaskedTextBox to 50 characters. The easiest way to set properties is from the Properties Window. It is used to access the control in the code. The ValidateText method is called. The validation sequence begins when one of the following occurs:
Once a MaskedTextBox is on the Form, you can move it around and resize it using mouse and set its properties and events. If you click on these properties in Properties window, the Color Dialog pops up. The Properties window looks like Figure 2. Cancel property back to false. We can set Mask property by clicking on the control and click on the little handler and select Set Mask link as you can see in Figure 3. The following code snippet sets background color, foreground color, Text, Name, and Font properties of a MaskedTextBox. After the event handler for the TypeValidationCompleted event returns, the standard validation event, Validating , is raised. Parse is responsible for the conversion of the formatted input string to the target type. If the event is not canceled in step 3, the standard control validation event Validated is raised. To do so, we use Form. After Parse returns, the TypeValidationCompleted event is raised. A successful conversion equates to a successful validation. The following code snippet sets the Mask property at run-time. When this property is not null, the following series of events occurs: If it fails, the TypeValidationCompleted event handler displays an error message to the user. The following code snippet sets and gets the name and text of a MaskedTextBox control. Value between 0 and 9. The easiest way to set properties is from the Properties Window. The following code snippet sets BackColor and ForeColor properties. The following code snippet creates a MaskedTextBox control object. If this position is blank in the mask, it will be rendered as a space in the Text property. The following code snippet sets Font property at run-time. MaskedTextBox control looses focus. If the value is a valid DateTime , the code verifies that the date supplied is not prior to today's date. The default value of border style is Fixed3D. The Text property is retrieved. The Size property specifies the size of the control.
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