Masks

Masks allow you to restrict data input in text editors. They can also be used to format editor values in display mode (when an editor does not have focus).

To enable masked input, do the following:

• Set an editor's TextEditor.MaskType property to a mask type.
• Set the editor's TextEditor.Mask property to a specific mask.

The following mask types are supported:

• Numeric — Mask mode tailored to accept numeric values.
• DateTime — Mask mode tailored to accept date-time values.

The following topics give you more details on supported mask modes and masks:

• Numeric Masks
• Date-Time Masks

Using the Mask as a Display Format

The mask specified by the TextEditor.Mask property can be used to format the editor's value in display mode (when text editing is not active). The TextEditor.MaskUseAsDisplayFormat property specifies this setting. The property's default value is true.

Mask Culture Settings

Many masks are dependent on the current culture. For instance, the decimal separator for numeric masks is different in different cultures. Date-time values are formatted using culture-specific patterns and localized names for the days of the week and months.

The TextEditor.MaskCulture property allows you to set the culture to use by the mask. If this property is not set, the application's default culture is used.

Example

The following code sets the "c" numeric mask to enter currency values in a text editor, and applies the Chinese (Simplified) culture to the mask.

textEditor1.EditorValue = 12.34567;
textEditor1.MaskType = Eremex.AvaloniaUI.Controls.Editors.MaskType.Numeric;
textEditor1.MaskCulture = new CultureInfo("zh-CN");
textEditor1.Mask = "c";