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@@ -388,7 +388,7 @@ A <xref:System.Windows.Controls.ValidationRule> object checks whether the value
- A <xref:System.Windows.Controls.ExceptionValidationRule> checks for exceptions thrown during the update of the binding source property. In the previous example, `StartPrice` is of type integer. When the user enters a value that cannot be converted to an integer, an exception is thrown, causing the binding to be marked as invalid. An alternative syntax to setting the <xref:System.Windows.Controls.ExceptionValidationRule> explicitly is to set the <xref:System.Windows.Data.Binding.ValidatesOnExceptions%2A> property to `true` on your <xref:System.Windows.Data.Binding> or <xref:System.Windows.Data.MultiBinding> object.
- A <xref:System.Windows.Controls.DataErrorValidationRule> object checks for errors that are raised by objects that implement the <xref:System.ComponentModel.IDataErrorInfo> interface. For an example of using this validation rule, see <xref:System.Windows.Controls.DataErrorValidationRule>. An alternative syntax to setting the <xref:System.Windows.Controls.DataErrorValidationRule> explicitly is to set the <xref:System.Windows.Data.Binding.ValidatesOnDataErrors%2A> property to `true` on your <xref:System.Windows.Data.Binding> or <xref:System.Windows.Data.MultiBinding> object.
- A <xref:System.Windows.Controls.DataErrorValidationRule> object checks for errors that are raised by objects that implement the <xref:System.ComponentModel.IDataErrorInfo> interface. For more information about using this validation rule, see <xref:System.Windows.Controls.DataErrorValidationRule>. An alternative syntax to setting the <xref:System.Windows.Controls.DataErrorValidationRule> explicitly is to set the <xref:System.Windows.Data.Binding.ValidatesOnDataErrors%2A> property to `true` on your <xref:System.Windows.Data.Binding> or <xref:System.Windows.Data.MultiBinding> object.
You can also create your own validation rule by deriving from the <xref:System.Windows.Controls.ValidationRule> class and implementing the <xref:System.Windows.Controls.ValidationRule.Validate%2A> method. The following example shows the rule used by the *Add Product Listing* "Start Date" <xref:System.Windows.Controls.TextBox> from the [What is data binding](#what-is-data-binding) section.