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PODual NHibernate Class Level Validators Issue
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  1. PODual NHibernate Class Level Validators Issue
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    copied!<p>I'm using WPF and I've got an Entity bound to a series of controls. The entity is decorated with two class level validators as follows:</p> <pre><code>[ExampleValidator1, ExampleValidator2] public class Entity </code></pre> <p>An Entity has a series of fields of which not all are always shown, dependent on the selection from combo box. A validator exists for each of these selections, if the "type" of entity does not match a particular validator that validator returns true and obviously the correct validator will validate the actual fields as follows:</p> <pre><code>public bool IsValid(object value, IConstraintValidatorContext constraintValidatorContext) { constraintValidatorContext.DisableDefaultError(); var allPropertiesValid = true; var entity= (Entity)value; if (supplier.ParticularEntityType) { return true; } if (String.IsNullOrEmpty(entity.Name) || entity.Name.Length &gt; 50) { constraintValidatorContext.AddInvalid&lt;Entity, string&gt;("must be 50 or shorter and not empty", x =&gt; x.Name); allPropertiesValid = false; } </code></pre> <p>and the XAML is as follows:</p> <pre><code> &lt;TextBox Grid.Row="0" Grid.Column="3"&gt; &lt;TextBox.Text&gt; &lt;Binding Path="Entity.Name" UpdateSourceTrigger="PropertyChanged" ValidatesOnDataErrors="True"&gt; &lt;/Binding&gt; &lt;/TextBox.Text&gt; &lt;/TextBox&gt; </code></pre> <p>Obviously I get the nice pretty red box and tool tips informing users of the validation requirements.</p> <p>My issue is that when the selection in the combobox is changed, the red highlighting persists (becomes a small red square when a control is hidden). Could someone direct me the right way please!</p>
 

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