Databases
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    <p>We have this issue in our application as well. The validation only fires when bindings update, so you have to update them by hand. We do this in the Window's <a href="http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.loaded(VS.95).aspx" rel="noreferrer">Loaded</a> event:</p> <pre><code>public void Window_Loaded(object sender, RoutedEventArgs e) { // we manually fire the bindings so we get the validation initially txtName.GetBindingExpression(TextBox.TextProperty).UpdateSource(); txtCode.GetBindingExpression(TextBox.TextProperty).UpdateSource(); } </code></pre> <p>This will make the error template (red outline) appear, and set the <a href="http://msdn.microsoft.com/en-us/library/system.windows.controls.validation.haserror.aspx" rel="noreferrer">Validation.HasError</a> property, which we have triggering the OK button to disable:</p> <pre><code>&lt;Button x:Name="btnOK" Content="OK" IsDefault="True" Click="btnOK_Click"&gt; &lt;Button.Style&gt; &lt;Style TargetType="{x:Type Button}"&gt; &lt;Setter Property="IsEnabled" Value="false" /&gt; &lt;Style.Triggers&gt; &lt;!-- Require the controls to be valid in order to press OK --&gt; &lt;MultiDataTrigger&gt; &lt;MultiDataTrigger.Conditions&gt; &lt;Condition Binding="{Binding ElementName=txtName, Path=(Validation.HasError)}" Value="false" /&gt; &lt;Condition Binding="{Binding ElementName=txtCode, Path=(Validation.HasError)}" Value="false" /&gt; &lt;/MultiDataTrigger.Conditions&gt; &lt;Setter Property="IsEnabled" Value="true" /&gt; &lt;/MultiDataTrigger&gt; &lt;/Style.Triggers&gt; &lt;/Style&gt; &lt;/Button.Style&gt; &lt;/Button&gt; </code></pre>
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    1. COThis works and achieves what I was looking for, but I have no codebehind. Form logic is encapsulated in a ModelView. Since the ModelView is not supposed to have references to specific screen elements, how can this be done and still have no codebehind? Is there a way in XAML to force binding?
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    2. COwhat if you don't have a named element? what if it's a part of a template in the ItemsControl ?
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    3. COHello i'm a newby but i'm certain this is what i want as functionalities.Now my problem is that my application is connecting to a webservice for any of its functionalities.That means i don't have the datamodel in my app.I'm honestly looking for a way to do validation without data binding.Can somebody show me the way to follow? thanks
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      1. USblack sensei
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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