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    <p>I wouldn't recommend setting the height of controls to zero - for one thing, it would still be possible to tab to a 0-height control which would be confusing for users to say the least :)</p> <p>As an alternative, try binding the visibility of any affected controls to the combobox selection, e.g:</p> <pre><code>&lt;UserControl xmlns:cnv="clr-namespace:your_namespace_here"&gt; &lt;Grid Margin="5"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="Auto" /&gt; &lt;RowDefinition Height="Auto" /&gt; &lt;/Grid.RowDefinitions&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="150" /&gt; &lt;ColumnDefinition Width="*" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Label Grid.Row="0" Grid.Column="0" Content="Label1:" /&gt; &lt;ListBox Grid.Row="0" Grid.Column="1" /&gt; &lt;Label Grid.Row="1" Grid.Column="0" Content="Label2:" /&gt; &lt;ComboBox Name="cbo" Grid.Row="1" Grid.Column="1" /&gt; &lt;Label Grid.Row="2" Grid.Column="0" Content="Label3:" Visibility="{Binding ElementName=cbo, Path=SelectedIndex, Converter={cnv:IntToVisibilityConverter}}" /&gt; &lt;TextBox Grid.Row="2" Grid.Column="1" /&gt; &lt;/Grid&gt; </code></pre> <p></p> <p>In code, put together a converter which returns the relevant Visibility type:</p> <pre><code>namespace your_namespace_here { public class IntToVisibilityConverter : MarkupExtension, IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { int _value = (int)value; return (_value &gt; 0) ? Visibility.Visible : Visibility.Collapsed; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } #endregion public override object ProvideValue(IServiceProvider serviceProvider) { return this; } } } </code></pre> <p>Note that in this example, the converter will return Visiblity.Collapsed if the first item in the combo is selected, otherwise Visiblity.Visible.</p> <p>Untested code, but the method is sound. Hope this is of some use!</p>
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    1. COI see what you mean. Makes sense. Thanks very much!
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    2. CO`System.Windows.Controls.BooleanToVisibilityConverter` is built into the framework too if you don't need to write your own
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Guidance
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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