Question

I am trying to change the visibility with a trigger when a particular value in a combobox is selected, and I got the following XAML

 <ItemsControl ItemsSource="{Binding AccessControl.Credentials}" >
                        <ItemsControl.ItemTemplate>
                        <DataTemplate>                              
                            <Grid  >                                  

                             <ComboBox  Name="chkFieldType"                                          
                                        SelectedValue="{Binding Path=ValueSourceType,Converter={StaticResource enumstringConv}}"
                                        SelectedValuePath="Tag" SelectionChanged="chkFieldType_SelectionChanged" >
                                           <ComboBoxItem Tag="User">User</ComboBoxItem>                                     
                                           <ComboBoxItem Tag="SessionCredential">Field</ComboBoxItem>
                                           <ComboBoxItem Tag="Inherit">From other Resource</ComboBoxItem>
                             </ComboBox>


                                    <Border " Visibility="Hidden">
                                        <Border.Resources>
                                            <Style TargetType="{x:Type Border}">
                                                <Style.Triggers>
                                                    <DataTrigger Binding="{Binding Path=SelectedValue, ElementName=chkFieldType}" Value="Inherit">
                                                        <Setter Property="Visibility" Value="Visible" />
                                                    </DataTrigger>
                                                </Style.Triggers>
                                            </Style>
                                        </Border.Resources>
                                        <ComboBox/>                                         
                                    </Border>

In this case a border. The selected value is “Inherit” of type string but the border remainds hidden.

Answer 1

I ended up setting the visibility manually via the code behind when the selectedItem event is fired..