I want to block user to edit/select combobox. I tried using cmbbox.IsReadOnly = True
and cmbbox.IsEditable = False
which allows user to change selection by alt
and arrow' keys
. cmbbox.isEnabled = False
works and my requirement is to change combobox foreground color to 'Black' when it is disabled. Can anyone please help me to fix it?
In XAML:
<telerik:RadComboBox Grid.Row="0" Grid.Column="2" Grid.ColumnSpan="2" x:Name="combobox1" IsEditable="True" IsFilteringEnabled="True" ItemsSource="{Binding}" TabIndex="7" Style="{ DynamicResource DropDownListStyle }" IsTabStop="True" KeyboardNavigation.TabNavigation ="Local" SelectAllTextEvent="None" Height="23" Margin="0,0,0,2" VerticalAlignment="Center"/>
In Codebehind:
combobox1.IsEnabled = False
In Style:
<Style x:Name="DropDownListStyle" x:Key="DropDownListStyle" TargetType="telerik:RadComboBox" >
<Setter Property="Foreground" Value="#FF000000"/>
<Setter Property="BorderBrush" Value="#ffcccccc"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="HorizontalContentAlignment" Value="Left" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="FontSize" Value="12"/>
<Setter Property="FontWeight" Value="Thin"/>
<Setter Property="FontFamily" Value="Trebuchet MS"/>
<Setter Property="Panel.ZIndex" Value="10" />
<Setter Property="Height" Value="23" />
<!-- <Setter Property="Focusable" Value="True"/> -->
<Style.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" Value="White"/>
<Setter Property="Foreground" Value="Black"/>
</Trigger>
</Style.Triggers>
</Style>
I have fixed it by setting IsReadonly = True
property to combobox
and triggering PreviewKeyDown
event.
combobox1.IsReadonly = True
and
Private Sub combobox1_PreviewKeyDown(sender As Object, e As Windows.Input.KeyEventArgs) Handles combobox1.PreviewKeyDown
If combobox1.IsReadOnly Then
If e.Key = Key.Tab Then
e.Handled = False
Else
e.Handled = True
End If
End If
End Sub