RadComboBox inside RadExpander

[Srinivas]

Hi,

I am trying to include RadComboBox inside RadExpander but I am getting "The property 'Content' is set more than once" error message. Below is the code, can you please help me?

<

 

telerikCommon:RadExpander Grid.Row="1" Grid.Column="0">

 

     

<telerikCommon:RadExpander.Header>

 

         

<TextBlock x:Name="SelectCompany" Text="Select Company" Visibility="Visible" />

 

     

</telerikCommon:RadExpander.Header>

 

     

<telerikCommon:RadExpander.Content>

 

     

<telerikCommon:RadWrapPanel x:Name="SelectCompanyPanel" IsAnimated="True" 
                AnimationDuration="333"  Orientation="Horizontal"/>

 

         

<telerikInput:RadComboBox x:Name="CompanyComboBox" Width="200" Margin="4" Height="40" >

 

                 

<telerikInput:RadComboBox.ItemTemplate>

 

                     

<DataTemplate>

 

                         

<StackPanel>

 

                             

<TextBlock Text="{Binding Company}" />

 

                              

<StackPanel Orientation="Horizontal">

 

                                 

<TextBlock Text="{Binding CompanyName}" />

 

 

                              </StackPanel>

 

                        </StackPanel>

                     

</DataTemplate>

 

 

 

                </telerikInput:RadComboBox.ItemTemplate>

 

 

        </telerikInput:RadComboBox>

 

 

</telerikCommon:RadExpander.Content>

 

 

</telerikCommon:RadExpander>

 

 

I was able to include RadTreeView without any issue but not combo box. Please help me at the earliest possible.

Thanks
Srinivas

[Kaloyan]

Hello Srinivas,

You have to place the RadComboBox inside the RadWrapPanel or remove the RadWrapPanel. The prbolem here is that you are putting two controls as a content of the RadExpander which is not possible. Check the code snippet below with the correct solution:

<Grid x:Name="LayoutRoot">
        <telerikControls:RadExpander Grid.Row="1" Grid.Column="0">
            <telerikControls:RadExpander.Header>
                <TextBlock x:Name="SelectCompany" Text="Select Company" Visibility="Visible" />
            </telerikControls:RadExpander.Header>
            <telerikControls:RadExpander.Content>
                <telerikControls:RadWrapPanel x:Name="SelectCompanyPanel" IsAnimated="True"
                        AnimationDuration="333" Orientation="Horizontal">
                    <telerikInput:RadComboBox x:Name="CompanyComboBox" Width="200" Margin="4"
                            Height="40">
                        <telerikInput:RadComboBox.ItemTemplate>

                            <DataTemplate>

                                <StackPanel>

                                    <TextBlock Text="{Binding Company}" />

                                    <StackPanel Orientation="Horizontal">

                                        <TextBlock Text="{Binding CompanyName}" />

                                    </StackPanel>

                                </StackPanel>

                            </DataTemplate>

                        </telerikInput:RadComboBox.ItemTemplate>
                    </telerikInput:RadComboBox>
                </telerikControls:RadWrapPanel>

            </telerikControls:RadExpander.Content>

        </telerikControls:RadExpander>
    </Grid>

Best wishes,
Kaloyan
the Telerik team

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