SelectedItem issue

[Zarko Vorkapic]

Hi,

I've applied this datatemplate to a combobox itemtemplate

<DataTemplate x:Name="DataTemplateComboBoxMain">
            <Grid x:Name="GridDataTemplate">
                <TextBlock>
                    <TextBlock.Text>
                        <Binding Path="PostName"></Binding>
                     </TextBlock.Text>
                </TextBlock>
                <TextBlock>
                    <TextBlock.Text>
                        ,
                     </TextBlock.Text>
                </TextBlock>
                <TextBlock>
                    <TextBlock.Text>
                        <Binding Path="PostCode"></Binding>
                     </TextBlock.Text>
                </TextBlock>
            </Grid>
        </DataTemplate>

Dropdown list is populated ok, but when I select an item in a dropdown and it closes my selected item looks like MyClassLibrary.MyTypeName as you can see in an attached screenshots.

Combobox in XAML looks like

<telerik:RadComboBox x:Name="ComboBoxMain"
        ItemTemplate="{StaticResources DataTemplateComboBoxMain}"
        Height="25"
        Width="Auto"
        FilteringMode="None"
        SelectionChanged="ComboBoxMain_SelectionChanged"
        IsTextSearchEnabled="False"
        IsEditable="True"
        KeyUp="ComboBoxMain_KeyUp">
        </telerik:RadComboBox>

Am I doing something wrong or is this another bug?

Regards,
Zarko

[Valeri Hristov]

Hi Zarko,

You need to set the TextSearch.TextPath attached property on RadComboBox, the same way we are doing it in our online sample (the last combo in the list):
http://demos.telerik.com/silverlight/#ComboBox/DataBinding

Sincerely yours,
Valeri Hristov
the Telerik team

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[Zarko Vorkapic]

Hi Valeri,

That example doesn't really help me. I need selected text to look exactly like the one in dropdown list, not just one property (like 'Name' in your example).

How can I accomplish this?

Thank you very much,
Zarko

[Valeri Hristov]

Hello Zarko,

Unfortunately there is no way to customize RadComboBox to display several property values in its edit box. To achieve the display you want you need to create a property in your data class, which will combine the needed values. Something like this:
public class PostalInfo
{
    ...
    public string PostCodeAndName
    {
        get
        {
            return string.Format("{0}, {1}", this.PostCode, this.PostName);
        }
    }
    ...
}

Then set TextSearch.TextPath = "PostCodeAndName".

All the best,
Valeri Hristov
the Telerik team

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Watch a video on how to optimize your support resource searches and check out more tips on the blogs.