How to bind dataformcombobox field to an enum?

[Pranav]

I have a datadormcombobox field in raddataform i have tried to set Items source property binding to Enum ""but it wont load contents from enum.Also if I set autogenerate fields property to true then it  loads enum in combobox.so whats wrong with manual setting?

[Stefan]

Hi Pranav,

A way of achieving this is to use EnumDataSource class in your Business Object, as suggested below:

public EnumDataSource PositionEnum
{
    get
    {
        return new EnumDataSource { EnumType = typeof(Position) };
    }
}

Then you should be able to set the enum values as an ItemsSource of DataFormComboBoxFiled:

<telerik:DataFormComboBoxField
              ItemsSource="{Binding CurrentItem.PositionEnum,
    RelativeSource={RelativeSource AncestorType=telerik:RadDataForm},
    Mode=OneWay}">
</telerik:DataFormComboBoxField>

You can also check the Binding Enum to DataFormComboBoxField forum thread for further reference.

I hope that this helps.

Best Regards,
Stefan
Telerik

 

 

[Eric]

Hi Stefan,

I'm trying to achieve the same here; binding a enum value to a DataFormComboBoxField of a DataForm in WPF.

Your ItemSource doesn't seems te work. It's not populating the ComboBox and it's not showing the current value.

What is the correct definition for binding an enum?

 

[Stefan]

Hello Eric,

From the provided information, I guess that you have binding errors. Can you please check this out? They can be observed in the output window in Visual Studio when debugging the application.

I have also prepared a sample application, demonstrating how the EnumDataSource can be used to populate DataFormComboBoxField.

Hope this helps.

Best Regards,
Stefan X1
Telerik

[Eric]

Hi,

Thank you for your reply.

I've fixed the issue with the following;

<telerik:DataFormComboBoxField 
    Label="Gender"
    DisplayMemberPath="DisplayName"                                                    
    SelectedValuePath="Value"                                                    
    ItemsSource="{Binding DataContext.GenderEnum, ElementName=Main, Mode=OneWay}"
    DataMemberBinding="{Binding Gender, Mode=TwoWay}" />

GenderEnum is of type EnumDataSource