binding a lookupedit grid column

Dan Cheetham 1

created 14 years ago

I'm trying to display a lookupedit in a wpf grid and can't find an example.
My grid is bound to a BindingList<Customer> and each customer has a type that will be selected from a lookupedit.
The grid also has access to a BindingList<CustomerType> of all the available customer types.
public class CustomerType
{
   public string Description { get; set; }
}
public class Customer
{
   public CustomerType { get; set; }
   public string FirstName { get; set; }
   public string LastName { get; set; }
}
I want to show the FirstName, LastName and the Description of the type as separate columns on the grid and have the user be able to choose the type from the lookupedit.

Comments (3)

DevExpress Support Team 14 years ago

Hi Dan,
Thank you for your question.
There is no necessity to use LookUpEdit in your case. To display a list of avaliable values in a drop down you can use the ComboBoxEditSettings. To accomplish your task just declare the CustomerClass column in the following manner:

XAML
<dxg:GridColumn FieldName="CustomerType">  
    <dxg:GridColumn.EditSettings>  
        <dxe:ComboBoxEditSettings Name="CustomerTypeComboEditSettings"  
                                    DisplayMember="Description"  
                                    IsTextEditable="False"  
                                    ItemsSource="{Binding AvaliableCustomerTypesList}"  
                                    />  
    </dxg:GridColumn.EditSettings>  
</dxg:GridColumn>

The DisplayMemeber property specifies which member of CustomerType class to use as it's text representation. Also you'll need to set the ItemsSource as a list of avaliable customer types.
Please refer to the attachment for implementation details. Also see the Assigning Editors to Columns help topic for more information.
Thanks,
Dmitry

ComboEditS...ttings.zip

Dan Cheetham 1 14 years ago

I need to use a lookup edit. The drop down needs to display multiple columns and sort on any of the displayed columns.

DevExpress Support Team 14 years ago

Hi Dan,
I miss the fact that there must be multiple columns in the CustomerType drop down. In this case it is necessary to use LookUpEdit, you are right. To make it, you can use the following xaml:
<dxg:GridColumn FieldName="CustomerType">
    <dxg:GridColumn.EditSettings>
        <dxg:LookUpEditSettings Name="CustomerTypeLookUp"
                                DisplayMember="Description"
                                IsTextEditable="False"
                                ItemsSource="{Binding AvaliableCustomerTypesList}"
                                PopupMinWidth="300"
                                />
    </dxg:GridColumn.EditSettings>
</dxg:GridColumn>
I've modified the previous example to use a LookUpEdit. You can find it in the attachment.
Thanks,
Dmitry

LookUpEdit.zip

binding a lookupedit grid column

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