... <igEditors:XamComboEditor Name="xamComboEditor1" VerticalAlignment="Top"> </igEditors:XamComboEditor> ...
You can bind xamComboEditor™ to several different data sources, including a DataSet. If you want to bind xamComboEditor to a DataSet using Extensible Application Markup Language (XAML), you can create an ObjectDataProvider that returns a DataSet instead of a collection of business objects. The XAML declaration required for this implementation would be very similar to the XAML declaration for binding xamComboEditor to a collection. However, to cut down on redundant information, the steps below will use procedural code to bind xamComboEditor to a DataSet.
You will have to Create a Flat DataSet if you want to follow the examples in the steps below.
You will declaratively create a xamComboEditor control and a ComboBoxItemsProvider object using XAML. You will then write procedural code to bind xamComboEditor to a DataSet.
Add a xamComboEditor to your Window and name it.
In XAML:
... <igEditors:XamComboEditor Name="xamComboEditor1" VerticalAlignment="Top"> </igEditors:XamComboEditor> ...
Add a ComboBoxItemsProvider to xamComboEditor.
The xamComboEditor will not create an instance of a ComboBoxItemsProvider object automatically. You have to either declare a ComboBoxItemsProvider in XAML or set xamComboEditor’s ItemsProvider property to an instance of a ComboBoxItemsProvider in the code-behind.
In XAML:
...
<igEditors:XamComboEditor.ItemsProvider>
<igEditors:ComboBoxItemsProvider />
</igEditors:XamComboEditor.ItemsProvider>
...
Attach an event handler for the Loaded event of your Window.
In XAML:
<Window … Loaded="Window_Loaded" ...>
In the code-behind, create a method named 'Window_Loaded' to handle the Window’s Load event.
In Visual Basic:
Private Sub Window_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
'TODO: Set the data source of your controls here
End Sub
In C#:
private void Window_Loaded(object sender, RoutedEventArgs e)
{
//TODO: Set the data source of your controls here
}
Set the ItemsSource property of the ItemsProvider object to the DefaultView property of the first Table in the flat DataSet.
You can set properties of the ItemsProvider object because you set the ItemsProvider property of xamComboEditor to a new instance of a ComboBoxItemsProvider object in XAML. If you had not done so, you would have to set the ItemsProvider property of xamComboEditor to an instance of a ComboBoxItemsProvider before setting any properties off the ItemsProvider object.
In Visual Basic:
... Me.xamComboEditor1.ItemsProvider.ItemsSource = Me.exampleDataSet.Tables(0).DefaultView ...
In C#:
... this.xamComboEditor1.ItemsProvider.ItemsSource = this.exampleDataSet.Tables[0].DefaultView; ...
Set the DisplayMemberPath property of the ComboBoxItemsProvider object to the string ContactName.
The DisplayMemberPath property determines the display value as well as the value that is stored in the Text property of xamComboEditor.
In Visual Basic:
itemsProvider1.DisplayMemberPath = "ContactName"
In C#:
itemsProvider1.DisplayMemberPath = "ContactName";
Set the ValuePath property of the ComboBoxItemsProvider object to the string CustomerID.
The ValuePath property determines the value that is stored in the Value property of xamComboEditor. If the ValuePath property points to a property or DataColumn that has a data type of string, there is no need to set the ValueType property of xamComboEditor explicitly. If the ValueType property is not set, it will default to a data type of string.
In Visual Basic:
itemsProvider1.ValuePath = "CustomerID"
In C#:
itemsProvider1.ValuePath = "CustomerID";
Run the project and click on the xamComboEditor control to display a drop-down list of customers from the Northwind database.