I'm using XamComboEdit and of the key features I need it for is the Auto Complete feature. Here's an example of how I use it in my xaml:

<ig:XamComboEditor
  AutoComplete="True"
  ItemsSource="{Binding SectionTypes, Mode=OneWay}"
  DisplayMemberPath="Type"
  SelectedItem="{Binding SectionType}"
  Style="{StaticResource AutoCompleteComboBoxStyle}">

  <ig:XamComboEditor.ItemFilters>
    <ig:ComboItemFilter LogicalOperator="And">
      <ig:ComparisonCondition Operator="Contains"/>
    </ig:ComboItemFilter>
  </ig:XamComboEditor.ItemFilters>
</ig:XamComboEditor>

With ig defined as: xmlns:ig="">schemas.infragistics.com/xaml"

Now, if I try to add ItemsProvider to this it will give me an error. ItemsProvider is not recognized or is not accessible.

This however does allow for ItemsProvider but not AutoComplete:

<editors:XamComboEditor
  DisplayMemberPath="Name"
  SelectedItem="{Binding CircuitId}">

  <editors:XamComboEditor.ItemsProvider>
    <editors:ComboBoxItemsProvider>
      <editors:ComboBoxItemsProvider.Items>
        <editors:ComboBoxDataItem DisplayText="Item 1" Value="Item 1" />
        <editors:ComboBoxDataItem DisplayText="Item 2" Value="Item 2" />
        <editors:ComboBoxDataItem DisplayText="Item 3" Value="Item 3"/>
      </editors:ComboBoxItemsProvider.Items>
    </editors:ComboBoxItemsProvider>
  </editors:XamComboEditor.ItemsProvider>
 </editors:XamComboEditor>

With editors: defined as: xmlns:editors="">infragistics.com/Editors"

so it seems there are two different XamComboEditors and they have different options. Is there way to combine the two? I want autocomplete with the ItemsProvider.