Hey,

I've same requirements to show filter drop down icon visible. As user do not know he/she can do filtering.

So I am trying this to set FilterCellEditorStyle in fieldsettings like below but i am facing this error. "'XamComboEditor' TargetType does not match type of element 'XamCheckEditor'." Can some one please let me know how i can resolve this and it should start working.

<Style x:Key="DropDownTest" TargetType="{x:Type igEditors:XamComboEditor}">
<Setter Property="DropDownButtonDisplayMode" Value="Always" />
</Style>

<igDP:XamDataGrid.FieldSettings>
<igDP:FieldSettings CellHeight="18" ExpandableFieldRecordHeaderDisplayMode="AlwaysDisplayHeader" AllowRecordFiltering="True" CellClickAction="SelectRecord"
AutoSizeOptions="All" FilterCellEditorStyle="{StaticResource  DropDownTest}" FilterClearButtonVisibility="Visible" FilterStringComparisonType="CaseInsensitive" ></igDP:FieldSettings></igDP:XamDataGrid.FieldSettings>

Please let me know as this is urgent.

 Thanks Alex,

        It is working for me. See the xaml below.

<

>

}">

="Always" />

>

Have you tried setting the DropDownButtonDisplayMode property of the XamComboEditor to Always?

This should make the DropDownButton appear at all times.

Sorry Alex, it seems there was a disconnect in communication. I wanted to change the style of the combobox background and foreground. That seems to be doable via the FilterCellEditorStyle and FilterCellValuePresenterStyle.

Here is a test sample of my FilterCellEditorStyle:
    <Style x:Key="SampleFilterCellEditorStyle" TargetType="{x:Type igEditors:XamComboEditor}">
        <Setter Property="Background" Value="Red" />
        <Setter Property="TextElement.Foreground" Value="White" />
        <Style.Triggers>
            <Trigger Property="IsInEditMode" Value="true">
                <Setter Property="Background" Value="White" />
                <Setter Property="TextElement.Foreground" Value="Yellow" />
            </Trigger>
        </Style.Triggers>
    </Style>

However, I want the ComboBox of the filter to be visible always. Not just when you hover over the filter. For this, I think it is being set in the FilterCellValuePresenter. I see a ControlTemplate.Trigger like below, but I can't find the style which is setting the Visibility to Hidden or Collapsed for that template.

DataPresenterGeneric_Express.xaml (Line 4066):
<!-- IsActive -->
<Trigger Property="IsActive" Value="true">
    <Setter TargetName="PART_EditorSite" Property="Style" Value="{Binding Path=ForegroundActiveStyle, RelativeSource={RelativeSource TemplatedParent}}"/>
    <Setter Property="Visibility" TargetName="Active" Value="Visible"/>
</Trigger>

Can you help? If not, can you provide the template for the PART_EditorSite? That way, I could overwrite it and its  triggers.

To the best of my knowledge, there is no way to restyle the items in the dropdown except creating a style for the ComboBoxItem (with no x:key) and putting it in the  resources of the FilterCellValuePresenter's style.