We inherit from XamDataGrid in order to provide some custom styling and event handlers.  We have updated to v16.2.20162.2109 and after the update our grids now have extra Checkbox columns called Selected and IsDirty.

If I switch our custom grid to the standard XamDataGrid, the columns go away.  I boiled it down to the point where I simply use the inherited control causes the problem.  This did not occur prior to the 2109 build (we were on 2045 previously).

Here is the code of the control's xaml file:

<igDP:XamDataGrid x:Class="SSI.Windows.Simulation.Conjoint.CustomXamDataGrid"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:SSI.Windows.Simulation.Conjoint"
xmlns:igDP="http://infragistics.com/DataPresenter"
mc:Ignorable="d"
d:DesignHeight="300"
d:DesignWidth="300">
</igDP:XamDataGrid>

Here is the code behind:

namespace SSI.Windows.Simulation.Conjoint
{
public partial class CustomXamDataGrid : Infragistics.Windows.DataPresenter.XamDataGrid
{
public CustomXamDataGrid ()
{
InitializeComponent();
}
}
}

Here is an simplified example of where the control is used:

<local:CustomXamDataGrid AutoFit="False"
DataSource="{Binding Levels, Mode=TwoWay}">
<local:CustomXamDataGrid.FieldLayoutSettings>
<igDP:FieldLayoutSettings AutoGenerateFields="False"
AllowDelete="False"
AllowFieldMoving="No"
AllowClipboardOperations="All"
SelectionTypeRecord="Single"
SupportDataErrorInfo="RecordsAndCells"
DataErrorDisplayMode="ErrorIconAndHighlight" />
</local:CustomXamDataGrid.FieldLayoutSettings>
<local:CustomXamDataGrid.FieldLayouts>
<igDP:FieldLayout>
<igDP:Field Name="Label">
<igDP:Field.Settings>
<igDP:FieldSettings AllowEdit="True"
Width="Auto"
CellClickAction="SelectCell" />
</igDP:Field.Settings>
</igDP:Field>
<igDP:Field Name="Value"
Visibility="Collapsed"
Width="Auto">
<igDP:Field.Settings>
<igDP:FieldSettings AllowEdit="True"
EditAsType="{x:Type system:Double}"
CellClickAction="SelectCell">
</igDP:FieldSettings>
</igDP:Field.Settings>
</igDP:Field>
</igDP:FieldLayout>
</local:CustomXamDataGrid.FieldLayouts>
</local:CustomXamDataGrid>

What can I do?