Dynamic columns + AutoGenerate + FieldLayout

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Ok, below is the code.

public partial class MainWindow : Window
    {
 
        private DataTable t1 = new DataTable();
        private DataTable t2 = new DataTable();
 
        public MainWindow()
        {
            InitializeComponent();
 
            t1.Columns.Add("RecordClass", System.Type.GetType("System.String"));
            t1.Columns.Add("KeyValue", System.Type.GetType("System.String"));
            t1.Columns.Add("DataValue", System.Type.GetType("System.String"));
 
            t1.Columns.Add("Dynamic1", System.Type.GetType("System.String"));
            t1.Columns.Add("Dynamic2", System.Type.GetType("System.String"));
 
            DataRow r = t1.NewRow();
            r["RecordClass"] = "Class";
            r["KeyValue"] = "Value1";
            r["DataValue"] = "Data1";
            r["Dynamic1"] = "Dynamic1";
            r["Dynamic2"] = "Dynamic2";
 
            t1.Rows.Add(r);
            
 
            t2.Columns.Add("RecordClass", System.Type.GetType("System.String"));
            t2.Columns.Add("KeyValue", System.Type.GetType("System.String"));
            t2.Columns.Add("DataValue", System.Type.GetType("System.String"));
 
            t2.Columns.Add("Dynamic1", System.Type.GetType("System.String"));
            t2.Columns.Add("Dynamic2", System.Type.GetType("System.String"));
            t2.Columns.Add("Dynamic3", System.Type.GetType("System.String"));
 
            DataRow r1 = t2.NewRow();
            r1["RecordClass"] = "Class";
            r1["KeyValue"] = "Value1";
            r1["DataValue"] = "Data1";
            r1["Dynamic1"] = "Dynamic1";
            r1["Dynamic2"] = "Dynamic2";
            r1["Dynamic3"] = "Dynamic3";
 
            t2.Rows.Add(r1);
 
 
        }
 
        private void test1_Click(object sender, RoutedEventArgs e)
        {
            xamDataGrid1.DataSource = t1.AsDataView();
        }
 
        private void test2_Click(object sender, RoutedEventArgs e)
        {
            xamDataGrid1.DataSource = t2.AsDataView();
        }
    }

Xaml:

<Window x:Class="FieldLayoutSample.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow"
        Height="350"
        Width="525"
        xmlns:igDP="http://infragistics.com/DataPresenter">
    <Grid>
 
 
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
 
        <StackPanel Orientation="Vertical">
            <Button x:Name="test1"
                    Content="Test 1"
                    Click="test1_Click" />
            <Button x:Name="test2"
                    Content="Test 2"
                    Click="test2_Click" />
        </StackPanel>
 
 
        <igDP:XamDataGrid Grid.Column="1"
                          HorizontalAlignment="Left"
                          Name="xamDataGrid1"
                          VerticalAlignment="Top">
 
            <igDP:XamDataGrid.FieldLayoutSettings>
                <igDP:FieldLayoutSettings AutoGenerateFields="True"
                                          HighlightAlternateRecords="True" />
            </igDP:XamDataGrid.FieldLayoutSettings>
 
 
            <igDP:XamDataGrid.FieldLayouts>
 
                <igDP:FieldLayout>
 
                    <igDP:FieldLayout.Fields>
 
                        <!--<igDP:UnboundField Name="Remove"
                                                       Width="Auto">
                                        <igDP:UnboundField.Settings>
                                            <igDP:FieldSettings CellWidth="40"
                                                                LabelWidth="40"
                                                                CellValuePresenterStyle="{StaticResource cvpRemoveButton}"
                                                                LabelPresenterStyle="{StaticResource lpTrashCan}" />
                                        </igDP:UnboundField.Settings>
                                    </igDP:UnboundField>-->
 
                        <igDP:Field Name="RecordClass"
                                    Visibility="Collapsed" />
 
                        <igDP:Field Name="KeyValue"
                                    Label="Key"
                                    Width="Auto" />
 
                        <igDP:Field Name="DataValue"
                                    Label="Value"
                                    Width="Auto" />
 
                    </igDP:FieldLayout.Fields>
 
                </igDP:FieldLayout>
 
            </igDP:XamDataGrid.FieldLayouts>
 
 
        </igDP:XamDataGrid>
 
 
    </Grid>
</Window>