My datasource is a list of entities containing 6 fields. This is bound to a XamDataGrid, which has a splitter bar and pins on the columns to fix/pin the columns.

Here is the entity
    public class Entity
    {
        public int Col1 { get; set; }
        public int Col2 { get; set; }
        public int Col3 { get; set; }
        public int Col4 { get; set; }
        public int Col5 { get; set; }
        public int Col6 { get; set; }
    }

and the XamDataGrid is defined in the xaml like
<igDP:XamDataGrid Name="Sample" >
    <igDP:XamDataGrid.FieldSettings>
        <igDP:FieldSettings AllowFixing="Near" />
    </igDP:XamDataGrid.FieldSettings>
    <igDP:XamDataGrid.FieldLayoutSettings>
        <igDP:FieldLayoutSettings FixedFieldUIType="ButtonAndSplitter" AutoGenerateFields="True" />
    </igDP:XamDataGrid.FieldLayoutSettings>
</igDP:XamDataGrid>

When I use the drag the splitter bar till Col5 in order to pin the columns, the ActualPosition of the columns visible changes from

Col1(unpinned), Col2(unpinned), Col3(unpinned), Col4(unpinned), Col5(unpinned), Col6(unpinned)
to
Col5(pinned), Col1(pinned), Col2(pinned), Col3(pinned), Col4(pinned), Col6(unpinned)
I think this might be expected behavior, so I decided to programmatically rearrange the columns back to
Col1(pinned), Col2(pinned), Col3(pinned), Col4(pinned), Col5(pinned), Col6(unpinned)

I tried the code below and placed it at the end of FieldPositionChanging, FieldPositionChanged and LayoutUpdated events in the XamDataGrid. The events get fired and the code gets executed, however the columns do not rearrange. Any ideas? Thanks in advance.

bool rearranged = false;
foreach (Field fs in Sample.DefaultFieldLayout.Fields)
{
    if (fs.ActualPosition.Column != fs.Index)
    {
        rearranged = true;
        break;
    }
}

if (rearranged)
{
    for (int i = 0; i < Sample.DefaultFieldLayout.Fields.Count; i++)
    {
        Field fs = Sample.DefaultFieldLayout.Fields[i];
        if (fs.ActualPosition.Column != fs.Index)
            Sample.DefaultFieldLayout.Fields.Move(fs.ActualPosition.Column, fs.Index);
    }
}