void MoveSelectedRow(int stepDir)
{
if (SelectedItem == null)
{
MessageBox.Show("No item selected.");
return;
}
var currentIndex = Rows.IndexOf(SelectedItem);
if (stepDir == -1 && currentIndex == 0)
{
return;
}
if (stepDir == 1 && currentIndex == Rows.Count() - 1)
{
return;
}
var item = SelectedItem.GetFieldInfo();
_tableDefinitionModel.Definition.ColumnDefinitions.Remove(item);
_tableDefinitionModel.Definition.ColumnDefinitions.Insert(currentIndex + stepDir, item);
Update();
SelectedItem = Rows[currentIndex + stepDir];
_tableDefinitionModel.TriggerUpdates();
}