private void DeserializeColumns(string layoutData)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(layoutData);
GridViewInfo gridInfo = null;
XmlSerializer xmlSerializer = new XmlSerializer(typeof(GridViewInfo));
using (XmlReader xr = XmlReader.Create(new StringReader(layoutData))) {
gridInfo = (GridViewInfo)xmlSerializer.Deserialize(xr);
}
gridInfo.RestoreGridViewLayout(grid);
}