C#

private void FuelleUnitsAuto()
 {
      Invoke(new clearListViewDelegate(BeginUpdateListView), new object[] { lV_Einheiten });
      Invoke(new beginUpdateListViewDelegate(ClearListView), new object[] { lV_Einheiten });

      ListView.SelectedListViewItemCollection coll = (ListView.SelectedListViewItemCollection)Invoke (new selectedListViewItemsDelegate(SelectedListViewItems), new object[] { lV_Num });
            

            //Here it fails with error INVALIDOPERATIONEXCEPTION
            foreach (cEinsatzListViewItem i in coll)
            {
                //do something
            }

      Invoke(new endUpdateListViewDelegate(EndUpdateListView), new object[] { lV_Einheiten });
}

private delegate ListView.SelectedListViewItemCollection selectedListViewItemsDelegate(ListView view);

private ListView.SelectedListViewItemCollection SelectedListViewItems(ListView view)
{
    return view.SelectedItems;
}

private void button1_Click(object sender, EventArgs e)
{
    FistTableAdapter.Fill(dataSet1.Table1);
    bndSrc.DataSource = dataSet1.Table1;

}

private void button2_Click(object sender, EventArgs e)
{
    SecondTableAdapter.Fill(dataSet1.Table2);
    bndSrc.DataSource = dataSet1.Table2;

}

protected void Button2_Click()
{
double Lat_max = 48.11576;
double Long_max = 29.17936;
mapObj map = new mapObj("1.map");
layerObj layer = new layerObj(map);
layer.name = "School";
layer.type = MS_LAYER_TYPE.MS_LAYER_POINT;
layer.status = mapscript.MS_ON;
// create a class and style for this layer
classObj clsobj = new classObj(layer);
styleObj styobj = new styleObj(clsobj);
styobj.symbol = map.getSymbolByName("marker");
pointObj poiobj = new pointObj(0,0, 0, 0);
poiobj.setXY(Lat_max, Long_max, 0);
lineObj line = new lineObj();
line.add(poiobj);
shapeObj shp = new shapeObj ((int) MS_SHAPE_TYPE.MS_SHAPE_POINT);
shp.add(line);
layer.addFeature(shp);
imageObj img = map.draw();
}

namespace ReadXMLfromFile
{
    class xmlpath
    {
        static void Main(string[] args)
        {
            XmlTextReader reader = new XmlTextReader ("books.xml");
            while (reader.Read())
            {
                switch (reader.NodeType)
                {
                    case XmlNodeType.Element: // The node is an element.
                        Console.Write("<" + reader.Name);
                        Console.WriteLine(">");
                        break;
                    case XmlNodeType.Text: //Display the text in each element.
                        Console.WriteLine (reader.Value);
                        break;
                    case XmlNodeType.EndElement: //Display the end of the element.
                        Console.Write("                       Console.WriteLine(">");
                        break;
                }
            }
            Console.ReadLine();
        }
    }
}