void DisplaySelectProducts() { this.tabControl1.SelectedIndex = 2; //this.richTextBoxDisp.Clear(); dt.Clear(); for (int i = 0; i < lsProducts.Count; i++) { ProductItem _item = lsProducts[i]; //this.richTextBoxDisp.AppendText(string.Format("{0}\t{1}\t{2}\r\n", _item.ID, _item.sourceID, _item.Titel)); dt.Rows.Add(_item.ToArray()); } gridBind(this.dataGridViewProduct, dt, captionProductGrid); }