private void cbTagIdent_DropDownClose(object sender, EventArgs e)
{
if (cbTagIdent.SelectedItem == null)
return;
if (cbTagIdent.SelectedItem.ToString() == "null")
{
this.cbTagType.Text = "null";
}
int width = TextRenderer.MeasureText(cbTagIdent.SelectedItem.ToString(), cbTagIdent.Font).Width + 20;
if (width > (label1.Left - cbTagIdent.Left - 20))
width = (label1.Left - cbTagIdent.Left - 20);
cbTagIdent.Width = width;
cbTagIdent.SelectionStart = cbTagIdent.Text.Length - 1;
cbTagIdent.SelectionLength = 0;
}