// 下拉按钮的点击事件
private void but_Click(object sender, EventArgs e)
{
Button but = (Button)sender;
int x = ControlsUtils.LocationOnClient(this.拉按钮_pan).X;
if (this.button1.Name.Equals(but.Name))
{
if (historicalPanel == null || historicalPanel.IsDisposed)
{
historicalPanel = ControlsUtils.GetHistoricalPanel(拉按钮_but
, 拉按钮_pan.Parent.FindForm().Controls
, false
, history
, 拉按钮_but.Width + this.button1.Width, 23);
historicalPanel.Location = new Point(x, 拉按钮_pan.Location.Y + 拉按钮_pan.Height + 5);
}
else
{
historicalPanel.Dispose();
historicalPanel = null;
}
}
}