private void deleteAllToolStripMenuItem_Click(object sender, EventArgs e)
{
//删除所有
try
{
CommandDeleteAll command = new CommandDeleteAll(currentlyDrawForm.getDrawArea().GraphicsList);
command.Execute();
currentlyDrawForm.getDrawArea().SetDirty();
currentlyDrawForm.getDrawArea().Refresh();
currentlyDrawForm.getDrawArea().AddCommandToHistory(command);
}
catch (Exception ex)
{
MessageBox.Show("删除所有设备发生异常:" + ex);
}
}
