将实体添加到Autocad命令选择集

Question

我想要做的是类似于下面的代码。但是我想要添加包含某些xdata的实体，而不是从选择集中删除实体。这是可能还是我要月亮？下面的链接是针对此处显示的代码。

SelectionAddedEventHandler

public class MyCommands
{
[CommandMethod("MyReactor")]
public void MyReactor()
{
    Editor ed = acApp.DocumentManager.MdiActiveDocument.Editor;
    ed.SelectionAdded +=  new SelectionAddedEventHandler(ed_SelectionAdded);
}

void ed_SelectionAdded(object sender, SelectionAddedEventArgs e)
{
    string cmds = (string)acApp.GetSystemVariable("CMDNAMES");
    if (!cmds.StartsWith("COPY"))
        return;
    int i = 0;
    List<int> indices = new List<int>();
    foreach (SelectedObject selObj in e.AddedObjects)
    {
        if (selObj.ObjectId.ObjectClass == RXClass.GetClass(typeof(Circle)))
            indices.Insert(0, i);
        i++;
    }
    foreach (int current in indices)
        e.Remove(current);
}
}

Answer 1

你有没有试过这样的东西呢？

ObjectId acObjId = //the object id of the xdata object 
SelectedObject obj = new SelectedObject(acObjId, null);
e.Add(obj);