private void PickObjectInDrawing_Click(object sender, EventArgs e) { Picker picker = new DrawingHandler().GetPicker(); DrawingObject pickedObject = null; TSD.ViewBase viewBase = null; try { picker.PickObject("选择视图中的一个对象", out pickedObject, out viewBase); ShowDrawingObjectInfo(pickedObject, viewBase); } catch (System.Exception ex) { MessageBox.Show(ex.Message); return; } }