C#进行Visio开发的事件处理

Visio的二次开发过程中，必定要处理很多Visio事件，事件基本上分为三类：Document事件、Applicaiton事件、AxDrawingControl事件。Document事件是每个文档创建或者打开都需要重新绑定一次的，但是Application事件不变，即不需要重新绑定，AxDrawingControl是ActiveX控件的事件响应。
在C#进行Visio的开发中，通过继承接口IVisEventProc，可以创建事件的侦听处理类，如下所示：

    [ComVisible(true)]
    public sealed class EventSink2 : IVisEventProc
     }

事件有很多类，有Application级别的，有Document级别的，有Page级别的，有Shape级别的，有Windows级别的，有Cell级别的..............，下面截取一部分事件代码看看

                    // Document event codes
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtDoc + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtDel:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtCodeBefDocSave:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtCodeBefDocSaveAs:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtCodeDocDesign:

                    // Page event codes
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtPage + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtDel:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtPage + visEvtAdd:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtPage + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtMod:

                    // Master event codes
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtMaster + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtDel:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtMaster + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtMod:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtCodeCancelMasterDel:

                   // Shape event codes
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtShape + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtDel:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtCodeShapeBeforeTextEdit:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtShape + visEvtAdd:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtShape + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtMod:

                    // Cell event codes
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtCell + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtMod:
                    case (short)Microsoft.Office.Interop.Visio.VisEventCodes.
                        visEvtFormula + (short)Microsoft.Office.Interop.Visio.
                        VisEventCodes.visEvtMod:

还有很多很多..

将事件和我们的处理函数联系起来，还需要对事件进行侦听，即AddAdvise，下面列出一段如何侦听事件的代码供参考

            const string sink = "";
            Event newEvent = null;

            EventList applicationEvents = eventApplication.EventList;
            EventList documentEvents = eventDocument.EventList;

            newEvent = documentEvents.AddAdvise(
                (unchecked((short)VisEventCodes.visEvtAdd) + (short)VisEventCodes.visEvtShape),
                (IVisEventProc)this, sink, "ShapeAdd");

            newEvent = documentEvents.AddAdvise(
                (short)VisEventCodes.visEvtDel + (short)VisEventCodes.visEvtShape,
                (IVisEventProc)this, sink, "ShapeDelete");

              newEvent = documentEvents.AddAdvise(
                (short)VisEventCodes.visEvtMod + (short)VisEventCodes.visEvtCell,
                (IVisEventProc)this, sink, "CellChanged");

             newEvent = documentEvents.AddAdvise(
                (short)VisEventCodes.visEvtCodeShapeExitTextEdit,
                (IVisEventProc)this, sink, "ShapeExitedTextEdit");

             newEvent = documentEvents.AddAdvise(
                (short)VisEventCodes.visEvtCodeQueryCancelSelDel,
                (IVisEventProc)this, sink, "QueryCancelSelectionDelete");

具体的使用，最好下载Visio2007 SDK进行学习，自己编写一些例子对事件进行处理