学步园

如何使用ASP.NET和VISIO的COM控件生成策略关系图- -

有些Web项目中要求显示下面的策略关系图，这种图形利用ASP.NET以及Microsoft VISIO的COM控件比较容易完成

这是我使用一个ASPX页面的代码

  private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
   if (!Page.IsPostBack)
   {
    if (!File.Exists(Server.MapPath(".") + "//Cache//" + Session.SessionID + ".jpg"))
    {
     Application app = new Visio.ApplicationClass();

     StrategyMap sm = new StrategyMap(); //调用VisioClass
     sm.GenStrategyMap(     //生成策略图
      app,
      Request.Cookies["zoneno"].ToString(),
      Request.Cookies["branchno"].ToString(),
      Request.Cookies["processdate"].ToString()
      );

     app.ActivePage.Export(Server.MapPath(".") + "//Cache//" + Session.SessionID + ".jpg"); //输出后台生成的Visio的图片

     app.ActiveDocument.Saved = true; //以免出现确认保存文件的确认窗口
     app.ActiveDocument.Close();  //关闭文件
     app.Quit();
    }
    imgStrategyMap.ImageUrl = "./Cache/" + Session.SessionID + ".jpg";
   }
  }

下面是生成策略图的代码

  private const string stencilFuncHNameU = "XFUNCH_M.VSS";
  private const string masterFuncBandNameU = "Functional band";
  private const string stencilFlowNameU = "BASFLO_M.VSS";
  private const string masterProcessNameU = "Process";
  private const string masterConnectorNameU = "Line-curve connector";
 
  private const string templateNameU = "XFUNC_M.VST";

  public bool GenStrategyMap(
   Visio.Application visioApplication,
   string strZoneNo,
   string strBranchNo,
   string strProcessDate
   )
  {
   bool returnValue = false;
   Visio.Document addedDocument;
   Visio.Page addedPage;

   try
   {

    addedDocument = visioApplication.Documents.Add(templateNameU);
    addedPage = visioApplication.ActivePage;

    // Drop masters in the stencil in one call.
    returnValue = DropMultipleShapes(addedPage);
   }
   catch (Exception err)
   {
    System.Diagnostics.Debug.WriteLine(err.Message);    
   }

   return returnValue;
  }

  public bool DropMultipleShapes(
   Visio.Page targetPage)
  {
   Visio.Master masterFuncBand;
   Visio.Master masterProcess;

   Visio.Shape shapePerspective;
   Visio.Shape shapeStrategyGoal;

   DropMaster masterDrop = new DropMaster();

   PerspectiveData dsPerspective;
   PerspectiveGoalData dsPersGoal;

   int nPtFBX = 0, nPtFBY = 0;
   int nPtProX = 350, nPtProY = 0;
   int nSep = 10, nProWidth = 70;
   int nGoalCount = 0;

   try
   {
    masterProcess = targetPage.Application.Documents[stencilFlowNameU].
     Masters.get_ItemU(masterProcessNameU);

    masterFuncBand = targetPage.Application.Documents[stencilFuncHNameU].
     Masters.get_ItemU(masterFuncBandNameU);     

    using (PerspectiveGoalDA daPersGoal = new PerspectiveGoalDA())
    {
     dsPerspective = daPersGoal.SelectPerspectives();

     foreach (DataRow drEachPers in dsPerspective.Tables[PerspectiveData.TABLE_PERSPECTIVE].Rows)
     {
      // Drawing Perspective Functional like Band
      nPtFBX = 100;
      nPtFBY += 90;

      shapePerspective = masterDrop.DropMasterOnPage(targetPage,
       masterFuncBand, stencilFuncHNameU,
       nPtFBX, 700 - nPtFBY, "pt");

      shapePerspective.Characters.Text = drEachPers[PerspectiveData.FIELD_PERSPECTIVENAME].ToString();

      dsPersGoal = daPersGoal.SelectPersGoal(drEachPers[PerspectiveData.FIELD_PERSPECTIVEID].ToString());

      nGoalCount = dsPersGoal.Tables[PerspectiveGoalData.TABLE_PERSGOALRELATIONSHIP].Rows.Count;
      if (nGoalCount % 2 != 0)
      {
       nPtProX = 350 - nProWidth / 2 - (nGoalCount - 1) * (nSep + nProWidth) / 2;
      }
      else
      {
       nPtProX = 350 - (nSep + nProWidth) * nGoalCount / 2 + nSep / 2;
      }

      foreach (DataRow drEachGoal in dsPersGoal.Tables[PerspectiveGoalData.TABLE_PERSGOALRELATIONSHIP].Rows)
      {
       // Drawing Strategy Goal like Process
       nPtProX += nSep + nProWidth;
       nPtProY = nPtFBY + 40;

       shapeStrategyGoal = masterDrop.DropMasterOnPage(targetPage,
        masterProcess, stencilFlowNameU,
        nPtProX, 700 - nPtProY, "pt");

       hashStrategyGoal.Add(drEachGoal[PerspectiveGoalData.FIELD_GOALID].ToString(), shapeStrategyGoal);

       shapeStrategyGoal.Characters.Text = drEachGoal[9].ToString() + "/n权重:" + Convert.ToString(Convert.ToDecimal(drEachGoal[PerspectiveGoalData.FIELD_WEIGHTAGE].ToString()) * 100) + "%";
       shapeStrategyGoal.Characters.set_CharProps((short)Visio.VisCellIndices.visCharacterSize, 10);

       shapeStrategyGoal.get_CellsSRC((short)Visio.VisSectionIndices.visSectionObject, (short)Visio.VisRowIndices.visRowFill, (short)Visio.VisCellIndices.visFillForegnd).FormulaU = "RGB(255,153,51)";
      }
     }
    }

    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G006"], (Shape)hashStrategyGoal["G001"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G006"], (Shape)hashStrategyGoal["G002"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G006"], (Shape)hashStrategyGoal["G003"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G007"], (Shape)hashStrategyGoal["G004"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G008"], (Shape)hashStrategyGoal["G005"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G010"], (Shape)hashStrategyGoal["G006"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G010"], (Shape)hashStrategyGoal["G007"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G010"], (Shape)hashStrategyGoal["G008"]);
    connectWithDynamicGlueAndConnector(targetPage, (Shape)hashStrategyGoal["G009"], (Shape)hashStrategyGoal["G010"]);

    targetPage.CenterDrawing ();

   }
   catch (Exception err)
   {
    System.Diagnostics.Debug.WriteLine(err.Message); 
   
    return false;
   }

   return true;
  }

本文例子的完成需要安装Visio或者Visio的SDK

附件[StrategyMap.rar]：
http://blog.blogchina.com/upload/2004-11-07/20041107032214739866.rar