实例介绍
【实例截图】
【核心代码】
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | /// <summary> /// Generates tree data randomely on the fly. /// In real life this function would be used to get the data from the DB. /// </summary> /// <param name="topID"></param> /// <returns></returns> private TreeGenerator.TreeData.TreeDataTableDataTable GetDT( string topID) { TreeGenerator.TreeData.TreeDataTableDataTable Result = new TreeData.TreeDataTableDataTable(); //add the parent Result.AddTreeDataTableRow(topID, "" , topID, "" ); Random r = new Random(); int childCount = r.Next(4); string childName; for ( int i=0;i<=childCount;i ) { //randomely add some children childName = topID "-" i.ToString(); Result.AddTreeDataTableRow(childName, topID, childName, "" ); } return Result; } /// <summary> /// Show the Tree based on what the user clicked /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void btnShowBOM_Click( object sender, EventArgs e) { if (txtItem.Text.Trim().Length > 0) { GenerateChart(txtItem.Text); } } /// <summary> /// This is called based on where the user clicked on the imagemap /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void impBOM_Click( object sender, ImageMapEventArgs e) { GenerateChart(e.PostBackValue); } /// <summary> /// Generate the chart image and save it in the cache, to be used by the image.aspx /// </summary> private void GenerateChart( string mItem) { //crate the chart object TreeGenerator.TreeBuilder currentBOM = new TreeGenerator.TreeBuilder(GetDT(mItem)); //specify visual properties currentBOM.HorizontalSpace = 15; currentBOM.VerticalSpace = 15; currentBOM.FontSize = 7; currentBOM.BoxHeight = 80; currentBOM.BoxWidth = 80; currentBOM.LineColor = System.Drawing.ColorTranslator.FromHtml( "#BFBFC9" ); currentBOM.FontColor = System.Drawing.ColorTranslator.FromHtml( "#3B4164" ); System.Drawing.Image OC = System.Drawing.Image.FromStream(currentBOM.GenerateTree(mItem, System.Drawing.Imaging.ImageFormat.Bmp)); string nameOfImage = Session.SessionID "CurrentImage" ; //save in the cache, to be used by the page creating the image Cache.Insert(nameOfImage, OC, null , DateTime.MaxValue, TimeSpan.FromMinutes(1), CacheItemPriority.NotRemovable, null ); //update the item image map //supply the image name by querystring impBOM.ImageUrl = "~/OrgChartImage.aspx?ID=" nameOfImage; //remove all hotspots impBOM.HotSpots.Clear(); //regenerate the hotspots. foreach (XmlNode oNode in currentBOM.xmlTree.SelectNodes( "//Node" )) { RectangleHotSpot RectHS = new RectangleHotSpot(); RectHS.HotSpotMode = HotSpotMode.PostBack; Rectangle currentRect = currentBOM.getRectangleFromNode(oNode); RectHS.Top = currentRect.Top; RectHS.Bottom = currentRect.Bottom; RectHS.Left = currentRect.Left; RectHS.Right = currentRect.Right; RectHS.PostBackValue = oNode.Attributes[ "nodeID" ].InnerText; RectHS.AlternateText = oNode.Attributes[ "nodeDescription" ].InnerText; impBOM.HotSpots.Add(RectHS); //SelectedEmployee = EmpRec.EmployeeData.EmployeeName; } } |
标签: GDI
相关软件
小贴士
感谢您为本站写下的评论,您的评论对其它用户来说具有重要的参考价值,所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字,对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙,所以请不要反馈意义不大的重复字符,也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明,或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦,又没人会搭理,于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享,对搜索内容的合法性不具有预见性、识别性、控制性,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论平台是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定,若资源存在侵权或相关问题请联系本站客服人员,点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论