GIS二次开发之不同类型的数据的打开显示

1．打开VS，新建C#窗体应用程序

2.拖拉容器控件：SplitContainer

 

3.向SplitContainer中添加Arcgis Windows Forms MapControl控件，并且设置其dock属性为fill

 

4.向MapControl中添加LicenseControl控件，该控件是用来为其它控件进行授权许可，运行时不会显示，因此不需设置其位置形状

 

5.此时若直接点击运行，会提示错误，原因是没有在程序运行之前添加：ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop);

 

6.解决方案就是通过双击Program.cs进入代码段，在Application.Run(new Form1());语句之前输入ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop);

 

7.此时程序可以正常运行

8.根据自己的数据使用要求，添加引用，将自己需要的数据类型都添加进去

 

9.在Form1.cs代码段前添加using引用

 

10.向容器中添加button按钮，该按钮需要实现的功能是打开矢量数据

11.在button中添加click响应事件

 1 namespace WindowsFormsApplication1
 2 {
 3     public partial class Form1 : Form
 4     {
 5         public Form1()
 6         {
 7             InitializeComponent();
 8         }
 9         OpenFileDialog open = new OpenFileDialog();
10         string allname;
11         string location;
12         string filename;
13         string ext;
14 
15         private void button1_Click(object sender, EventArgs e)
16         {
17             try
18             {
19  
20                 open.ShowDialog();
21                 allname = open.FileName;
22                 location = System.IO.Path.GetDirectoryName(allname);
23                 filename = System.IO.Path.GetFileName(allname);
24                 ext = System.IO.Path.GetExtension(allname).ToLower();/*获得打开文件的路径，文件名，后缀名*/
25                 axMapControl1.ClearLayers();
26                 if (ext == ".tif")
27                 {
28                     IWorkspaceFactory workspcFac = new RasterWorkspaceFactory();
29                     IRasterWorkspace rasterworkspc;
30                     IRasterDataset rasterDatst = new RasterDatasetClass();
31                     IRasterLayer layer = new RasterLayer();/*创建raster的相关展示控件*/
32                     rasterworkspc = workspcFac.OpenFromFile(location, 0) as IRasterWorkspace;
33                     rasterDatst = rasterworkspc.OpenRasterDataset(filename);
34                     layer.CreateFromDataset(rasterDatst);
35 
36                     axMapControl1.AddLayer(layer);
37                     axMapControl1.Refresh();
38 
39                 }
40                 if (ext == ".shp")
41                 {
42                     IWorkspaceFactory pworkspacefactory;
43                     IFeatureWorkspace pfeatureworkspace;
44                     IFeatureClass pfeatureclass;
45                     IFeatureLayer layer;/*创建shapfile的相关展示控件*/
46                     pworkspacefactory = new ShapefileWorkspaceFactoryClass();
47                     pfeatureworkspace = pworkspacefactory.OpenFromFile(location, 0) as IFeatureWorkspace;
48                     pfeatureclass = pfeatureworkspace.OpenFeatureClass(filename);
49                     layer = new FeatureLayer();
50                     layer.FeatureClass = pfeatureclass;
51                     axMapControl1.AddLayer(layer);
52                     axMapControl1.Refresh();
53                 }
54                 if (ext == ".dwg" || ext == "dxf")
55                 {
56                     CadWorkspaceFactoryClass fac = new CadWorkspaceFactoryClass();
57                     IFeatureWorkspace space = fac.OpenFromFile(location, 0) as IFeatureWorkspace;/*创建cad的相关展示控件*/
58                     IFeatureClass polyline = space.OpenFeatureClass(filename + ":polyline");
59                     IFeatureLayer layer1 = (IFeatureLayer)new CadFeatureLayer();
60                     layer1.FeatureClass = polyline;
61 
62 
63                     IFeatureClass point = space.OpenFeatureClass(filename + ":point");
64                     IFeatureLayer layer2 = (IFeatureLayer)new CadFeatureLayer();
65                     layer2.FeatureClass = point;
66 
67                     IFeatureClass polygon = space.OpenFeatureClass(filename + ":polygon");
68                     IFeatureLayer layer3 = (IFeatureLayer)new CadFeatureLayer();
69                     layer3.FeatureClass = polygon;
70 
71                     IFeatureClass anno = space.OpenFeatureClass(filename + ":Annotation");
72                     IFeatureLayer layer = (IFeatureLayer)new CadAnnotationLayer();
73                     layer.FeatureClass = anno;
74                     
75                     axMapControl1.AddLayer(layer1);
76                     axMapControl1.AddLayer(layer2);
77                     axMapControl1.AddLayer(layer3);
78 
79                     axMapControl1.AddLayer(layer);
80                     axMapControl1.Refresh();
81 
82                 }
83                 else
84                 {
85                     MessageBox.Show("该文件类型不支持打开！"); 
86                 }
87 
88             }
89             catch
90             { 
91                 MessageBox.Show("打开文件失败"); 
92             }
93 
94 
95         }