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SDE连接，创建数据集，数据导入以及数据导出

分类: 文章 • 2024-05-05 17:22:03

1.界面

SDE连接，创建数据集，数据导入以及数据导出

2.数据库的连接

[csharp] view plain copy
  1. IWorkspace workspace;  
  2. IFeatureWorkspace featureWorkspace;  
  3. IRasterWorkspaceEx rasterWorkspaceEx;  
  4. IFeatureDataset featureDataset;  
  5. IRasterDataset rasterDataset;  
  6. IPropertySet propertySet;  
  7. private void btnConnectDB_Click(object sender, EventArgs e)  
  8. {  
  9.     propertySet = new PropertySetClass();  
  10.     propertySet.SetProperty("server", "Toby-PC");  
  11.     propertySet.SetProperty("instance", "5151/tcp");  
  12.     propertySet.SetProperty("database", "sde");  
  13.     propertySet.SetProperty("user", "sde");  
  14.     propertySet.SetProperty("password", "Toby521904");  
  15.     propertySet.SetProperty("version", "SDE.DEFAULT");  
  16.     IWorkspaceFactory workspaceFactory =new SdeWorkspaceFactory();  
  17.     workspace = workspaceFactory.Open(propertySet, 0);  
  18.     MessageBox.Show("连接成功");  
  19.     
  20. }  

3.创建数据集

[csharp] view plain copy
  1. private void btnCreateDataSet_Click(object sender, EventArgs e)  
  2.     {  
  3.         if (this.txtRasterDS.Text != "" || this.txtFeatureDS.Text != "")  
  4.         {  
  5.             featureWorkspace = workspace as IFeatureWorkspace;  
  6.             rasterWorkspaceEx = workspace as IRasterWorkspaceEx;  
  7.             IEnumDatasetName enumDatasetName;  
  8.             bool isExit = false;  
  9.             IDatasetName datasetName;  
  10.             string dsName = "";  
  11.             if (this.txtFeatureDS.Text != "")  
  12.             {  
  13.                 //定义空间参考  
  14.                 ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass();  
  15.                 ISpatialReference spatialReference = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_Beijing1954);  
  16.                 spatialReference.SetDomain(-1000, -1000, 1000, 1000);  
  17.                 enumDatasetName = workspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);  
  18.                 datasetName = enumDatasetName.Next();  
  19.                 isExit = false;  
  20.                 dsName = "sde.SDE." + this.txtFeatureDS.Text;  
  21.                 while (datasetName != null)  
  22.                 {  
  23.                     if (datasetName.Name == dsName)  
  24.                     {  
  25.                         isExit = true;  
  26.                         MessageBox.Show("矢量数据集已经存在！");  
  27.                         this.txtFeatureDS.Focus();  
  28.                         return;  
  29.                     }  
  30.                     datasetName = enumDatasetName.Next();  
  31.                 }  
  32.                 if (isExit == false)  
  33.                 {  
  34.                     featureDataset = featureWorkspace.CreateFeatureDataset(this.txtFeatureDS.Text, spatialReference);  
  35.                 }  
  36.                 MessageBox.Show("矢量数据集创建成功");  
  37.             }  
  38.             if (this.txtRasterDS.Text != "")  
  39.             {  
  40.                 //创建影像数据集；  
  41.                 isExit = false;  
  42.                 enumDatasetName = workspace.get_DatasetNames(esriDatasetType.esriDTRasterDataset);  
  43.                 datasetName = enumDatasetName.Next();  
  44.                 dsName = "SDE." + this.txtRasterDS.Text;  
  45.                 while (datasetName != null)  
  46.                 {  
  47.                     if (datasetName.Name == dsName)  
  48.                     {  
  49.                         isExit = true;  
  50.                         MessageBox.Show("矢量数据集已经存在！");  
  51.                         break;  
  52.                     }  
  53.                     datasetName = enumDatasetName.Next();  
  54.                 }  
  55.                 if (isExit == false)  
  56.                 {  
  57.                     IRasterStorageDef rasterStorageDef = new RasterStorageDefClass();  
  58.                     rasterStorageDef.CompressionType = esriRasterCompressionType.esriRasterCompressionUncompressed;  
  59.                     rasterStorageDef.PyramidLevel = 1;  
  60.                     rasterStorageDef.PyramidResampleType = rstResamplingTypes.RSP_BilinearInterpolation;  
  61.                     rasterStorageDef.TileHeight = 128;  
  62.                     rasterStorageDef.TileWidth = 128;  
  63.                     IRasterDef rasterDef = new RasterDefClass();  
  64.                     ISpatialReference rasterDSpatialReference = new UnknownCoordinateSystemClass();  
  65.                     rasterDef.SpatialReference = rasterDSpatialReference;  
  66.                     IGeometryDef geometryDef = new GeometryDefClass();  
  67.                     IGeometryDefEdit geometryDefEdit = (IGeometryDefEdit)geometryDef;  
  68.                     geometryDefEdit.AvgNumPoints_2 = 5;  
  69.                     geometryDefEdit.GridCount_2 = 1;  
  70.                     geometryDefEdit.set_GridSize(0, 1000);  
  71.                     geometryDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolygon;  
  72.                     ISpatialReference spatialReference2 = new UnknownCoordinateSystemClass();  
  73.                     geometryDefEdit.SpatialReference_2 = spatialReference2;  
  74.                     rasterDataset = rasterWorkspaceEx.CreateRasterDataset(this.txtRasterDS.Text, 1, rstPixelType.PT_LONG, rasterStorageDef, "DEFAULTS", rasterDef, geometryDef);  
  75.                     MessageBox.Show("栅格数据集创建成功");  
  76.                 }  
  77.             }  
  78.         }  
  79.     }<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"> </span>  

4.矢量数据直接导入sde

[csharp] view plain copy
  1. private void importFToSDE_Click(object sender, EventArgs e)  
  2.     {  
  3.         try  
  4.         {  
  5.             IDataset pDataSet = workspace as IDataset;  
  6.             this.openFileDialog1.Filter = "shp file(*.shp)|*.shp";  
  7.             this.openFileDialog1.Title = "打开矢量数据";  
  8.             this.openFileDialog1.Multiselect = false;  
  9.             string fileName = "";  
  10.             if (this.openFileDialog1.ShowDialog() == DialogResult.OK)  
  11.             {  
  12.                 fileName = this.openFileDialog1.FileName;  
  13.                 FileInfo fileInfo = new FileInfo(fileName);  
  14.                 string filePath = fileInfo.DirectoryName;  
  15.                 string file = fileInfo.Name;  
  16.                 FeatureClassToFeatureClass(pDataSet, filePath, file, "dddd", true);  
  17.             }  
  18.             MessageBox.Show("导入成功");  
  19.         }  
  20.         catch (Exception ee)  
  21.         {  
  22.             MessageBox.Show(ee.ToString());  
  23.         }   
  24.     }  

[csharp] view plain copy
  1. public void FeatureClassToFeatureClass(IDataset pDataSet, string strFeatFileDir, string strFeatFileName, string strOutName, bool isWorkspace)  
  2. {  
  3.     try  
  4.     {  
  5.         IWorkspaceFactory pWSF = new ShapefileWorkspaceFactoryClass();  
  6.         IFeatureWorkspace pFeatureWK = (IFeatureWorkspace)pWSF.OpenFromFile(strFeatFileDir, 0);  
  7.         IFeatureClass pInFeatureClass = pFeatureWK.OpenFeatureClass(strFeatFileName);  
  8.         if (pInFeatureClass == null || pDataSet == null)  
  9.         {  
  10.             MessageBox.Show("创建失败");  
  11.             return;  
  12.         }  
  13.         IFeatureClassName pInFeatureclassName;  
  14.         IDataset pIndataset = (IDataset)pInFeatureClass;  
  15.         pInFeatureclassName = (IFeatureClassName)pIndataset.FullName;  
  16.         //如果名称已存在  
  17.         IWorkspace2 pWS2 = null;  
  18.         if (isWorkspace)  
  19.             pWS2 = pDataSet as IWorkspace2;  
  20.         else  
  21.             pWS2 = pDataSet.Workspace as IWorkspace2;  
  22.         if (pWS2.get_NameExists(esriDatasetType.esriDTFeatureClass, strOutName))  
  23.         {  
  24.             DialogResult result;  
  25.             result = System.Windows.Forms.MessageBox.Show(null, "矢量文件名  " + strOutName + "  在数据库中已存在!" + "/r是否覆盖?", "相同文件名", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);  
  26.             //覆盖原矢量要素  
  27.             if (result == DialogResult.Yes)  
  28.             {  
  29.                 IFeatureWorkspace pFWS = (IFeatureWorkspace)pWS2;  
  30.                 IDataset pDataset = pFWS.OpenFeatureClass(strOutName) as IDataset;  
  31.                 pDataset.Delete();  
  32.                 pDataset = null;  
  33.             }  
  34.         }  
  35.         IFields pInFields, pOutFields;  
  36.         IFieldChecker pFieldChecker = new FieldCheckerClass();  
  37.         IEnumFieldError pError;  
  38.         pInFields = pInFeatureClass.Fields;  
  39.         pFieldChecker.Validate(pInFields, out pError, out pOutFields);  
  40.         IField geoField = null;  
  41.         for (int i = 0; i < pOutFields.FieldCount; i++)  
  42.         {  
  43.             IField pField = pOutFields.get_Field(i);  
  44.             if (pField.Type == esriFieldType.esriFieldTypeOID)  
  45.             {  
  46.                 IFieldEdit pFieldEdit = (IFieldEdit)pField;  
  47.                 pFieldEdit.Name_2 = pField.AliasName;  
  48.             }  
  49.             if (pField.Type == esriFieldType.esriFieldTypeGeometry)  
  50.             {  
  51.                 geoField = pField;  
  52.                 break;  
  53.             }  
  54.         }  
  55.         IGeometryDef geometryDef = geoField.GeometryDef;  
  56.         IFeatureDataConverter one2another = new FeatureDataConverterClass();  
  57.         IFeatureClassName pOutFeatureClassName = new FeatureClassNameClass();  
  58.         IDatasetName pOutDatasetName = (IDatasetName)pOutFeatureClassName;  
  59.         if (isWorkspace)  
  60.             pOutDatasetName.WorkspaceName = (IWorkspaceName)pDataSet.FullName;  
  61.         else  
  62.             pOutDatasetName.WorkspaceName = (IWorkspaceName)((IDataset)pDataSet.Workspace).FullName;  
  63.         pOutDatasetName.Name = strOutName;  
  64.         if (isWorkspace)  
  65.         {  
  66.             one2another.ConvertFeatureClass(pInFeatureclassName, null, null, pOutFeatureClassName, geometryDef, pOutFields, "", 1000, 0);  
  67.         }  
  68.         else  
  69.         {  
  70.             IFeatureDataset pFeatDS = (IFeatureDataset)pDataSet;  
  71.             IFeatureDatasetName pOutFeatDSName = pFeatDS.FullName as IFeatureDatasetName;  
  72.             one2another.ConvertFeatureClass(pInFeatureclassName, null, pOutFeatDSName, pOutFeatureClassName, geometryDef, pOutFields, "", 1000, 0);  
  73.             pOutFeatDSName = null;  
  74.             pFeatDS = null;  
  75.         }  
  76.     }  
  77.     catch (Exception ex)  
  78.     {  
  79.         MessageBox.Show(ex.Message);  
  80.         return;  
  81.     }  
  82. }  

5.矢量数据导入sde数据集

       
[csharp] view plain copy
  1. private void importF_Click(object sender, EventArgs e)  
  2.     {  
  3.         featureWorkspace = workspace as IFeatureWorkspace;  
  4.         this.openFileDialog1.Filter = "shp file(*.shp)|*.shp";  
  5.         this.openFileDialog1.Title = "打开矢量数据";  
  6.         this.openFileDialog1.Multiselect = false;  
  7.         string fileName = "";  
  8.         if (this.openFileDialog1.ShowDialog() == DialogResult.OK)  
  9.         {  
  10.             fileName = this.openFileDialog1.FileName;  
  11.             FileInfo fileInfo = new FileInfo(fileName);  
  12.             string filePath = fileInfo.DirectoryName;  
  13.             string file = fileInfo.Name;  
  14.             IWorkspaceFactory shpwpf = new ShapefileWorkspaceFactory();  
  15.             IWorkspace shpwp = shpwpf.OpenFromFile(filePath, 0);  
  16.             IFeatureWorkspace shpfwp = shpwp as IFeatureWorkspace;  
  17.             IFeatureClass shpfc = shpfwp.OpenFeatureClass(file);  
  18.             //导入SDE数据库  
  19.             IFeatureClass sdeFeatureClass = null;  
  20.             IFeatureClassDescription featureClassDescription = new FeatureClassDescriptionClass();  
  21.             IObjectClassDescription objectClassDescription = featureClassDescription as IObjectClassDescription;  
  22.             IFields fields = shpfc.Fields;  
  23.             IFieldChecker fieldChecker = new FieldCheckerClass();  
  24.             IEnumFieldError enumFieldError = null;  
  25.             IFields vFields = null;  
  26.             fieldChecker.ValidateWorkspace = featureWorkspace as IWorkspace;  
  27.             fieldChecker.Validate(fields,out enumFieldError,out vFields);  
  28.             featureDataset = featureWorkspace.OpenFeatureDataset(this.txtFeatureDS.Text);  
  29.             try  
  30.             {  
  31.                 sdeFeatureClass = featureWorkspace.OpenFeatureClass(shpfc.AliasName);  
  32.             }  
  33.             catch  
  34.             {  
  35.                  
  36.             }  
  37.             if (sdeFeatureClass == null)  
  38.             {  
  39.                 sdeFeatureClass = featureDataset.CreateFeatureClass(shpfc.AliasName, vFields,  
  40.                     objectClassDescription.InstanceCLSID, objectClassDescription.ClassExtensionCLSID,  
  41.                     shpfc.FeatureType, shpfc.ShapeFieldName, "");  
  42.                 IFeatureCursor featureCursor = shpfc.Search(null, true);  
  43.                 IFeature feature = featureCursor.NextFeature();  
  44.                 IFeatureCursor sdeFeatureCursor = sdeFeatureClass.Insert(true);  
  45.                 IFeatureBuffer sdeFeatureBuffer;  
  46.                 while (feature != null)  
  47.                 {  
  48.                     sdeFeatureBuffer = sdeFeatureClass.CreateFeatureBuffer();  
  49.                     IField shpField = new FieldClass();  
  50.                     IFields shpFields = feature.Fields;  
  51.                     for (int i = 0; i < shpFields.FieldCount; i++)  
  52.                     {  
  53.                         shpField = shpFields.get_Field(i);  
  54.                         int index = sdeFeatureBuffer.Fields.FindField(shpField.Name);  
  55.                         if (index != -1)  
  56.                         {  
  57.                             sdeFeatureBuffer.set_Value(index, feature.get_Value(i));  
  58.                         }  
  59.                     }  
  60.                     sdeFeatureCursor.InsertFeature(sdeFeatureBuffer);  
  61.                     sdeFeatureCursor.Flush();  
  62.                     feature = featureCursor.NextFeature();  
  63.                 }  
  64.             }  
  65.         }  
  66.         MessageBox.Show("导入成功");  
  67.     }  

6.导入栅格数据

 
[csharp] view plain copy
  1. private void importR_Click(object sender, EventArgs e)  
  2.     {  
  3.         this.openFileDialog1.Filter = "Imag file (*.img)|*.img";  
  4.         this.openFileDialog1.Title = "打开影像数据";  
  5.         this.openFileDialog1.Multiselect = false;  
  6.         string fileName = "";  
  7.         if (this.openFileDialog1.ShowDialog() == DialogResult.OK)  
  8.         {  
  9.             fileName = this.openFileDialog1.FileName;  
  10.             string filepath;  
  11.             string file;  
  12.             string file1;  
  13.             int lastIndex;  
  14.             lastIndex = fileName.LastIndexOf(@"");  
  15.             filepath = fileName.Substring(0, lastIndex);  
  16.             file = fileName.Substring(lastIndex + 1);  
  17.             //导入SDE数据库  
  18.             rasterWorkspaceEx = workspace as IRasterWorkspaceEx;  
  19.             IWorkspaceFactory tifwpf = new RasterWorkspaceFactoryClass();  
  20.             IWorkspace tifwp = tifwpf.OpenFromFile(filepath, 0);  
  21.             IRasterWorkspace tifrwp = tifwp as IRasterWorkspace;  
  22.             IRasterDataset rasterDataset = tifrwp.OpenRasterDataset(file);  
  23.             lastIndex = file.LastIndexOf(@".");  
  24.             file1 = file.Substring(0, lastIndex);  
  25.             imortRasterData(filepath, file, file1);  
  26.             MessageBox.Show("导入成功");  
  27.         }  
  28.     }  


[csharp] view plain copy
  1. private void imortRasterData(string strRasterFileDir, string strRasterFileName, string strOutName)  
  2.     {  
  3.         try  
  4.         {  
  5.             //判断是否有重名现象  
  6.             IWorkspace2 pWS2 = workspace as IWorkspace2;  
  7.             //如果名称已存在  
  8.             if (pWS2.get_NameExists(esriDatasetType.esriDTRasterDataset, strOutName))  
  9.             {  
  10.                 DialogResult result;  
  11.                 result = MessageBox.Show(this, "栅格文件名  " + strOutName + "  在数据库中已存在!" + "\r是否覆盖?", "相同文件名", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);  
  12.                 //覆盖原矢量要素  
  13.                 if (result == DialogResult.Yes)  
  14.                 {  
  15.                     IRasterWorkspaceEx pRWs = workspace as IRasterWorkspaceEx;  
  16.                     IDataset pDataset = pRWs.OpenRasterDataset(strOutName) as IDataset;  
  17.                     pDataset.Delete();  
  18.                     pDataset = null;  
  19.                 }  
  20.                 else if (result == DialogResult.No)  
  21.                 {  
  22.                     return;  
  23.                 }  
  24.             }  
  25.             IWorkspaceFactory pRasterWsFac = new RasterWorkspaceFactoryClass();  
  26.             IWorkspace pWs = pRasterWsFac.OpenFromFile(strRasterFileDir, 0);  
  27.             IRasterDataset pRasterDs = null;  
  28.             IRasterWorkspace pRasterWs;  
  29.             if (!(pWs is IRasterWorkspace))  
  30.             {  
  31.                 return;  
  32.             }  
  33.             pRasterWs = pWs as IRasterWorkspace;  
  34.             pRasterDs = pRasterWs.OpenRasterDataset(strRasterFileName);  
  35.             ISaveAs2 saveAs2 = (ISaveAs2)pRasterDs;  
  36.             IRasterStorageDef rasterStorageDef = new RasterStorageDefClass();  
  37.             IRasterStorageDef2 rasterStorageDef2 = (IRasterStorageDef2)rasterStorageDef;  
  38.             rasterStorageDef2.CompressionType =esriRasterCompressionType.esriRasterCompressionUncompressed;  
  39.             rasterStorageDef2.CompressionQuality = 100;  
  40.             rasterStorageDef2.Tiled = true;  
  41.             rasterStorageDef2.TileHeight = 128;  
  42.             rasterStorageDef2.TileWidth = 128;  
  43.             saveAs2.SaveAsRasterDataset(strOutName, workspace, "gdb", rasterStorageDef2);  
  44.         }  
  45.         catch (Exception ex)  
  46.         {  
  47.             MessageBox.Show(ex.ToString());  
  48.             return;  
  49.         }  
  50.     }  
 

7.从SDE中读取数据

[csharp] view plain copy
  1. private void ReadFromSDE_Click(object sender, EventArgs e)  
  2.     {  
  3.         this.cbbDataSet.Items.Clear();  
  4.         this.FeatureLayer.Items.Clear();  
  5.         this.RasterLayer.Items.Clear();  
  6.         IEnumDatasetName enumDatasetName;  
  7.         IDatasetName datasetName;  
  8.         //获取矢量数据集  
  9.         enumDatasetName = workspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);  
  10.         datasetName = enumDatasetName.Next();  
  11.         while (datasetName != null)  
  12.         {  
  13.             this.cbbDataSet.Items.Add(datasetName.Name);  
  14.             datasetName = enumDatasetName.Next();  
  15.         }  
  16.         //获取图层名  
  17.         enumDatasetName=workspace.get_DatasetNames(esriDatasetType.esriDTFeatureClass);  
  18.         datasetName = enumDatasetName.Next();  
  19.         while (datasetName != null)  
  20.         {  
  21.             this.FeatureLayer.Items.Add(datasetName.Name);  
  22.             datasetName = enumDatasetName.Next();  
  23.         }  
  24.         //获取栅格图层名  
  25.         enumDatasetName = workspace.get_DatasetNames(esriDatasetType.esriDTRasterDataset);  
  26.         datasetName = enumDatasetName.Next();  
  27.         while (datasetName != null)  
  28.         {  
  29.             this.RasterLayer.Items.Add(datasetName.Name);  
  30.             datasetName = enumDatasetName.Next();  
  31.         }  
  32.         MessageBox.Show("读取成功");  
  33.     }  

8.遍历数据集中的文件

[csharp] view plain copy
  1. private void cbbDataSet_TextChanged(object sender, EventArgs e)  
  2.     {  
  3.         this.FeatureLayer.Items.Clear();  
  4.         IDataset dataset;  
  5.         IEnumDataset enumDataset;  
  6.         enumDataset = workspace.get_Datasets(esriDatasetType.esriDTFeatureDataset);  
  7.         dataset = enumDataset.Next();  
  8.         IDataset pDataset = null;  
  9.         while (dataset != null)  
  10.         {  
  11.             if (dataset.Name == this.cbbDataSet.Text)  
  12.             {  
  13.                 pDataset = dataset as IDataset;  
  14.                 break;  
  15.             }  
  16.             dataset = enumDataset.Next();  
  17.         }  
  18.         IFeatureDataset featDs = pDataset as IFeatureDataset;  
  19.         IFeatureClassContainer fcContainer = featDs as IFeatureClassContainer;  
  20.         for (int i = 0; i < fcContainer.ClassCount; i++)  
  21.         {  
  22.             this.FeatureLayer.Items.Add(fcContainer.get_Class(i).AliasName);  
  23.         }  
  24.     }  

9.数据的加载

[csharp] view plain copy
  1. private void btnOk_Click(object sender, EventArgs e)  
  2.     {  
  3.         //直接从sde中读取数据.  
  4.         if (this.FeatureLayer.Text != "" && this.cbbDataSet.Text == "")  
  5.         {  
  6.             IEnumDataset enumDataset;  
  7.             IDataset dataset;  
  8.             IFeatureLayer pFeatureLayer=new FeatureLayerClass();  
  9.             //获取图层名  
  10.             enumDataset = workspace.get_Datasets(esriDatasetType.esriDTFeatureClass);  
  11.             dataset = enumDataset.Next();  
  12.             while (dataset != null)  
  13.             {  
  14.                 if (dataset.Name.ToLower() == this.FeatureLayer.Text.ToLower())  
  15.                 {  
  16.                     pFeatureLayer.FeatureClass = dataset as IFeatureClass;  
  17.                     break;  
  18.                 }  
  19.                 dataset = enumDataset.Next();  
  20.             }  
  21.             this.axMapControl1.AddLayer(pFeatureLayer as ILayer);  
  22.             this.axMapControl1.Extent = this.axMapControl1.FullExtent;  
  23.         }  
  24.         // 从sde数据集中读取数据  
  25.         if (this.FeatureLayer.Text != "" && this.cbbDataSet.Text != "")  
  26.         {  
  27.             IDataset dataset;  
  28.             IEnumDataset enumDataset;  
  29.             enumDataset = workspace.get_Datasets(esriDatasetType.esriDTFeatureDataset);  
  30.             dataset = enumDataset.Next();  
  31.             IDataset pDataset = null;  
  32.             while (dataset != null)  
  33.             {  
  34.                 if (dataset.Name == this.cbbDataSet.Text)  
  35.                 {  
  36.                     pDataset = dataset as IDataset;  
  37.                     break;  
  38.                 }  
  39.                 dataset = enumDataset.Next();  
  40.             }  
  41.             IFeatureDataset featDs = pDataset as IFeatureDataset;  
  42.             IFeatureLayer pFeatureLayer = new FeatureLayerClass();  
  43.             IFeatureClassContainer fcContainer = featDs as IFeatureClassContainer;  
  44.             for (int i = 0; i < fcContainer.ClassCount; i++)  
  45.             {  
  46.                 if (fcContainer.get_Class(i).AliasName.ToLower() == this.FeatureLayer.Text.ToLower())  
  47.                 {  
  48.                     pFeatureLayer.FeatureClass = fcContainer.get_Class(i) as IFeatureClass;  
  49.                     break;  
  50.                 }  
  51.                 //this.FeatureLayer.Items.Add(fcContainer.get_Class(i).AliasName);  
  52.             }  
  53.             this.axMapControl1.AddLayer(pFeatureLayer as ILayer);  
  54.             this.axMapControl1.Extent = this.axMapControl1.FullExtent;  
  55.         }  
  56.         //加载栅格数据  
  57.         if (this.RasterLayer.Text != "")  
  58.         {  
  59.             IDataset dataset;  
  60.             IEnumDataset enumDataset;  
  61.             enumDataset = workspace.get_Datasets(esriDatasetType.esriDTRasterDataset);  
  62.             dataset = enumDataset.Next();  
  63.             IDataset pDataset = null;  
  64.             while (dataset != null)  
  65.             {  
  66.                 if (dataset.Name.ToLower() == this.RasterLayer.Text.ToLower())  
  67.                 {  
  68.                     pDataset = dataset as IDataset;  
  69.                     break;  
  70.                 }  
  71.                 dataset = enumDataset.Next();  
  72.             }  
  73.             IRasterDataset pRasterDataset = dataset as IRasterDataset;  
  74.             IRasterLayer pRasLyr=new RasterLayerClass();  
  75.             pRasLyr.CreateFromDataset(pRasterDataset);  
  76.             this.axMapControl1.AddLayer(pRasLyr as ILayer);  
  77.             this.axMapControl1.Extent = this.axMapControl1.FullExtent;  
  78.         }  
  79.         MessageBox.Show("加载成功");  
  80.     }  

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