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  • 如何打开磁盘上的shapefile文件

    /// <summary>
    /// Get the FeatureClass from a Shapefile on disk (hard drive).
    /// </summary>
    /// <param name="string_ShapefileDirectory">A System.String that is the directory where the shapefile is located. Example: "C:dataUSA"</param>
    /// <param name="string_ShapefileName">A System.String that is the shapefile name. Note: the shapefile extension's (.shp, .shx, .dbf, etc.) is not provided! Example: "States"</param>
    /// <returns>An IFeatureClass interface. Nothing (VB.NET) or null (C#) is returned if unsuccessful.</returns>
    /// <remarks></remarks>
    
    esri官网上抄来的文档
     1 public ESRI.ArcGIS.Geodatabase.IFeatureClass GetFeatureClassFromShapefileOnDisk(System.String string_ShapefileDirectory, System.String string_ShapefileName)
     2 {
     3 
     4     System.IO.DirectoryInfo directoryInfo_check = new System.IO.DirectoryInfo(string_ShapefileDirectory);
     5     if (directoryInfo_check.Exists)
     6     {
     7 
     8         //We have a valid directory, proceed
     9 
    10         System.IO.FileInfo fileInfo_check = new System.IO.FileInfo(string_ShapefileDirectory + "\" + string_ShapefileName + ".shp");
    11         if (fileInfo_check.Exists)
    12         {
    13 
    14             //We have a valid shapefile, proceed
    15 
    16             ESRI.ArcGIS.Geodatabase.IWorkspaceFactory workspaceFactory = new ESRI.ArcGIS.DataSourcesFile.ShapefileWorkspaceFactoryClass();
    17             ESRI.ArcGIS.Geodatabase.IWorkspace workspace = workspaceFactory.OpenFromFile(string_ShapefileDirectory, 0);
    18             ESRI.ArcGIS.Geodatabase.IFeatureWorkspace featureWorkspace = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)workspace; // Explict Cast
    19             ESRI.ArcGIS.Geodatabase.IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(string_ShapefileName);
    20 
    21             return featureClass;
    22         }
    23         else
    24         {
    25 
    26             //Not valid shapefile
    27             return null;
    28         }
    29 
    30     }
    31     else
    32     {
    33 
    34         // Not valid directory
    35         return null;
    36 
    37     }
    38     
    39 }
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  • 原文地址:https://www.cnblogs.com/353373440qq/p/3629236.html
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