工作空间工厂打开文件例子

最新推荐文章于 2025-05-20 09:40:15 发布

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最新推荐文章于 2025-05-20 09:40:15 发布

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本文提供了使用ArcGIS API通过不同数据源（包括Access、FileGDB、ArcSDE和Shapefile）打开工作空间的代码示例。每个示例展示了如何通过指定的数据源工厂类实例化并打开特定类型的工作空间。

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//IWorkspaceFactory OpenFromFile Example

    //e.g., nameOfFile = "E:\\data\\english\\access\\canada\\canada.mdb"
    public IWorkspace IWorkspaceFactory_OpenFromFile_Example_Access(string nameOfFile)
    {
        IWorkspaceFactory workspaceFactory= new ESRI.ArcGIS.DataSourcesGDB.AccessWorkspaceFactoryClass();
        return workspaceFactory.OpenFromFile(nameOfFile, 0);
    }

    //e.g., nameOfFile = "E:\\data\\english\\FileGDB\\canada\\canada.gdb"
    public IWorkspace IWorkspaceFactory_OpenFromFile_Example_FileGDB(string nameOfFile)
    {
        IWorkspaceFactory workspaceFactory = new ESRI.ArcGIS.DataSourcesGDB.FileGDBWorkspaceFactoryClass();
        return workspaceFactory.OpenFromFile(nameOfFile, 0);
    }

    //e.g., nameOfFile = "D:\\data\\redarrow.sde"
    public IWorkspace IWorkspaceFactory_OpenFromFile_Example_ArcSDE(string nameOfFile)
    {
        IWorkspaceFactory workspaceFactory = new ESRI.ArcGIS.DataSourcesGDB.SdeWorkspaceFactoryClass();
        return workspaceFactory.OpenFromFile(nameOfFile, 0);
    }

    //The connection string for a shapefile should be the full path
    //to the Shapefile's folder (e.g., "C:\\temp")
    // Note: location cannot be relative path ".\\temp" it must be an explicit pathname
    public IWorkspace IWorkspaceFactory_OpenFromFile_Example_Shapefile(string nameOfFile)
    {
        IWorkspaceFactory workspaceFactory = new ESRI.ArcGIS.DataSourcesFile.ShapefileWorkspaceFactoryClass();
        return workspaceFactory.OpenFromFile(nameOfFile, 0);
    }