在各种WorkSpace中判断要打开的文件(如:栅格,要素)是否存在

 

//IWorkspace DatasetNames Example 
public void IWorkspace_DatasetNames_Example(IWorkspace workspace)
{
    //This function asks the workspace for its feature dataset names.         
    //The names are returned as an enumeration which is cycled through and the          
    //name of each dataset is printed.         
    IEnumDatasetName enumDatasetName = workspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
    IDatasetName datasetName = enumDatasetName.Next();
    while (datasetName != null)
    {
        Console.WriteLine(datasetName.Name);
        datasetName = enumDatasetName.Next();
    }
}