修改Shp文件名称

IWorkspaceFactory factory = new ShapefileWorkspaceFactoryClass();
IWorkspace pworkspace = factory.OpenFromFile(xmlOutDir, 0);
IEnumDataset datasetenum = pworkspace.get_Datasets(esriDatasetType.esriDTFeatureClass); //筛选出shp
IDataset shpdataset = datasetenum.Next(); //获取的数据集名称无后缀名
while (shpdataset != null)
{
if (shpdataset.Name.ToLower().Equals(System.IO.Path.GetFileNameWithoutExtension(rasterToPolygonResultName.ToLower()))) 
{
shpdataset.Rename(shpNameWithoutExtention); //不能带后缀名
break;
}
shpdataset = datasetenum.Next();
}