获取数据库中的要素类

在ArcGIS Engine中，要得到某一个类，首要要获取工作空间，然后进入工作空间再得到相应的东西，我
们定义一个函数用来获取个人数据库的路径
public  string  WsPath()
        {
 
            string WsFileName="";
 
            OpenFileDialog OpenFile = new OpenFileDialog();
 
            OpenFile.Filter = "个人数据库(MDB)|*.mdb";
 
            DialogResult DialogR = OpenFile.ShowDialog();
 
            if (DialogR == DialogResult.Cancel)
            {
               
            }
            else
            {
 
                WsFileName = OpenFile.FileName;
            }
 
 
            return WsFileName;
           
        }
要获取要素类，首先要进入
private void button2_Click(object sender, EventArgs e)
        {
                 string WsName = WsPath();
 
            if (WsName != "")
            {
 
                IWorkspaceFactory pWsFt = new AccessWorkspaceFactoryClass();
 
                IWorkspace pWs = pWsFt.OpenFromFile(WsName, 0);
 
                IEnumDataset pEDataset = pWs.get_Datasets(esriDatasetType.esriDTAny);
 
                IDataset pDataset = pEDataset.Next();
 
                while (pDataset != null)
                {
                    if (pDataset.Type ==esriDatasetType.esriDTFeatureClass)
                    {
                        FeatureClassBox.Items.Add(pDataset.Name);
                    }
                       //如果是数据集
                    else if (pDataset.Type == esriDatasetType.esriDTFeatureDataset)
                    {
                        IEnumDataset pESubDataset = pDataset.Subsets;
 
                        IDataset pSubDataset = pESubDataset.Next();
 
                        while (pSubDataset != null)
                        {
                            FeatureClassBox.Items.Add(pSubDataset.Name);
 
                            pSubDataset = pESubDataset.Next();
                        }
                    }
                   
 
 
                    pDataset = pEDataset.Next();
                }
 
            }
 
            FeatureClassBox.Text = FeatureClassBox.Items[0].ToString();
}

判断要素是否被编辑
IDatasetEdit.IsBeingEdited