修改 ArcGis Engine 图层字段值

直接上代码：

/// <summary>
/// 修改空间数据库列值
/// </summary>
private void EditSdeField()
{
    //找到你的图层名
    IFeatureClass featureCls = GetFeatureClass("平衡单元");
 
    //得到该图层下有多少数据
    int featureCount = featureCls.FeatureCount(null);
 
    //查询指定列名在表中的索引
    int fieldIndex = featureCls.FindField("MAPDOCID");
 
    IDataset ds = featureCls as IDataset;
 
    IWorkspace workspace = ds.Workspace;
 
    IWorkspaceEdit edit = workspace as IWorkspaceEdit; 
    edit.StartEditing(false);
    edit.DisableUndoRedo();
 
    IFeatureCursor updateCursor = featureCls.Update(null, false);
 
    edit.StartEditOperation();
 
    IFeature feature = updateCursor.NextFeature(); 
    while (feature != null)
    { 
        feature.set_Value(fieldIndex, Guid.NewGuid().ToString("B")); 
 
        updateCursor.UpdateFeature(feature);
        feature = updateCursor.NextFeature();
    }
 
    edit.StopEditOperation();
    edit.StopEditing(true);
}
 
public IFeatureClass GetFeatureClass(string layerName)
{
    try
    {
        IFeatureWorkspace pFeatureWorkspace =
            DCIEngine.FrameWork.Global.m_pSDEWorkspace as IFeatureWorkspace;
 
        IFeatureClass pFeatureClass =
            pFeatureWorkspace.OpenFeatureClass(layerName);
 
        return pFeatureClass;
    }
    catch (Exception)
    {
        return null;
    }
}