backup2

/// <summary>
/// 先在窗体上添加LicenceControl控件
/// Enable 3D analysis
/// </summary>
public void Enable3DAnalysis()
{
    ESRI.ArcGIS.esriSystem.IExtensionManagerAdmin iExtensionManagerAdmin = new ESRI.ArcGIS.esriSystem.ExtensionManagerClass();
    UID iUid3D = new UIDClass();
    iUid3D.Value = "{94305472-592E-11D4-80EE-00C04FA0ADF8}";
    object o = new object();
    iExtensionManagerAdmin.AddExtension(iUid3D, ref o);
    IExtensionConfig iExtensionConfig = (IExtensionConfig)(iExtensionManagerAdmin as IExtensionManager).FindExtension(iUid3D);
    iExtensionConfig.State = esriExtensionState.esriESEnabled;
}