ZWCAD 读取内容提示 ARX Error：eLockViolation

 

DocumentLock lockDocument = null;
try
{
//为空时，打开当前活动文档
if (acDoc == null)
{
DocumentCollection acDocs = ZwSoft.ZwCAD.ApplicationServices.Application.DocumentManager;
//图号和零件清单
Dictionary<String, DrawFileInfo> PartInfos = new Dictionary<string, DrawFileInfo>();
acDoc = acDocs.MdiActiveDocument;
}
log.Info("\n" + "进入方法: ReadBomTitle...");
//1、建立基础版和机械版链接
log.Info("\n" + "1、建立基础版和机械版链接...");
if (PublicOperateZWcom.m_cadApp != null && m_objZwmApp == null)
{
m_objZwmApp = (ZwmToolKitLib.ZwmApp)PublicOperateZWcom.m_cadApp.GetInterfaceObject("ZwmToolKit.ZwmApp");
m_objZwmApp.GetDb(out m_objZwmDb);
if (m_objZwmApp == null)
{
MessageBox.Show("创建 ZwmToolKit.ZwmApp 失败！请检查机械软件启动是否正常");
return null;
}
}
acDoc.LockDocument();

。。。。。。。。。。。。

}
finally
{
if (lockDocument != null)
{
lockDocument.Dispose();
}
}