static public void delallxdata()
{
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
ObjectId id = SelectEntity();//选择实体
if (id == ObjectId.Null)
{
ed.WriteMessage("\n用户取消操作\n");
return;
}
XData xdata = new XData(id);
if (!xdata.HasXData())
{
Tools.WriteMessage("\n该实体不存在扩展数据\n");
return;
}
xdata.ClearAllXData();
xdata.UpdateXData();
}
static public void delxdataparam()
{
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
ObjectId id = SelectEntity();//选择实体
if (id == ObjectId.Null)
{
ed.WriteMessage("\n用户取消操作\n");
return;
}
XData xdata = new XData(id);
if (!xdata.HasXData())
{
Tools.WriteMessage("\n该实体不存在扩展数据\n");
return;
}
string appName = getAppName();//获取appname
if (appName == null)
{
ed.WriteMessage("\n用户取消操作\n");
return;
}
if (!XData.IsAppExist(appName))
{
Tools.WriteMessage("\n该应用程序名对应的扩展数据不存在\n");
return;
}
string param = getParam("\n请输入一个参数名称：");
if (param == null)
{
Tools.WriteMessage("\n用户取消操作\n");
return;
}
xdata.DeleteXData(param);
xdata.UpdateXData();
}
static public void addxdata()
{
bool isCreateNewXdata = false;
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
ObjectId id = SelectEntity();//选择实体
if (id == ObjectId.Null)
{
ed.WriteMessage("\n用户取消操作\n");
return;
}
XData xdata = new XData(id);
if (!xdata.HasXData())
{
Tools.WriteMessage("\n该实体不存在扩展数据\n");
isCreateNewXdata = AskForCreateXData();
if (!isCreateNewXdata)
{
Tools.WriteMessage("\n用户选择不创建新的扩展数据，程序结束\n");
return;
}
Tools.WriteMessage("\n下面的操作将会创建新的扩展数据\n");
}
string appName = getAppName();//获取appname
if (appName == null)
{
ed.WriteMessage("\n用户取消操作\n");
return;
}
string param = null;
string value = null;
bool isUserCancel = false;
if (!XData.IsAppExist(appName))
{
Tools.WriteMessage("\n该应用程序名对应的扩展数据不存在\n");
Tools.WriteMessage("\n下面的操作将会注册该应用程序名称，并添加一个新的扩展数据\n");
XData.RegisterApp(appName);
}
createNewXData(appName, ref xdata);//不管appname存在与否，调用cretaenewxdata都不会产生任何的问题
xdata.setCurrentAppName(appName);//设置当前appname
//重复循环，让用户输入扩展数据的参数和值
Tools.WriteMessage("\n继续添加数据\n");
isUserCancel = true;
param = null;
value = null;
while (isUserCancel)
{
isUserCancel = getParams(ref param, ref value);
if (param != null && value != null)
{
xdata.AddXData(param, value);//添加扩展数据，成对添加
}
}
xdata.UpdateXData();
}