https://forums.autodesk.com/t5/net-forum/handle-isnull/m-p/1749667#M80583 Hi, <BR /> I just found the Handle.isNull does not exposed in .NET. then how I can check if a handle == null? <BR /> Handle.ToString() == "" <BR /> or <BR /> Handle.ToString() == "0"<BR /> which one is correct ? <BR /> <BR /> <BR /> <BR /> Thank you, <BR /> Wes Tue, 29 Aug 2006 18:13:35 GMT wesbird 2006-08-29T18:13:35Z https://forums.autodesk.com/t5/net-forum/handle-isnull/m-p/1749667#M80583 Hi, <BR /> I just found the Handle.isNull does not exposed in .NET. then how I can check if a handle == null? <BR /> Handle.ToString() == "" <BR /> or <BR /> Handle.ToString() == "0"<BR /> which one is correct ? <BR /> <BR /> <BR /> <BR /> Thank you, <BR /> Wes Tue, 29 Aug 2006 18:13:35 GMT https://forums.autodesk.com/t5/net-forum/handle-isnull/m-p/1749667#M80583 wesbird 2006-08-29T18:13:35Z https://forums.autodesk.com/t5/net-forum/handle-isnull/m-p/1749668#M80584 Handle.Value == 0<BR /> <BR /> -- <BR /> http://www.caddzone.com<BR /> <BR /> AcadXTabs: MDI Document Tabs for AutoCAD 2004/2005/2006/2007<BR /> http://www.acadxtabs.com<BR /> <BR /> <WESLLEYWANG> wrote in message news:5311236@discussion.autodesk.com...<BR /> Hi, <BR /> I just found the Handle.isNull does not exposed in .NET. then how I can check if a handle == null? <BR /> Handle.ToString() == "" <BR /> or <BR /> Handle.ToString() == "0"<BR /> which one is correct ? <BR /> <BR /> <BR /> <BR /> Thank you, <BR /> Wes</WESLLEYWANG> Tue, 29 Aug 2006 21:46:15 GMT https://forums.autodesk.com/t5/net-forum/handle-isnull/m-p/1749668#M80584 Anonymous 2006-08-29T21:46:15Z https://forums.autodesk.com/t5/net-forum/handle-isnull/m-p/1749669#M80585 Thank you, I will try it. Wed, 30 Aug 2006 15:13:03 GMT https://forums.autodesk.com/t5/net-forum/handle-isnull/m-p/1749669#M80585 wesbird 2006-08-30T15:13:03Z