topic Re: Copy layer from another DWG in c# in .NET Forum

Copy layer from another DWG in c#

alexisgacia — Sun, 15 May 2022 05:46:22 GMT

Hello,

Good day. I'm searching a code to copy a layer from dwg to current. I did some testing code from the net and I was not able to figure it out the right solution.

Please share working code on copying a layer either vb or C#

Thank you very much in advance

Re: Copy layer from another DWG in c#

kerry_w_brown — Sun, 15 May 2022 07:02:46 GMT

The code will vary depending if the source drawing is open in AutoCAD or not.
Will the user have a choice of the source drawing ? or will the source be constant ?

Judicious use of Google should provide several possible solutions.

Re: Copy layer from another DWG in c#

alexisgacia — Mon, 16 May 2022 10:34:49 GMT

The path is a constant.

The function looks like below, but I wasn't able to figure out to properly copy the layer to the current drawing:

public boolean GetLayerFromLib(LayerName as string) { string dwgPath = @"c:\test.dwg"; 'open dwgPath database 'read the LayerTable 'Check if has the LayerName 'if exist copy to current database and return true 'else return false }

Re: Copy layer from another DWG in c#

_gile — Mon, 16 May 2022 15:51:04 GMT

Here's an example:

public bool GetLayerFromLib(string layerName) { var curDb = HostApplicationServices.WorkingDatabase; string dwgPath = @"c:\test.dwg"; using (var db = new Database(false, true)) { db.ReadDwgFile(dwgPath, FileOpenMode.OpenForReadAndAllShare, true, null); using (var tr = db.TransactionManager.StartOpenCloseTransaction()) { var layerTable = (LayerTable)tr.GetObject(db.LayerTableId, OpenMode.ForRead); if (!layerTable.Has(layerName)) return false; var ids = new ObjectIdCollection(); ids.Add(layerTable[layerName]); var mapping = new IdMapping(); db.WblockCloneObjects(ids, curDb.LayerTableId, mapping, DuplicateRecordCloning.Replace, false); return true; } } }

Re: Copy layer from another DWG in c#

alexisgacia — Tue, 17 May 2022 10:51:56 GMT

It works!
Thank you very much.