Topic: walking the Block Table

[JimAndi]

Hello All,

I have been trying to find out how to walk the blocktable to see if a block name in the list. 

I am using this code:

                   BlockTable bt = (BlockTable)tr.GetObject(db.Database.BlockTableId, OpenMode.ForRead);
                     int i = 0;
                     //            String FoundTB = "";    FoundTB = "No";
                     foreach (DataRow row in ds.Rows)
                     {
                         if (!bt.Has(ds.Rows["DWGNAME"].ToString()))
                         {
                             FoundTB = ds.Rows["DWGNAME"].ToString();
                         }
                         i++;
                     }

It is working, but I am getting a block name to block that has been deleted.  Do I need to purge the draw? I only really want the block name to the Title Block that is inserted on a layer called "Title" because I do not know what Title Block the user inserted.

Any help on this would be great! (I would buy lunch) 

Jim

[JimAndi]

I need help with this...
Do you know how to do this in .NET?

(setq EN (ssname (ssget "X" (list (cons 0 "INSERT")(cons 8 "TITLE")(cons 66 1))) 0))

anyone?

[gile]

Hi,

Code: [Select]

Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
TypedValue[] filter = { new TypedValue(0, "INSERT"), new TypedValue(8, "TITLE"), new TypedValue(66, 1) };
PromptSelectionResult psr = ed.SelectAll(new SelectionFilter(filter));
if (psr.Status != PromptStatus.OK) return;
ObjectId en = psr.Value.GetObjectIds()[0];

[JimAndi]

 Thank you..... now I have to figure out how to get the block name... but I I will start on that task...

[JimAndi]

Hi All,
how do you get the block name from a entity id?
jim

[gile]

Start a Transaction.
Open the BlockReference within the transaction.
Get the Name property of the BlockReference object.
If BlockReference object do not have a Name property (depends on which SDK version you are targeting), open the BlockTableRecord whose the BlockReference refers and get the Name property ob the BlockTableRecord .

Look at the AutoCAD .NET Developer's Guide >Create and Edit AutoCAD Entities > Open and Close Objects.

[JimAndi]

Thank you....