Changing block definition of an Block reference

eachy

2. [CommandMethod("chageBlock")]
   
3. public static void chageBlock()
   
4. {
   
5.     Document doc = Application.DocumentManager.MdiActiveDocument;
   
6.     Database db = doc.Database;
   
7.     Editor ed = doc.Editor;
   
8.     PromptEntityOptions options =
   
9.         new PromptEntityOptions("\nSelect block reference");
   
10.     options.SetRejectMessage("\nSelect only block reference");
    
11.     options.AddAllowedClass(typeof(BlockReference), false);
    
12.     PromptEntityResult acSSPrompt = ed.GetEntity(options);
    
13.     if (acSSPrompt.Status != PromptStatus.OK)
    
14.         return;
    
15.     using (Transaction Tx = db.TransactionManager.StartTransaction())
    
16.     {
    
17.         //get the reference
    
18.         BlockReference blockRef = Tx.GetObject(acSSPrompt.ObjectId,
    
19.                                OpenMode.ForRead) as BlockReference;
    
20.         //block table record...
    
21.         BlockTable blockTable = Tx.GetObject(db.BlockTableId,
    
22.                                     OpenMode.ForRead) as BlockTable;
    
23.         //set the test as new block if present
    
24.         if (blockTable.Has("TEST"))
    
25.         {
    
26.             blockRef.UpgradeOpen();
    
27.             //set the id of the test block
    
28.             blockRef.BlockTableRecord = blockTable["TEST"];
    
29.         }
    
30.         Tx.Commit();
    
31.     }
    
32. }
    

[CommandMethod("chageBlock")]<br /> public static void chageBlock()<br /> {<br />     Document doc = Application.DocumentManager.MdiActiveDocument;<br />     Database db = doc.Database;<br />     Editor ed = doc.Editor;<br />     PromptEntityOptions options =<br />         new PromptEntityOptions("\nSelect block reference");<br />     options.SetRejectMessage("\nSelect only block reference");<br />     options.AddAllowedClass(typeof(BlockReference), false);<br />     PromptEntityResult acSSPrompt = ed.GetEntity(options);<br />     if (acSSPrompt.Status != PromptStatus.OK)<br />         return;<br />     using (Transaction Tx = db.TransactionManager.StartTransaction())<br />     {<br />         //get the reference<br />         BlockReference blockRef = Tx.GetObject(acSSPrompt.ObjectId,<br />                                OpenMode.ForRead) as BlockReference;<br />         //block table record...<br />         BlockTable blockTable = Tx.GetObject(db.BlockTableId,<br />                                     OpenMode.ForRead) as BlockTable;<br />         //set the test as new block if present<br />         if (blockTable.Has("TEST"))<br />         {<br />             blockRef.UpgradeOpen();<br />             //set the id of the test block<br />             blockRef.BlockTableRecord = blockTable["TEST"];<br />         }<br />         Tx.Commit();<br />     }<br /> }<br />

Changing block definition of an Block reference By Virupaksha Aithal
Below code shows the procedure to modify the block definition for block reference. Code, prompts the user to select a block reference and changes its definition so that block reference becomes reference for new block definition,