Get Attributes

[Gora1000]

Hello

how is the best way to get the attributes from a Block in a Layout?

[DomCR]

Hi @Gora1000

To get the attributes for an instance of a block you have to get all the Inserts in the model, like:

CadDocument doc = DwgReader.Read(path);
foreach (Insert insert in doc.Entities.OfType<Insert>())
{
	//Do something with: insert.Attributes;
}

Let me know if this helps.

[Gora1000]

Hi DomCr,

thaks for your answer. With doc.Entities you get all blocks of type insert in the model space, but not from layout. For exsample I added a test.dwg to my answer.
[Test.zip]

I you open the file, you will find 3 Blocks in the Model space and in each layout the same one. In test.dwg two Layouts. If you use
CadObjectCollection<Entity> ent= doc.Entities;

you will get only three blocks from model space, but i need the Attributes from the Block in Layout.

If it should work, and i can change attribute values on the block in a layout. It is possible to save the changes at the same dwg file?

[DomCR]

Each Layout has it's own Block associated to it, which is the one that contains all the entities, you can iterate throw all layouts using:

foreach (Objects.Layout layout in doc.Layouts)
{
      BlockRecord block = layout.AssociatedBlock;
      foreach (Insert insert in block.Entities.OfType<Insert>())
      {
	      //Do something with: insert.Attributes
      }
}

This way you will get all the block instances (Insert) in the Layout that you want.

You can save the file using DwgWriter but keep in mind that ACadSharp doesn't guarantees the integrity of the resulting file, so I would not recommend to override the file, instead save it with a different name.

Let me know if this helps.