/// <summary>
/// Defines a block attribute.
/// </summary>
/// <param name="blockName">The block name.</param>
/// <param name="tag">The tag.</param>
/// <param name="value">The value.</param>
/// <param name="prompt">The prompt.</param>
/// <param name="position">The position.</param>
/// <param name="style">The style.</param>
public static void DefineBlockAttribute(string blockName, string tag, string value, string prompt, Point3d position, ObjectId style)
{
var ad = new AttributeDefinition(position, value, tag, prompt, style);
using (var trans = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction())
{
var block = trans.GetObject(DbHelper.GetBlockId(blockName), OpenMode.ForWrite) as BlockTableRecord;
block.AppendEntity(ad);
trans.AddNewlyCreatedDBObject(ad, true);
trans.Commit();
}
}