This is my code which retrieve some layer names and I want to select that all layers when I running the command. How this is achieve give me some suggestions on that. Thank you in advance.
Snippet
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.Colors;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.Windows;
namespace NAL_Layer11
{
public class class1
{
[CommandMethod("NLCL")]
public static void PurgeLayers()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;
Transaction tr = doc.Database.TransactionManager.StartTransaction();
var curSpace = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
PromptPointResult ppr;
PromptPointOptions ppo = new PromptPointOptions("");
ppo.Message = "\n Select the place for print output:";
//get the coordinates from user
ppr = ed.GetPoint(ppo);
if (ppr.Status != PromptStatus.OK)
return;
Point3d startPoint = ppr.Value.TransformBy(ed.CurrentUserCoordinateSystem);
Vector3d disp = new Vector3d(0.0, -2.0 * db.Textsize, 0.0);
//Vector3d disp2 = new Vector3d(0.0, -2.0 * db.Textsize, 0.0);
TextStyleTable ts = (TextStyleTable)tr.GetObject(db.TextStyleTableId, OpenMode.ForRead);
ObjectId mtStyleid = db.Textstyle;
if (ts.Has("NAL-TEXT"))
{
mtStyleid = ts["NAL-FORMAT"];
}
// using (Transaction tr =
// db.TransactionManager.StartTransaction())
{
LayerTable table = tr.GetObject(db.LayerTableId,
OpenMode.ForRead) as LayerTable;
ObjectIdCollection layIds = new ObjectIdCollection();
foreach (ObjectId id in table)
{
layIds.Add(id);
}
//this function will remove all
//layers which are used in the drawing file
db.Purge(layIds);
MText mtext1 = new MText();
mtext1.Location = startPoint;
mtext1.TextStyleId = mtStyleid;
// mtext1.Contents = "The unauthorized layers are:";
mtext1.Width = 85.000;
mtext1.Height = 2.000;
mtext1.Contents = "{\\C1;The unauthorized layers are:}\\P";
curSpace.AppendEntity(mtext1);
tr.AddNewlyCreatedDBObject(mtext1, true);
db.TransactionManager.QueueForGraphicsFlush();
foreach (ObjectId id in layIds)
{
DBObject obj = tr.GetObject(id, OpenMode.ForWrite);
obj.Erase();
}
SymbolTable symTable = (SymbolTable)tr.GetObject(db.LayerTableId, OpenMode.ForRead);
// mtext.Contents = "The unauthorized layers are:";
foreach (ObjectId id in symTable)
{
ColorDialog cd = new ColorDialog();
LayerTableRecord symbol = (LayerTableRecord)tr.GetObject(id, OpenMode.ForRead);
if (symbol.Name.StartsWith("NL"))
{
// ed.WriteMessage("The authorized layres are:" + symbol.Name);
}
else
{
symbol.Color = Color.FromColorIndex(ColorMethod.ByAci, 15);
MText mtext = new MText();
mtext.Contents = "\n" + symbol.Name;
mtext.Location = startPoint;
mtext.Width = 75.207;
mtext.Height = 1.488;
mtext.TextStyleId = mtStyleid;
curSpace.AppendEntity(mtext);
tr.AddNewlyCreatedDBObject(mtext, true);
db.TransactionManager.QueueForGraphicsFlush();
startPoint += disp;
}
}
tr.Commit();
}
}
}
}
