转：C# Autocad 关闭所有有色斑的图层

/*关闭所有有色斑的图层
 * 
 * 色斑图层比较多的情况下,一个一个弄比较麻烦,这个一次全关,再配合图层状态保存功能就非常容易相互切换了
 * 
 * http://goat.cublog.cn
 * 作者:王晓东 QQ:10516321 Email:xiaook@gmail.com
 * 
 */
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Runtime;

/*Copyright © CHINA 2009

AutoCAD version:AutoCAD 2006
Description:

To use DelectObjectsInWindowPolyline.dll:

1. Start AutoCAD and open a new drawing.
2. Type netload and select CloseLayerHasHatchSolid.dll.
3. Execute the xqd command.*/

namespace CloseLayerHasHatchSolid
{
    /// <summary>

/// Summary for Class1.

/// </summary>

public class Class1
    {

[CommandMethod("xcl")]
        public void xcl()
        {
            Document acDoc = Application.DocumentManager.MdiActiveDocument;
            Editor acDocEd = Application.DocumentManager.MdiActiveDocument.Editor;
            Database acDb = acDoc.Database;
            ObjectIdCollection acObjIdColl = new ObjectIdCollection();

//选择范围线

TypedValue[] tv = new TypedValue[2];
            tv[0] = new TypedValue((int)DxfCode.Start, "HATCH");
            tv[1] = new TypedValue((int)DxfCode.ShapeName, "SOLID");
            SelectionFilter sf = new SelectionFilter(tv);
            PromptSelectionResult acPtRes = acDocEd.SelectAll(sf);
            ObjectIdCollection oIdCol = new ObjectIdCollection();

if (acPtRes.Status == PromptStatus.OK)
            {
                SelectionSet ss = acPtRes.Value;
                oIdCol = new ObjectIdCollection(ss.GetObjectIds());
            }
            foreach (ObjectId oid in oIdCol)
            {
                using (Transaction acTrans = acDb.TransactionManager.StartTransaction())
                {
                    Entity ent = (Entity)acTrans.GetObject(oid, OpenMode.ForRead);
                    LayerTable lt;
                    lt = (LayerTable)acTrans.GetObject(acDb.LayerTableId, OpenMode.ForRead);
                    LayerTableRecord ltr = (LayerTableRecord)acTrans.GetObject(lt[ent.Layer],OpenMode.ForWrite);
                    ltr.IsOff = true;
                    acTrans.Commit();
                }
            }
        }
    }
}

摘自：http://blog.csdn.net/gisoracle/article/details/7276662