Save Layer States (.NET)

Use the SaveLayerState method to save a set of layer settings in a drawing. The SaveLayerState method requires three parameters. The first parameter is a string naming the layer state you are saving. The second parameter identifies the layer properties you want to save. Use the constants of the LayerStateMasks enum to identify the layer settings you want to save. The following table lists the constants that are part of the LayerStateMasks enum.

Constants for layer state mask
Constant name	Layer property
Color	Color
CurrentViewport	Current viewport layers frozen or thawed
Frozen	Frozen or thawed
LastRestored	Last restored layer
LineType	Linetype
LineWeight	Lineweight
Locked	Locked or unlocked
NewViewport	New viewport layers frozen or thawed
None	No layer settings
On	On or off
Plot	Plotting on or off
PlotStyle	Plot style

Add the constants together to specify multiple properties.

The third parameter required is the object id of the viewport whose layer settings you want to save. Use ObjectId.Null to not specify a viewport. If you try to save a layer state under a name that already exists, an error is returned. You must rename or delete the existing layer state before you can reuse the name.

Save a layer's color and linetype settings

The following code saves the color and linetype settings of the current layers in the drawing under the name ColorLinetype.

VB.NET

Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
 
<CommandMethod("SaveLayerColorAndLinetype")> _
Public Sub SaveLayerColorAndLinetype()
    '' Get the current document
    Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
 
    Dim acLyrStMan As LayerStateManager
    acLyrStMan = acDoc.Database.LayerStateManager
 
    Dim sLyrStName As String = "ColorLinetype"
 
    If acLyrStMan.HasLayerState(sLyrStName) = False Then
        acLyrStMan.SaveLayerState(sLyrStName, _
                                  LayerStateMasks.Color + _
                                  LayerStateMasks.LineType, _
                                  ObjectId.Null)
    End If
End Sub

C#

using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
 
[CommandMethod("SaveLayerColorAndLinetype")]
public static void SaveLayerColorAndLinetype()
{
    // Get the current document
    Document acDoc = Application.DocumentManager.MdiActiveDocument;
 
    LayerStateManager acLyrStMan;
    acLyrStMan = acDoc.Database.LayerStateManager;
 
    string sLyrStName = "ColorLinetype";
 
    if (acLyrStMan.HasLayerState(sLyrStName) == false)
    {
        acLyrStMan.SaveLayerState(sLyrStName,
                                  LayerStateMasks.Color | 
                                  LayerStateMasks.LineType,
                                  ObjectId.Null);
    }
}

VBA/ActiveX Code Reference

Sub SaveLayerColorAndLinetype()
    Dim oLSM As AcadLayerStateManager
 
    ' Access the LayerStateManager object
    Set oLSM = ThisDrawing.Application. _
                   GetInterfaceObject("AutoCAD.AcadLayerStateManager.20")
 
    ' Associate the current drawing database with LayerStateManager
    oLSM.SetDatabase ThisDrawing.Database
    oLSM.Save "ColorLinetype", acLsColor + acLsLineType
End Sub