Data Source Descriptors
Display Manager
MapBook
Style
Display Manager elements can have style associated with them.
DisplayManagement.Style is the base class for all the style classes. It is based on AutoCAD.DatabaseServices.DBObject, so it must be managed using AutoCAD transactions. The available style classes are:
- DefaultStyle
- EntityStyle
- StylizationEntityAnnotationStyle
- StylizationEntityHatchStyle
- StylizationEntityTextStyle
- RasterStyle
- ThematicStyle
Element.AddStyle() creates a reference from the element to the style object in the database. Multiple elements can refer to the same style object.
To create a new style, call its Create() method. Set the appropriate properties for the style type. Save the style in the database and add it to an element. For example, the following creates a new entity style and assigns it to a layer element:
Try
trans = activeDoc.TransactionManager.StartTransaction()
' Open the element for write, so the style can be added
Dim layer As Element = trans.GetObject(layerId, _
OpenMode.ForWrite)
' Pass 0.0 for the current scale
Dim styleRefIterator As StyleReferenceIterator = _
layer.GetStyleReferenceIterator(0.0, True, True)
' Add the style
Dim styleEntity As EntityStyle = EntityStyle.Create()
' Set style properties
Dim color As Autodesk.AutoCAD.Colors.Color = _
color.FromColorIndex( _
Autodesk.AutoCAD.Colors.ColorMethod.None, 5)
styleEntity.Color = color
styleEntity.Name = styleName
Dim id As ObjectId
id = layer.AddStyle(styleEntity, styleRefIterator)
trans.AddNewlyCreatedDBObject(styleEntity, True)
trans.Commit()
trans = Nothing
Catch e As System.Exception
' Process exception
Finally
If Not trans Is Nothing Then
trans.Abort()
trans = Nothing
End If
End Try