Gets the line pattern id associated with this category for the given graphics style type. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 17.0.0.0 (17.0.1090.0) 
  Since:  2017 
Syntax
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Parameters
- graphicsStyleType
-  Type:  Autodesk.Revit.DB GraphicsStyleType  
 The type of graphics style.
Return Value
Returns the line pattern id associated with this category for the given graphics style type.Remarks
- The line pattern id will be one of the following:
- A negative value (representing a built-in line pattern)
- The id of a LinePatternElement
- InvalidElementId, indicating that this category does not have a stored line pattern id for this graphics style type.