Export Method (String, String, ICollection(ElementId), DGNExportOptions)

Exports a selection of views in DGN format.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: (17.0.484.0)


public bool Export(
	string folder,
	string name,
	ICollection<ElementId> views,
	DGNExportOptions options
Visual Basic
Public Function Export ( _
	folder As String, _
	name As String, _
	views As ICollection(Of ElementId), _
	options As DGNExportOptions _
) As Boolean
Visual C++
bool Export(
	String^ folder, 
	String^ name, 
	ICollection<ElementId^>^ views, 
	DGNExportOptions^ options


Type: System String
Output folder, into which file(s) will be exported. The folder must exist.
Type: System String
Either the name of a single file or a prefix for a set of files. If empty, automatic naming will be used. If a null reference ( Nothing in Visual Basic) , throw ArgumentException.
Type: System.Collections.Generic ICollection ElementId
Selection of views to be exported. The set must contain at least one valid view.
Type: Autodesk.Revit.DB DGNExportOptions
Various options applicable to the DGN format. If a null reference ( Nothing in Visual Basic) , all options will be set to their respective default values.

Return Value

True if successful, otherwise False.


All the views must be printable for the Export to succeed. It can be assured by checking the CanBePrinted property of each view.


Copy C#
public bool ExportDGN(Document document, View view)
    bool exported = false;
    // Get predefined setups and use the first one
    IList<string> setupNames = BaseExportOptions.GetPredefinedSetupNames(document);
    if (setupNames.Count > 0)
        // Get predefined options for first predefined setup
        DGNExportOptions dgnOptions = DGNExportOptions.GetPredefinedOptions(document, setupNames[0]);

        // export the active view if it is printable
        if (view.CanBePrinted == true)
            ICollection<ElementId> views = new List<ElementId>();
            exported = document.Export(Path.GetDirectoryName(document.PathName),
                Path.GetFileNameWithoutExtension(document.PathName), views, dgnOptions);

    return exported;
Public Function ExportDGN(document As Document, view As View) As Boolean
   Dim exported As Boolean = False
   ' Get predefined setups and use the first one
   Dim setupNames As IList(Of String) = BaseExportOptions.GetPredefinedSetupNames(document)
   If setupNames.Count > 0 Then
      ' Get predefined options for first predefined setup
      Dim dgnOptions As DGNExportOptions = DGNExportOptions.GetPredefinedOptions(document, setupNames(0))

      ' export the active view if it is printable
      If view.CanBePrinted = True Then
         Dim views As ICollection(Of ElementId) = New List(Of ElementId)()
         exported = document.Export(Path.GetDirectoryName(document.PathName), Path.GetFileNameWithoutExtension(document.PathName), views, dgnOptions)
      End If
   End If

   Return exported
End Function


Exception Condition
Autodesk.Revit.Exceptions ArgumentException NullOrEmpty -or- Contains invalid characters -or- non empty list of views must be provided -or- some of the views is not printable(exportable) -or- Thrown when the options in DGNExportOptions is invalid.
Autodesk.Revit.Exceptions ArgumentNullException A non-optional argument was NULL
Autodesk.Revit.Exceptions DirectoryNotFoundException Thrown when the directory does not exist.
Autodesk.Revit.Exceptions InvalidOperationException Export is temporarily disabled. -or- Exporting is not allowed in the current application mode.
Autodesk.Revit.Exceptions InvalidPathArgumentException The folder does not exist.
Autodesk.Revit.Exceptions OptionalFunctionalityNotAvailableException The DWG module is not available in the installed Revit. -or- The Graphics module is not available in the installed Revit.

See Also