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LoadFrom Method

Group Type Load From Method

Replaces the group with the contents of the input file.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax 
public void LoadFrom(
	string fileName,
	GroupLoadOptions options
)

Parameters

fileName String
The file to be used for the replacment.
options GroupLoadOptions
Group load options.
Exceptions
Exception Condition
ArgumentException Not a valid RVT file.
ArgumentNullException A non-optional argument was null
FileArgumentNotFoundException The given fileName does not exist.
InvalidOperationException The element "this GroupType" is in a document which is in an edit mode or is in family mode. -or- The element "this GroupType" does not belong to a project document. -or- The GroupType is not a Model group type and can't be reloaded.
ModificationForbiddenException The document containing this GroupType is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). -or- The document containing this GroupType is being loaded, or is in the midst of another sensitive process.
ModificationOutsideTransactionException The document containing this GroupType has no open transaction.
Example 
public void LoadGroup(Group group, string filePath)
{
   GroupLoadOptions options = new GroupLoadOptions();
   options.ReplaceDuplicatedGroups = true;
   options.SetDuplicateTypeNamesHandler(new CustomDuplicateTypeNamesHandler());

   group.GroupType.LoadFrom(filePath, options);
}

class CustomDuplicateTypeNamesHandler : IDuplicateTypeNamesHandler
{
   public DuplicateTypeAction OnDuplicateTypeNamesFound(DuplicateTypeNamesHandlerArgs args)
   {
      return DuplicateTypeAction.UseDestinationTypes;
   }
}
See Also