The LoadBase object is the base class for all load objects within the Autodesk Revit API. 
   Namespace:   Autodesk.Revit.DB.Structure  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
Remarks
 Load objects are only available in Autodesk Revit Structure. This object contains methods that are common to all other load objects. 
 Examples
 Copy  C#
 Copy  C# private void LoadBaseInformation(LoadBase loadBase)
{
    string message = "LoadBase data for line load: ";
    //Get the name of the load case to which this load belongs
    message += "\nLoad case name: " + loadBase.LoadCaseName;
    //Get the name of the category to which this load belongs
    message += "\nLoad category name: " + loadBase.LoadCategoryName;
    //A string representing the nature of the load
    message += "\nLoad nature name: " + loadBase.LoadNatureName;
    //show the load base information in the messagebox
    TaskDialog.Show("Revit",message);
} Copy  VB.NET
 Copy  VB.NET Private Sub LoadBaseInformation(loadBase As LoadBase)
    Dim message As String = "LoadBase data for line load: "
    'Get the name of the load case to which this load belongs
    message += vbLf & "Load case name: " & Convert.ToString(loadBase.LoadCaseName)
    'Get the name of the category to which this load belongs
    message += vbLf & "Load category name: " & Convert.ToString(loadBase.LoadCategoryName)
    'A string representing the nature of the load
    message += vbLf & "Load nature name: " & Convert.ToString(loadBase.LoadNatureName)
    'show the load base information in the messagebox
    TaskDialog.Show("Revit", message)
End SubInheritance Hierarchy
  System Object  
Autodesk.Revit.DB Element
Autodesk.Revit.DB.Structure LoadBase
Autodesk.Revit.DB.Structure AreaLoad
Autodesk.Revit.DB.Structure LineLoad
Autodesk.Revit.DB.Structure PointLoad
 
 Autodesk.Revit.DB Element
Autodesk.Revit.DB.Structure LoadBase
Autodesk.Revit.DB.Structure AreaLoad
Autodesk.Revit.DB.Structure LineLoad
Autodesk.Revit.DB.Structure PointLoad