CodeModel2.AddClass Method (String, Object, Object, Object, Object, vsCMAccess)


Creates a new class code construct and inserts the code in the correct location.

Namespace:   EnvDTE80
Assembly:  EnvDTE80 (in EnvDTE80.dll)

CodeClass AddClass(
	string Name,
	object Location,
	object Position,
	object Bases,
	object ImplementedInterfaces,
	vsCMAccess Access = vsCMAccess.vsCMAccessDefault


Type: System.String

Required. The name of the class.

Type: System.Object

Required. The path and file name for the new class definition. Depending on the language, the file name is either relative or absolute to the project file. The file is added to the project if it is not already a project item. If the file cannot be created and added to the project, then AddClass fails.

Type: System.Object

Optional. Default = 0. The code element after which to add the new element. If the value is a CodeElement, then the new element is added immediately after it.

If the value is a Long, then AddClass indicates the element after which to add the new element.

Because collections begin their count at 1, passing 0 indicates that the new element should be placed at the beginning of the collection. A value of -1 means the element should be placed at the end.

Type: System.Object

Required. Default = 0. A SafeArray of fully qualified type names or CodeClass objects from which the new class inherits its implementations.

Type: System.Object

Required. Default = 0. A SafeArray of fully qualified type names or CodeInterface objects, each representing an interface that the new class promises to implement.

Type: EnvDTE.vsCMAccess

Optional. A vsCMAccess constant.

Return Value

Type: EnvDTE.CodeClass

A CodeClass object.

The correctness of the arguments is determined by the language behind the code model.


The values of code model elements such as classes, structs, functions, attributes, delegates, and so forth can be non-deterministic after making certain kinds of edits, meaning that their values cannot be relied upon to always remain the same.

public void AddClassExample(DTE2 dte)
    // Before running this example, open a code document from
    // a project.
        ProjectItem projItem = dte.ActiveDocument.ProjectItem;
        CodeModel cm = projItem.ContainingProject.CodeModel;

        // Initialize the base classes array and the implemented 
        // interfaces array.
        object[] bases = {ConvertFullName(cm, "System.Object")};
        object[] interfaces = {
            ConvertFullName(cm, "System.IDisposable"),
            ConvertFullName(cm, "System.IComparable")

        // Create a new class.
        cm.AddClass("TestClass", projItem.Name, -1, bases, 
            interfaces, vsCMAccess.vsCMAccessPublic);
    catch (Exception ex)

string ConvertFullName(CodeModel cm, string fullName)
    // Convert a .NET type name into a C++ type name.
    if ((cm.Language == CodeModelLanguageConstants.vsCMLanguageVC) || 
        (cm.Language == CodeModelLanguageConstants.vsCMLanguageMC))
        return fullName.Replace(".", "::");
        return fullName;
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