CodeClass.AddAttribute(String, String, Object) Method

Reference

Definition

Namespace:: EnvDTE

Assembly:: EnvDTE.dll

Assembly:: Microsoft.VisualStudio.Interop.dll

Package:: Microsoft.VisualStudio.Interop v17.11.40262

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

EnvDTE::CodeAttribute AddAttribute(std::wstring const & Name, std::wstring const & Value, winrt::Windows::Foundation::IInspectable const & Position);

[System.Runtime.InteropServices.DispId(40)]
public EnvDTE.CodeAttribute AddAttribute (string Name, string Value, object Position);

[<System.Runtime.InteropServices.DispId(40)>]
abstract member AddAttribute : string * string * obj -> EnvDTE.CodeAttribute

Public Function AddAttribute (Name As String, Value As String, Optional Position As Object) As CodeAttribute

Parameters

Name: String

Required. The name of the new attribute.

Value: String

Required. The value of the attribute, which may be a list of parameters for a parameterized property, separated by commas .

Position: 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 AddAttribute(String, String, Object) 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.

Returns

CodeAttribute

A CodeAttribute object.

Attributes: DispIdAttribute

Examples

 Sub AddAttributeExample(ByVal dte As DTE2)  

    ' Before running this example, open a code document from a project  
    ' and place the insertion point inside a class definition.  
    Try  
        ' Retrieve the CodeClass at the insertion point.  
        Dim sel As TextSelection = _  
            CType(dte.ActiveDocument.Selection, TextSelection)  
        Dim cls As CodeClass = _  
            CType(sel.ActivePoint.CodeElement( _  
            vsCMElement.vsCMElementClass), CodeClass)  

        ' Add an attribute to the class.  
        cls.AddAttribute("TestAttribute", "TestValue")  
    Catch ex As Exception  
        MsgBox(ex.Message)  
    End Try  

End Sub

public void AddAttributeExample(DTE2 dte)  
{  
    // Before running this example, open a code document from a project  
    // and place the insertion point inside a class definition.  
    try  
    {  
        // Retrieve the CodeClass at the insertion point.  
        TextSelection sel =   
            (TextSelection)dte.ActiveDocument.Selection;  
        CodeClass cls =   
            (CodeClass)sel.ActivePoint.get_CodeElement(  
             vsCMElement.vsCMElementClass);  

        // Add an attribute to the class.  
        cls.AddAttribute("TestAttribute", "TestValue", -1);  
    }  
    catch (Exception ex)  
    {  
        MessageBox.Show(ex.Message);  
    }  
}

Remarks

If the attribute already exists, AddAttribute adds another. This may be incorrect for the attribute or the language behind the code model.

Note

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. For more information, see the section Code Model Element Values Can Change in Discovering Code by Using the Code Model (Visual Basic).

Applies to

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