CodeElement2.IsCodeType 屬性

發行項
10/28/2012

取得是否可從 CodeElement2 物件取得的 CodeType 物件。

命名空間： EnvDTE80
組件： EnvDTE80 (在 EnvDTE80.dll 中)

語法

'宣告
ReadOnly Property IsCodeType As Boolean

bool IsCodeType { get; }

property bool IsCodeType {
    bool get ();
}

abstract IsCodeType : bool

function get IsCodeType () : boolean

屬性值

型別：System.Boolean
布林值，如果可以從 CodeElement 物件取得 CodeType 物件，則為 true，否則為 false。

備註

如果是 true，則可以查詢介面或將它轉型為 CodeType 物件。當 Kind 是 vsCMElementClass、vsCMElementInterface、vsCMElementDelegate、vsCMElementStruct 或 vsCMElementEnum 時，則為 true。

注意事項
在特定類型的編輯之後，程式碼模型項目 (例如類別、結構、函式、屬性、委派等) 的值可能不具決定性，表示其值不一定維持相同。如需詳細資訊，請參閱使用程式碼模型探索程式碼 (Visual Basic) 的＜程式碼模型項目值可以變更＞一節。

範例

[Visual Basic]

Sub IsCodeTypeExample(ByVal dte As DTE2)

    ' NOTE: This example requires a reference to the System.Text 
    '       namespace.

    ' Before running this example, open a code document from a project.
    Dim item As ProjectItem = dte.ActiveDocument.ProjectItem
    Dim sb As New StringBuilder

    RecurseElements(item.FileCodeModel.CodeElements, 0, sb)

    MsgBox(item.Name & " contains the following elements:" & vbCrLf & _
        vbCrLf & sb.ToString())

End Sub

Sub RecurseElements(ByVal elems As CodeElements, _
    ByVal level As Integer, ByVal sb As StringBuilder)

    Dim elem As CodeElement
    For Each elem In elems
        ' Add element to the list of names.
        sb.Append(" "c, level * 8)
        sb.Append(elem.Name & " [" & elem.Kind.ToString() & "]" & _
            vbCrLf)

        ' Call this function recursively if element has children.
        If elem.Kind = vsCMElement.vsCMElementNamespace Then
            RecurseElements(CType(elem, CodeNamespace).Members, _
                level + 1, sb)
        ElseIf elem.IsCodeType Then
            RecurseElements(CType(elem, CodeType).Members, _
                level + 1, sb)
        End If
    Next

End Sub

[C#]

public void IsCodeTypeExample(DTE2 dte)
{
    // NOTE: This example requires a reference to the System.Text 
    //       namespace.

    // Before running this example, open a code document from a 
    // project.
    ProjectItem item = dte.ActiveDocument.ProjectItem;
    StringBuilder sb = new StringBuilder();

    RecurseElements(item.FileCodeModel.CodeElements, 0, sb);

    MessageBox.Show(item.Name + " contains the following elements:" + 
        Environment.NewLine + Environment.NewLine + sb.ToString());
}

void RecurseElements(CodeElements elems, int level, StringBuilder sb)
{
    foreach (CodeElement elem in elems)
    {
        // Add element to the list of names.
        sb.Append(' ', level * 8);
        sb.Append(elem.Name + " [" + elem.Kind.ToString() + "]" + 
            Environment.NewLine);

        // Call this function recursively if element has children.
        if (elem.Kind == vsCMElement.vsCMElementNamespace)
            RecurseElements(((CodeNamespace)elem).Members, 
                level + 1, sb);
        else if (elem.IsCodeType)
            RecurseElements(((CodeType)elem).Members, level + 1, sb);
    }
}