EditorPartCollection.Contains(EditorPart) 方法
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
傳回值，指出集合中是否存在特定的控制項。
public:
bool Contains(System::Web::UI::WebControls::WebParts::EditorPart ^ editorPart);public bool Contains (System.Web.UI.WebControls.WebParts.EditorPart editorPart);member this.Contains : System.Web.UI.WebControls.WebParts.EditorPart -> boolPublic Function Contains (editorPart As EditorPart) As Boolean參數
- editorPart
- EditorPart
正對其集合成員狀態進行測試的 EditorPart。
傳回
指出集合中是否存在 EditorPart 的布林值。
範例
下列程式代碼範例示範如何判斷特定 EditorPart 控制項是否位於物件中 EditorPartCollection 。 如需執行範例所需的完整程式碼，請參閱類別概觀的 EditorPartCollection 範例一節。
事件中的 Button1_Click 程式代碼不會在加入其他控制項時， LayoutEditorPart1 將控件新增至 EditorPartCollection 物件。 若要確認 LayoutEditorPart1 控件不在集合中，程式代碼會使用 Contains 方法。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
ArrayList list = new ArrayList(2);
list.Add(AppearanceEditorPart1);
list.Add(PropertyGridEditorPart1);
// Pass an ICollection object to the constructor.
EditorPartCollection myParts = new EditorPartCollection(list);
foreach (EditorPart editor in myParts)
{
editor.BackColor = System.Drawing.Color.LightBlue;
editor.Description = "My " + editor.DisplayTitle + " editor.";
}
// Use the IndexOf property to locate an EditorPart control.
int propertyGridPart = myParts.IndexOf(PropertyGridEditorPart1);
myParts[propertyGridPart].ChromeType = PartChromeType.TitleOnly;
// Use the Contains method to see if an EditorPart exists.
if(!myParts.Contains(LayoutEditorPart1))
LayoutEditorPart1.BackColor = System.Drawing.Color.LightYellow;
// Use the CopyTo method to create an array of EditorParts.
EditorPart[] partArray = new EditorPart[3];
partArray[0] = LayoutEditorPart1;
myParts.CopyTo(partArray,1);
Label1.Text = "<h3>EditorParts in Custom Array</h3>";
foreach (EditorPart ePart in partArray)
{
Label1.Text += ePart.Title + "<br />";
}
}
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Button1_Click(ByVal sender As Object, _
ByVal e As EventArgs)
Dim list As New ArrayList(2)
list.Add(AppearanceEditorPart1)
list.Add(PropertyGridEditorPart1)
' Pass an ICollection object to the constructor.
Dim myParts As New EditorPartCollection(list)
Dim editor As EditorPart
For Each editor In myParts
editor.BackColor = System.Drawing.Color.LightBlue
editor.Description = "My " + editor.DisplayTitle + " editor."
Next editor
' Use the IndexOf property to locate an EditorPart control.
Dim propertyGridPart As Integer = _
myParts.IndexOf(PropertyGridEditorPart1)
myParts(propertyGridPart).ChromeType = PartChromeType.TitleOnly
' Use the Contains method to see if an EditorPart exists.
If Not myParts.Contains(LayoutEditorPart1) Then
LayoutEditorPart1.BackColor = System.Drawing.Color.LightYellow
End If
' Use the CopyTo method to create an array of EditorParts.
Dim partArray(2) As EditorPart
partArray(0) = LayoutEditorPart1
myParts.CopyTo(partArray, 1)
Label1.Text = "<h3>EditorParts in Custom Array</h3>"
Dim ePart As EditorPart
For Each ePart In partArray
Label1.Text += ePart.Title + "<br />"
Next ePart
End Sub
</script>
當您在瀏覽器中載入頁面時，您可以在 [顯示模式] 下拉式清單控制項中選取 [編輯]，將頁面切換為編輯模式。 您可以單擊動詞功能表， (控件標題欄中 TextDisplayWebPart 的向下箭號) ，然後按兩下 [編輯 ] 來編輯控件。 當顯示編輯使用者介面 (UI) 時，您可以看到所有 EditorPart 控件。 如果您按兩下 [ 建立編輯器PartCollection ] 按鈕，您會發現控件的背景色彩 LayoutEditorPart1 與其他控制項不同，因為它不是物件的一部分 EditorPartCollection 。
備註
方法 Contains 會判斷特定 EditorPart 控制項是否已經在物件中 EditorPartCollection 。
