EditorPartCollection.IndexOf(EditorPart) 方法

  • 參考

定義

命名空間:
System.Web.UI.WebControls.WebParts
組件:
System.Web.dll

傳回集合特定成員的位置。

public:
 int IndexOf(System::Web::UI::WebControls::WebParts::EditorPart ^ editorPart);
public int IndexOf (System.Web.UI.WebControls.WebParts.EditorPart editorPart);
member this.IndexOf : System.Web.UI.WebControls.WebParts.EditorPart -> int
Public Function IndexOf (editorPart As EditorPart) As Integer

參數

editorPart
EditorPart

為集合成員的 EditorPart。

傳回

Int32

對應於集合中 EditorPart 控制項之索引的整數。

範例

下列程式碼範例示範如何使用 IndexOf 方法在 物件中 EditorPartCollection 尋找 EditorPart 控制項。 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 程式碼會 EditorPartCollection 建立 物件，然後使用 IndexOf 方法來尋找 PropertyGridEditorPart1 集合中的控制項，並設定其 ChromeType 屬性。

<!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。 您可以按一下動詞功能表 (控制項標題列中 TextDisplayWebPart 的向下箭號) ，然後按一下 [ 編輯 ] 以編輯控制項。 當編輯使用者介面 (UI) 可見時，您可以看到所有 EditorPart 控制項。 如果您按一下 [ 建立編輯器PartCollection ] 按鈕，您會發現 PropertyGridEditorPart1 位於頁面底部的控制項具有標題，但沒有框線。

備註

如果您在網頁元件頁面上有多個 EditorPart 控制項，而且您需要在集合中尋找特定控制項，此方法 IndexOf 會很有用。

適用於

另請參閱