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MenuItemBindingCollection.Insert(Int32, MenuItemBinding) 方法

  • 參考

定義

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

在指定索引位置將指定的 MenuItemBinding 物件加入集合。

public:
 void Insert(int index, System::Web::UI::WebControls::MenuItemBinding ^ binding);
public void Insert (int index, System.Web.UI.WebControls.MenuItemBinding binding);
member this.Insert : int * System.Web.UI.WebControls.MenuItemBinding -> unit
Public Sub Insert (index As Integer, binding As MenuItemBinding)

參數

index
Int32

要插入 MenuItemBinding 之以零起始的索引位置。

binding
MenuItemBinding

要插入的 MenuItemBinding。

範例

下列程式碼範例示範如何使用 Insert 方法，將 物件加入 MenuItemBinding 至集合中的特定索引處。 若要讓此範例正常運作，您必須將下面的範例 XML 資料複製到名為 Map.xml 的檔案。


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  void Page_Load(Object sender, EventArgs e)
  {
    if(!IsPostBack)
    {
      // Create the MenuItemBinding object to insert.
      MenuItemBinding binding;      
      binding = CreateMenuItemBinding("MapNode", 1, "title", "url");

      // Use the Insert method to add the MenuItemBinding 
      // object to the Bindings collection at index 1.
      NavigationMenu.DataBindings.Insert(1, binding);
    }
  }

  // This is a helper method to create a MenuItemBinding 
  // object from the specified parameters.
  MenuItemBinding CreateMenuItemBinding(String dataMember, int depth, String textField, String navigateUrlField)
  {
    // Create a new MenuItemBinding object.
    MenuItemBinding binding = new MenuItemBinding();

    // Set the properties of the MenuItemBinding object.
    binding.DataMember = dataMember;
    binding.Depth = depth;
    binding.TextField = textField;
    binding.NavigateUrlField = navigateUrlField;

    return binding;
  }
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItemBindingCollection Insert Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemBindingCollection Insert Example</h3>
    
      <asp:menu id="NavigationMenu"
        staticdisplaylevels="2"
        staticsubmenuindent="10" 
        orientation="Vertical"
        target="_blank"
        datasourceid="MenuSource"
        runat="server">
        
        <DataBindings>
          <asp:menuitembinding datamember="MapHomeNode" 
            depth="0"
            textfield="title" 
            navigateurlfield="url"/>
          <asp:menuitembinding datamember="MapNode" 
            depth="2"
            textfield="title" 
            navigateurlfield="url"/>
        </DataBindings>
                
      </asp:menu>
      
      <asp:xmldatasource id="MenuSource"
        datafile="Map.xml"
        runat="server"/>        

    </form>
  </body>
</html>


<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
 
    If Not IsPostBack Then
    
      ' Create the MenuItemBinding object to insert.
      Dim binding As MenuItemBinding      
      binding = CreateMenuItemBinding("MapNode", 1, "title", "url")

      ' Use the Insert method to add the MenuItemBinding 
      ' object to the Bindings collection at index 1.
      NavigationMenu.DataBindings.Insert(1, binding)
      
    End If
    
  End Sub

  ' This is a helper method to create a MenuItemBinding 
  ' object from the specified parameters.
  Function CreateMenuItemBinding(ByVal dataMember As String, ByVal depth As Integer, ByVal textField As String, ByVal navigateUrlField As String) As MenuItemBinding
  
    ' Create a new MenuItemBinding object.
    Dim binding As New MenuItemBinding()

    ' Set the properties of the MenuItemBinding object.
    binding.DataMember = dataMember
    binding.Depth = depth
    binding.TextField = textField
    binding.NavigateUrlField = navigateUrlField

    Return binding
    
  End Function
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItemBindingCollection Insert Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemBindingCollection Insert Example</h3>
    
      <asp:menu id="NavigationMenu"
        staticdisplaylevels="2"
        staticsubmenuindent="10" 
        orientation="Vertical"
        target="_blank"
        datasourceid="MenuSource"
        runat="server">
        
        <DataBindings>
          <asp:menuitembinding datamember="MapHomeNode" 
            depth="0"
            textfield="title" 
            navigateurlfield="url"/>
          <asp:menuitembinding datamember="MapNode" 
            depth="2"
            textfield="title" 
            navigateurlfield="url"/>
        </DataBindings>
                
      </asp:menu>
      
      <asp:xmldatasource id="MenuSource"
        datafile="Map.xml"
        runat="server"/>        

    </form>
  </body>
</html>

以下是上一個範例的網站地圖資料範例。

<MapHomeNode url="~\Home.aspx"

title="Home"

description="Home">

<MapNode url="~\Music.aspx"

title="Music"

description="Music">

<MapNode url="~\Classical.aspx"

title="Classical"

description="Classical"/>

<MapNode url="~\Rock.aspx"

title="Rock"

description="Rock"/>

<MapNode url="~\Jazz.aspx"

title="Jazz"

description="Jazz"/>

</MapNode>

<MapNode url="~\Movies.aspx"

title="Movies"

description="Movies">

<MapNode url="~\Action.aspx"

title="Action"

description="Action"/>

<MapNode url="~\Drama.aspx"

title="Drama"

description="Drama"/>

<MapNode url="~\Musical.aspx"

title="Musical"

description="Musical"/>

</MapNode>

</MapHomeNode>

備註

Insert使用 方法，將指定的 MenuItemBinding 物件插入集合中指定的索引處。

注意

您可以將 Null 值和重複 MenuItemBinding 的物件加入至集合。

或者，您也可以使用 Add 方法，將 物件附加 MenuItemBinding 至集合結尾。

注意

物件出現在集合中的順序 MenuItemBinding 不會影響這些物件如何套用至控制項中的 Menu 功能表項目。

適用於

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