MenuItemBindingCollection.Remove(MenuItemBinding) 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。
從集合中移除指定的 MenuItemBinding 物件。
public:
void Remove(System::Web::UI::WebControls::MenuItemBinding ^ binding);public void Remove(System.Web.UI.WebControls.MenuItemBinding binding);member this.Remove : System.Web.UI.WebControls.MenuItemBinding -> unitPublic Sub Remove (binding As MenuItemBinding)參數
- binding
- MenuItemBinding
從收藏中移除。MenuItemBinding
範例
以下程式碼範例示範如何使用此 Remove 方法將物件從集合中移除 MenuItemBinding 。 為了讓這個範例正確運作，你必須將下方的範例 XML 資料複製到一個名為 Map.xml的檔案中。
<%@ 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 menu item bindings for the Menu control.
MenuItemBinding binding;
binding = CreateMenuItemBinding("MapHomeNode", 0, "title", "url");
NavigationMenu.DataBindings.Add(binding);
binding = CreateMenuItemBinding("MapNode", 1, "title", "url");
NavigationMenu.DataBindings.Add(binding);
binding = CreateMenuItemBinding("MapNode", 2, "title", "url");
NavigationMenu.DataBindings.Add(binding);
// Use the Remove method to remove the last MenuItemBinding
// object.
NavigationMenu.DataBindings.Remove(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 Remove Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>MenuItemBindingCollection Remove 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="1"
textfield="title"
navigateurlfield="url"/>
<asp:menuitembinding datamember="MapNode"
depth="2"
textfield="title"
navigateurlfield="url"/>
<asp:menuitembinding datamember="ExtraMapNode"
depth="3"
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 menu item bindings for the Menu control.
Dim binding As MenuItemBinding
binding = CreateMenuItemBinding("MapHomeNode", 0, "title", "url")
NavigationMenu.DataBindings.Add(binding)
binding = CreateMenuItemBinding("MapNode", 1, "title", "url")
NavigationMenu.DataBindings.Add(binding)
binding = CreateMenuItemBinding("MapNode", 2, "title", "url")
NavigationMenu.DataBindings.Add(binding)
' Use the Remove method to remove the MenuItemBinding
' object.
NavigationMenu.DataBindings.Remove(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 Remove Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>MenuItemBindingCollection Remove 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="1"
textfield="title"
navigateurlfield="url"/>
<asp:menuitembinding datamember="MapNode"
depth="2"
textfield="title"
navigateurlfield="url"/>
<asp:menuitembinding datamember="ExtraMapNode"
depth="3"
textfield="title"
navigateurlfield="url"/>
</DataBindings>
</asp:menu>
<asp:xmldatasource id="MenuSource"
datafile="Map.xml"
runat="server"/>
</form>
</body>
</html>
以下是前一個範例的現場地圖範例資料。
<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
使用該 Remove 方法將指定的選單項綁定從集合中移除。 所有緊接該選單項目後的項目都會往上移動，填補空缺位置。 移動項目的索引也會更新。
Note
該集合可以包含空值，也可以包含重複 MenuItemBinding 的物件。
作為替代方案，你可以使用此 RemoveAt 方法從收藏中特定索引中移除選單項目。 你也可以用這個 Clear 方法把所有菜單項目從收藏中移除。
Note
物件在集合中出現的順序 MenuItemBinding 不會影響這些物件如何套用到控制項中的 Menu 選單項目。
