CssStyleCollection.Keys 属性
定义
重要
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获取特定 HTML 服务器控件的 CssStyleCollection 对象中所有样式的键集合。
public:
property System::Collections::ICollection ^ Keys { System::Collections::ICollection ^ get(); };public System.Collections.ICollection Keys { get; }member this.Keys : System.Collections.ICollectionPublic ReadOnly Property Keys As ICollection属性值
包含在指定 HTML 服务器控件的 CssStyleCollection 中的键的集合。
示例
下面的代码示例演示如何循环访问 CssStyleCollection 服务器控件的 HtmlInputText 集合。 属性Keys用于确定已在服务器控件上声明的样式属性，并将属性名称和值DataList绑定到Web Forms页上的对象。
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<!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 Page_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new DataColumn("AttributeName", typeof(String)));
dt.Columns.Add(new DataColumn("AttributeValue", typeof(String)));
// The Style property of the MyText control returns
// a CssStyleCollection object.
IEnumerator keys = MyText.Style.Keys.GetEnumerator();
while (keys.MoveNext())
{
String key = (String)keys.Current;
dr = dt.NewRow();
dr[0] = key;
dr[1] = MyText.Style[key];
dt.Rows.Add(dr);
}
DataView dv = new DataView(dt);
MessageList.DataSource = dv;
MessageList.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>CssStyleCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DataList id="MessageList"
runat="server">
<HeaderStyle Font-Bold="true"/>
<HeaderTemplate>
HtmlInputText control's CssStyleCollection
</HeaderTemplate>
<ItemTemplate>
Attribute:
<%# DataBinder.Eval(Container.DataItem, "AttributeName") %>
,
Value:
<%# DataBinder.Eval(Container.DataItem, "AttributeValue") %>
</ItemTemplate>
</asp:DataList>
<br />
An input control with a style attribute:
<br />
<input id="MyText"
type="text"
value="Type a value here."
style="font: 14pt verdana;width:300;"
runat="server"/>
</div>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<%@ Import Namespace="System.Data" %>
<!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 Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Dim dt As New DataTable()
Dim dr As DataRow
dt.Columns.Add(New DataColumn("AttributeName", GetType(String)))
dt.Columns.Add(New DataColumn("AttributeValue", GetType(String)))
' The Style property of the MyText control returns
' a CssStyleCollection object.
Dim keys As IEnumerator = MyText.Style.Keys.GetEnumerator()
While keys.MoveNext()
Dim key As [String] = CType(keys.Current, [String])
dr = dt.NewRow()
dr(0) = key
dr(1) = MyText.Style(key)
dt.Rows.Add(dr)
End While
Dim dv As New DataView(dt)
MessageList.DataSource = dv
MessageList.DataBind()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>CssStyleCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DataList id="MessageList"
runat="server">
<HeaderStyle Font-Bold="true"/>
<HeaderTemplate>
HtmlInputText control's CssStyleCollection
</HeaderTemplate>
<ItemTemplate>
Attribute:
<%# DataBinder.Eval(Container.DataItem, "AttributeName") %>
,
Value:
<%# DataBinder.Eval(Container.DataItem, "AttributeValue") %>
</ItemTemplate>
</asp:DataList>
<br />
<input id="MyText"
type="text"
value="Type a value here."
style="font: 14pt verdana;width:300;"
runat="server"/>
</div>
</form>
</body></html>
