Panel.HorizontalAlign 属性

定义

获取或设置面板内容的水平对齐方式。Gets or sets the horizontal alignment of the contents within the panel.

public:
 virtual property System::Web::UI::WebControls::HorizontalAlign HorizontalAlign { System::Web::UI::WebControls::HorizontalAlign get(); void set(System::Web::UI::WebControls::HorizontalAlign value); };
[System.ComponentModel.Bindable(true)]
public virtual System.Web.UI.WebControls.HorizontalAlign HorizontalAlign { get; set; }
public virtual System.Web.UI.WebControls.HorizontalAlign HorizontalAlign { get; set; }
member this.HorizontalAlign : System.Web.UI.WebControls.HorizontalAlign with get, set
Public Overridable Property HorizontalAlign As HorizontalAlign

属性值

HorizontalAlign 值之一。One of the HorizontalAlign values. 默认为 NotSetThe default is NotSet.

属性

例外

水平对齐方式不是 HorizontalAlign 值之一。The horizontal alignment is not one of the HorizontalAlign values.

示例

下面的示例演示如何在 Panel中右对齐或左对齐控件。The following example illustrates how to right-align or left-align the controls within the Panel.

备注

下面的代码示例使用单文件代码模型,如果直接复制到代码隐藏文件中,则可能无法正常工作。The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. 必须将此代码示例复制到扩展名为 .aspx 的空文本文件中。This code sample must be copied into an empty text file that has an .aspx extension. 有关 Web 窗体代码模型的详细信息,请参阅ASP.NET Web 窗体页代码模型For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.

<%@ Page Language="C#" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
 <head>
    <title>Panel Example</title>
<script language="C#" runat="server">
 
    void Page_Load(Object sender, EventArgs e) {
       Label l = new Label();
       l.Text = "This panel contains a label control.";
       Panel1.Controls.Add(l);
    }
     
    void Button1_Click(Object sender, EventArgs e) {
       if (Panel1.HorizontalAlign == HorizontalAlign.Left) {
          Panel1.HorizontalAlign = HorizontalAlign.Right;
          Button1.Text = "Left justify text within Panel";
       } 
       else {
          Panel1.HorizontalAlign = HorizontalAlign.Left;
          Button1.Text = "Right justify text within Panel";
       }
    }
    </script>
 
 </head>
 <body>
    <h3>Panel Example</h3>
    <form id="form1" runat="server">
 
       <asp:Panel id="Panel1" Height="200" Width="100" BackColor="Gainsboro"
            Wrap="True" HorizontalAlign="Right" runat="server"/>
 
       <br />
       <asp:Button id="Button1" OnClick="Button1_Click"
            Text="Left justify text within panel" runat="server"/>
 
    </form>
 </body>
 </html>
    
<%@ Page Language="VB" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
 <head>
    <title>Panel Example</title>
<script language="VB" runat="server">
 
    Sub Page_Load(sender As Object, e As EventArgs)
       Dim l As New Label()
       l.Text = "This panel contains a label control."
       Panel1.Controls.Add(l)
    End Sub
     
    Sub Button1_Click(sender As Object, e As EventArgs)
       If Panel1.HorizontalAlign = HorizontalAlign.Left Then
          Panel1.HorizontalAlign = HorizontalAlign.Right
          Button1.Text = "Left justify text within Panel"
       Else
          Panel1.HorizontalAlign = HorizontalAlign.Left
          Button1.Text = "Right justify text within Panel"
       End If
    End Sub
    
    </script>
 
 </head>
 <body>
    <h3>Panel Example</h3>
    <form id="form1" runat="server">
 
       <asp:Panel id="Panel1" Height="200" Width="100" BackColor="Gainsboro"
            Wrap="True" HorizontalAlign="Right" runat="server"/>
 
       <br />
       <asp:Button id="Button1" OnClick="Button1_Click"
            Text="Left justify text within panel" runat="server"/>
 
    </form>
 </body>
 </html>
    

注解

使用此属性指定 Panel中的元素的对齐方式。Use this property to specify the alignment of the elements in the Panel.

适用于

另请参阅