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Panel.HorizontalAlign Property

Gets or sets the horizontal alignment of the contents within the panel.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

'Declaration
Public Overridable Property HorizontalAlign As HorizontalAlign
<asp:Panel HorizontalAlign="HorizontalAlign" />

Property Value

Type: System.Web.UI.WebControls.HorizontalAlign
One of the HorizontalAlign values. The default is NotSet.

ExceptionCondition
ArgumentOutOfRangeException

The horizontal alignment is not one of the HorizontalAlign values.

Use this property to specify the alignment of the elements in the Panel.

TopicLocation
How to: Add Panel Web Server Controls to a Web Forms PageBuilding ASP .NET Web Applications
How to: Add Panel Web Server Controls to a Web Forms PageBuilding ASP .NET Web Applications

The following example illustrates how to right-align or left-align the controls within the Panel.

NoteNote

The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.

<%@ 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>
    

.NET Framework

Supported in: 4.5.3, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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