WebControl.BorderStyle WebControl.BorderStyle WebControl.BorderStyle WebControl.BorderStyle Property

定义

获取或设置 Web 服务器控件的边框样式。Gets or sets the border style of the Web server control.

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

属性值

BorderStyle 枚举值之一。One of the BorderStyle enumeration values. 默认值为 NotSetThe default is NotSet.

示例

下面的示例演示如何设置继承自BorderStyle WebControl基类的Table控件的属性。The following example illustrates how to set the BorderStyle property of the Table control, which is inherited from the WebControl base class.

<%@ 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">
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>BorderStyle Property</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h3>BorderStyle Property of a Web Control</h3>
 
        <asp:Table id="Table1" runat="server"
            CellPadding = "10" 
            CellSpacing="0"
            GridLines="Both"
            BorderWidth="3"
            BorderColor="Red"
            BorderStyle="dashed">

            <asp:TableRow>
                <asp:TableCell>
                    Row 0, Col 0
                </asp:TableCell>
                <asp:TableCell>
                    Row 0, Col 1
                </asp:TableCell>
            </asp:TableRow>

            <asp:TableRow>
                <asp:TableCell>
                    Row 1, Col 0
                </asp:TableCell>
                <asp:TableCell>
                    Row 1, Col 1
                </asp:TableCell>
            </asp:TableRow>
        </asp:Table>
    </div>
    </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">
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>BorderStyle Property</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h3>BorderStyle Property of a Web Control</h3>
 
        <asp:Table id="Table1" runat="server"
            CellPadding = "10" 
            CellSpacing="0"
            GridLines="Both"
            BorderWidth="3"
            BorderColor="Red"
            BorderStyle="dashed">

            <asp:TableRow>
                <asp:TableCell>
                    Row 0, Col 0
                </asp:TableCell>
                <asp:TableCell>
                    Row 0, Col 1
                </asp:TableCell>
            </asp:TableRow>

            <asp:TableRow>
                <asp:TableCell>
                    Row 1, Col 0
                </asp:TableCell>
                <asp:TableCell>
                    Row 1, Col 1
                </asp:TableCell>
            </asp:TableRow>
        </asp:Table>
    </div>
    </form>
</body>
</html>

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.

<!-- This example demonstrates how to set property values for the
BorderColor, BorderStyle, and BorderWidth properties, and how to 
change the property values at run time. -->

<!-- This example demonstrates how to set property values for the
BorderColor, BorderStyle, and BorderWidth properties, and how to 
change the property values at run time. -->

<%@ Page language="c#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    private void Page_Load(object sender, System.EventArgs e)
    {
        // Determine whether this is the first time the page is loaded;
        // if so, load the drop-down lists with data.
        if (!Page.IsPostBack)
        {
// <Snippet4>
            // Create a ListItemCollection and add names of colors.
            ListItemCollection colors = new ListItemCollection();
            colors.Add(Color.Black.Name);
            colors.Add(Color.Blue.Name);
            colors.Add(Color.Green.Name);
            colors.Add(Color.Orange.Name);
            colors.Add(Color.Purple.Name);
            colors.Add(Color.Red.Name);
            colors.Add(Color.White.Name);
            colors.Add(Color.Yellow.Name);
// </Snippet4>
            // Bind the colors collection to the borderColorList.
            borderColorList.DataSource = colors;
            borderColorList.DataBind();

            // Create a ListItemCollection and the add names of 
            // the BorderStyle enumeration values.
            ListItemCollection styles = new ListItemCollection();

            foreach (string s in Enum.GetNames(typeof(BorderStyle)))
            {
                styles.Add(s);
            }

            // Bind the styles collection to the borderStyleList.
            borderStyleList.DataSource = styles;
            borderStyleList.DataBind();

            // Create a ListItemCollection and add width values
            // expressed in pixels (px).
            ListItemCollection widths = new ListItemCollection();

            for (int i = 0; i < 11; i++)
            {
                widths.Add(i.ToString() + "px");
            }

            // Bind the widths collection to the borderWidthList.
            borderWidthList.DataSource = widths;
            borderWidthList.DataBind();
        }

    }

    // This method handles the SelectedIndexChanged event for borderColorList.
    public void ChangeBorderColor(object sender, System.EventArgs e)
    {
// <Snippet5>
        // Convert the color name string to an object of type Color, 
        // and set the Color as the new border color for Label1.
        Label1.BorderColor = Color.FromName(borderColorList.SelectedItem.Text);
// </Snippet5>
    }

    // This method handles the selectedIndexChanged event for boderStyleList.
    public void ChangeBorderStyle(object sender, System.EventArgs e)
    {
// <Snippet6>
        // Convert the style name string to a BorderStyle enumeration value,
        // and set the BorderStyle as the new border style for Label1.
        Label1.BorderStyle = (BorderStyle)Enum.Parse(typeof(BorderStyle),
                              borderStyleList.SelectedItem.Text);
// </Snippet6>
    }

    // This method handles the SelectedIndexChanged event for borderWidthList.
    public void ChangeBorderWidth(object sender, System.EventArgs e)
    {
// <Snippet7>
        // Convert the border width string to a object of type Unit,
        // and set the Unit as the new border width for Label1.
        Label1.BorderWidth = Unit.Parse(borderWidthList.SelectedItem.Text);
// </Snippet7>
    }
    </script>
<html xmlns="http://www.w3.org/1999/xhtml" >
    <head>
    <title> Border Properties Example </title>
</head>

    <body>
        <form id="form1" runat="server">

            <h3> Border Properties Example </h3>

            <table border="0" cellpadding="6">
                <tr>
                    <td>
                        <asp:Label Runat="server" BorderColor="Black" 
                            BorderStyle="Solid" BorderWidth="4px" ID="Label1" 
                            Text="Border Properties Example" Height="75" 
                            Width="200"><center><br />Border Properties Example
                            </center></asp:Label>
                    </td>

                    <td>
                        <asp:DropDownList Runat="server" ID="borderColorList" 
                            OnSelectedIndexChanged="ChangeBorderColor" AutoPostBack="True" 
                            EnableViewState="True"></asp:DropDownList>
                        <br />
                        <br />
                        <asp:DropDownList Runat="server" ID="borderStyleList" 
                            OnSelectedIndexChanged="ChangeBorderStyle" AutoPostBack="True" 
                            EnableViewState="True"></asp:DropDownList>
                        <br />            
                        <br />
                        <asp:DropDownList Runat="server" ID="borderWidthList" 
                            OnSelectedIndexChanged="ChangeBorderWidth" AutoPostBack="True"
                            EnableViewState="True"></asp:DropDownList>
                    </td>
                </tr>
            </table>
        </form>
    </body>
</html>
<%@ Page language="VB" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    Private Sub Page_Load(sender As Object, e As System.EventArgs)
        ' Determine whether this is the first time the page is loaded;
        ' if so, load the drop-down lists with data.
        If Not Page.IsPostBack Then
'<Snippet4>
            ' Create a ListItemCollection and add names of colors.
            Dim colors As New ListItemCollection()
            colors.Add(Color.Black.Name)
            colors.Add(Color.Blue.Name)
            colors.Add(Color.Green.Name)
            colors.Add(Color.Orange.Name)
            colors.Add(Color.Purple.Name)
            colors.Add(Color.Red.Name)
            colors.Add(Color.White.Name)
            colors.Add(Color.Yellow.Name)
'</Snippet4>
            ' Bind the colors collection to the borderColorList.
            borderColorList.DataSource = colors
            borderColorList.DataBind()

            ' Create a ListItemCollection and the add names of 
            ' the BorderStyle enumeration values.
            Dim styles As New ListItemCollection()
            Dim styleType As Type = GetType(BorderStyle)

            Dim s As String
            For Each s In  [Enum].GetNames(styleType)
                styles.Add(s)
            Next s

            ' Bind the styles collection to the borderStyleList.
            borderStyleList.DataSource = styles
            borderStyleList.DataBind()

            ' Create a ListItemCollection and add width values
            ' expressed in pixels (px).
            Dim widths As New ListItemCollection()

            Dim i As Integer
            For i = 0 To 10
                widths.Add(i.ToString() & "px")
            Next i

            ' Bind the widths collection to the borderWidthList.
            borderWidthList.DataSource = widths
            borderWidthList.DataBind()
        End If
    End Sub

    ' This method handles the SelectedIndexChanged event for borderColorList.
    Public Sub ChangeBorderColor(sender As Object, e As System.EventArgs)
'<Snippet5>
        ' Convert the color name string to an object of type Color, 
        ' and set the Color as the new border color for Label1.
        Label1.BorderColor = Color.FromName(borderColorList.SelectedItem.Text)
'</Snippet5>
    End Sub

    ' This method handles the selectedIndexChanged event for boderStyleList.
    Public Sub ChangeBorderStyle(sender As Object, e As System.EventArgs)
'<Snippet6>
        ' Convert the style name string to a BorderStyle enumeration value,
        ' and set the BorderStyle as the new border style for Label1.
        Dim styleType As Type = GetType(BorderStyle)
        Label1.BorderStyle = [Enum].Parse(styleType, borderStyleList.SelectedItem.Text)
'</Snippet6>
    End Sub

    ' This method handles the SelectedIndexChanged event for borderWidthList.
    Public Sub ChangeBorderWidth(sender As Object, e As System.EventArgs)
'<Snippet7>
        ' Convert the border width string to a object of type Unit,
        ' and set the Unit as the new border width for Label1.
        Label1.BorderWidth = Unit.Parse(borderWidthList.SelectedItem.Text)
'</Snippet7>
    End Sub
    </script>
<html xmlns="http://www.w3.org/1999/xhtml" >
    <head>
    <title> Border Properties Example </title>
</head>

    <body>
        <form id="form1" runat="server">

            <h3> Border Properties Example </h3>

            <table border="0" cellpadding="6">
                <tr>
                    <td>
                        <asp:Label Runat="server" BorderColor="Black" 
                            BorderStyle="Solid" BorderWidth="4px" ID="Label1" 
                            Text="Border Properties Example" Height="75" 
                            Width="200"><center><br />Border Properties Example
                            </center></asp:Label>
                    </td>

                    <td>
                        <asp:DropDownList Runat="server" ID="borderColorList" 
                            OnSelectedIndexChanged="ChangeBorderColor" AutoPostBack="True" 
                            EnableViewState="True"></asp:DropDownList>
                        <br />
                        <br />
                        <asp:DropDownList Runat="server" ID="borderStyleList" 
                            OnSelectedIndexChanged="ChangeBorderStyle" AutoPostBack="True" 
                            EnableViewState="True"></asp:DropDownList>
                        <br />            
                        <br />
                        <asp:DropDownList Runat="server" ID="borderWidthList" 
                            OnSelectedIndexChanged="ChangeBorderWidth" AutoPostBack="True"
                            EnableViewState="True"></asp:DropDownList>
                    </td>
                </tr>
            </table>
        </form>
    </body>
</html>

注解

BorderStyle使用属性指定 Web 服务器控件的边框样式。Use the BorderStyle property to specify the border style for the Web server control. 使用BorderStyle枚举值之一设置此属性。This property is set using one of the BorderStyle enumeration values. 下表列出了可能的值。The following table lists the possible values.

边框样式Border Style 说明Description
NotSet 未设置边框样式。The border style is not set.
None 无边框No border
Dotted 虚线边框。A dotted line border.
Dashed 点划线边框。A dashed line border.
Solid 实线边框。A solid line border.
Double 实线双线边框。A solid double line border.
Groove 用于凹陷边框外观的凹槽状边框。A grooved border for a sunken border appearance.
Ridge 用于凸起边框外观的突起边框。A ridged border for a raised border appearance.
Inset 用于凹陷控件外观的内嵌边框。An inset border for a sunken control appearance.
Outset 用于凸起控件外观的外嵌边框。An outset border for a raised control appearance.

备注

对于任何 Web 服务器控件,此属性将不会在 Microsoft Internet Explorer 4 之前的浏览器中呈现。This property will not render on browsers earlier than Microsoft Internet Explorer 4 for any Web server control. HTML 3.2 中没有等效项。There is no equivalent to it in HTML 3.2.

适用于

另请参阅