共用方式為


Style.ForeColor 屬性

定義

取得或設定 Web 伺服器控制項的前景色彩 (通常是文字的色彩)。

public:
 property System::Drawing::Color ForeColor { System::Drawing::Color get(); void set(System::Drawing::Color value); };
[System.ComponentModel.Bindable(true)]
[System.ComponentModel.TypeConverter(typeof(System.Web.UI.WebControls.WebColorConverter))]
public System.Drawing.Color ForeColor { get; set; }
[System.ComponentModel.TypeConverter(typeof(System.Web.UI.WebControls.WebColorConverter))]
public System.Drawing.Color ForeColor { get; set; }
[<System.ComponentModel.Bindable(true)>]
[<System.ComponentModel.TypeConverter(typeof(System.Web.UI.WebControls.WebColorConverter))>]
member this.ForeColor : System.Drawing.Color with get, set
[<System.ComponentModel.TypeConverter(typeof(System.Web.UI.WebControls.WebColorConverter))>]
member this.ForeColor : System.Drawing.Color with get, set
Public Property ForeColor As Color

屬性值

Color,表示控制項的前景色彩。 預設為 Empty

屬性

範例

此範例示範如何使用 Style 物件一次變更多個控件的樣式屬性。 每次其中一個屬性值變更時 Style ,每個控件都必須呼叫其 ApplyStyle 方法。 請注意,並非所有包含的控件都支援示範的所有屬性。 如果控件不支援特定屬性,當屬性值變更時,控件的外觀將不會變更。

注意

下列程式代碼範例會使用單一檔案程式代碼模型,如果直接複製到程式代碼後置檔案,可能無法正常運作。 此程式代碼範例必須複製到擴展名為 .aspx的空文本檔。 如需 Web Forms 程式代碼模型的詳細資訊,請參閱 ASP.NET 網頁代碼模型

<!--  -->
<!-- -->
<%@ Page Language="C#" %>
<%@ 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 Style primaryStyle = new Style();

    void Page_Load(object sender, System.EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            // Add data to the borderColorList, 
            // backColorList, and foreColorList controls.
            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);
            borderColorList.DataSource = colors;
            borderColorList.DataBind();
            backColorList.DataSource = colors;
            backColorList.DataBind();
            foreColorList.DataSource = colors;
            foreColorList.DataBind();
            //<Snippet4>              

            // Add data to the borderStyleList control.
            ListItemCollection styles = new ListItemCollection();
            Type styleType = typeof(BorderStyle);
            foreach (string s in Enum.GetNames(styleType))
            {
                styles.Add(s);
            }
            borderStyleList.DataSource = styles;
            borderStyleList.DataBind();
            //</Snippet4>           

            // Add data to the borderWidthList control.
            ListItemCollection widths = new ListItemCollection();
            for (int i = 0; i < 11; i++)
            {
                widths.Add(i.ToString() + "px");
            }
            borderWidthList.DataSource = widths;
            borderWidthList.DataBind();

            // Add data to the fontNameList control.
            ListItemCollection names = new ListItemCollection();
            names.Add("Arial");
            names.Add("Courier");
            names.Add("Garamond");
            names.Add("Times New Roman");
            names.Add("Verdana");
            fontNameList.DataSource = names;
            fontNameList.DataBind();

            // Add data to the fontSizeList control.
            ListItemCollection fontSizes = new ListItemCollection();
            fontSizes.Add("Small");
            fontSizes.Add("Medium");
            fontSizes.Add("Large");
            fontSizes.Add("10pt");
            fontSizes.Add("14pt");
            fontSizes.Add("20pt");
            fontSizeList.DataSource = fontSizes;
            fontSizeList.DataBind();

            //Set primaryStyle as the style for each control.
            Label1.ApplyStyle(primaryStyle);
            ListBox1.ApplyStyle(primaryStyle);
            Button1.ApplyStyle(primaryStyle);
            Table1.ApplyStyle(primaryStyle);
            TextBox1.ApplyStyle(primaryStyle);
        }
    }
    //<Snippet5>
    void ChangeBorderColor(object sender, System.EventArgs e)
    {
        primaryStyle.BorderColor =
            Color.FromName(borderColorList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
    //</Snippet5>

    //<Snippet6>
    void ChangeBackColor(object sender, System.EventArgs e)
    {
        primaryStyle.BackColor =
            Color.FromName(backColorList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
    //</Snippet6>

    //<Snippet7>
    void ChangeForeColor(object sender, System.EventArgs e)
    {
        primaryStyle.ForeColor =
            Color.FromName(foreColorList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
    //</Snippet7>

    //<Snippet8>
    void ChangeBorderStyle(object sender, System.EventArgs e)
    {
        primaryStyle.BorderStyle =
            (BorderStyle)Enum.Parse(typeof(BorderStyle),
            borderStyleList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
    //</Snippet8>

    //<Snippet9>
    void ChangeBorderWidth(object sender, System.EventArgs e)
    {
        primaryStyle.BorderWidth =
            Unit.Parse(borderWidthList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
    //</Snippet9>

    //<Snippet10>
    void ChangeFont(object sender, System.EventArgs e)
    {
        primaryStyle.Font.Name =
            fontNameList.SelectedItem.Text;
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
    //</Snippet10>

    //<Snippet11>
    void ChangeFontSize(object sender, System.EventArgs e)
    {
        primaryStyle.Font.Size =
            FontUnit.Parse(fontSizeList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
    //</Snippet11>
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <table cellpadding="6" border="0">
        <tr>
            <td rowspan="10" style="border:solid 1px Gray">
                <p>
                    <asp:label id="Label1" 
                        Text="Border Properties Example" Runat="server">
                        Label Styles
                    </asp:label>
                </p>
                <p>
                    <asp:button id="Button1" runat="server" 
                        Text="Button Styles">
                    </asp:button>
                </p>
                <p>
                    <asp:listbox id="ListBox1" Runat="server">
                        <asp:ListItem Value="0" Text="List Item 0">
                        </asp:ListItem>
                        <asp:ListItem Value="1" Text="List Item 1">
                        </asp:ListItem>
                        <asp:ListItem Value="2" Text="List Item 2">
                        </asp:ListItem>
                    </asp:listbox>
                </p>
                <p>
                    <asp:textbox id="TextBox1" 
                        Text="TextBox Styles" Runat="server">
                    </asp:textbox>
                </p>
                <p>
                    <asp:table id="Table1" Runat="server">
                        <asp:TableRow>
                            <asp:TableCell Text="(0,0)"></asp:TableCell>
                            <asp:TableCell Text="(0,1)"></asp:TableCell>
                        </asp:TableRow>
                        <asp:TableRow>
                            <asp:TableCell Text="(1,0)"></asp:TableCell>
                            <asp:TableCell Text="(1,1)"></asp:TableCell>
                        </asp:TableRow>
                    </asp:table>
                </p>
            </td>
            <td align="right">
                <asp:Label ID="Label2" runat="server" 
                    AssociatedControlID="borderColorList" 
                    Text="Border Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderColorList" 
                    Runat="server" AutoPostBack="True" 
                    OnSelectedIndexChanged="ChangeBorderColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label3" Runat="server" 
                    AssociatedControlID="borderStyleList"
                    Text="Border Style:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderStyleList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBorderStyle">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label4" Runat="server" 
                    AssociatedControlID="borderWidthList"
                    Text="Border Width">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderWidthList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBorderWidth">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label5" Runat="server" 
                    AssociatedControlID="backColorList"
                    Text="Back Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="backColorList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBackColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label6" Runat="server" 
                    AssociatedControlID="foreColorList"
                    Text="Foreground Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="foreColorList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeForeColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label7" Runat="server" 
                    AssociatedControlID="fontNameList"
                    Text="Font Name:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="fontNameList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeFont">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label8" Runat="server" 
                    AssociatedControlID="fontSizeList"
                    Text="Font Size:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="fontSizeList" 
                    Runat="server" AutoPostBack="True" 
                    OnSelectedIndexChanged="ChangeFontSize">
                </asp:dropdownlist>
            </td>
        </tr>
    </table>

    </div>
    </form>
</body>
</html>
<%@ Page Language="VB" %>
<%@ 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 primaryStyle As New Style()

    Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        If Not Page.IsPostBack Then
            ' Add data to the borderColorList, 
            ' backColorList, and foreColorList controls.
            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)
            borderColorList.DataSource = colors
            borderColorList.DataBind()
            backColorList.DataSource = colors
            backColorList.DataBind()
            foreColorList.DataSource = colors
            foreColorList.DataBind()
                
            '<Snippet4>
            ' Add data to the borderStyleList control.
            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
            borderStyleList.DataSource = styles
            borderStyleList.DataBind()
            '</Snippet4>           

            ' Add data to the borderWidthList control.
            Dim widths As New ListItemCollection()
            Dim i As Integer
            For i = 0 To 10
                widths.Add(i.ToString() & "px")
            Next i
            borderWidthList.DataSource = widths
            borderWidthList.DataBind()

            ' Add data to the fontNameList control.
            Dim names As New ListItemCollection()
            names.Add("Arial")
            names.Add("Courier")
            names.Add("Garamond")
            names.Add("Times New Roman")
            names.Add("Verdana")
            fontNameList.DataSource = names
            fontNameList.DataBind()

            ' Add data to the fontSizeList control.
            Dim fontSizes As New ListItemCollection()
            fontSizes.Add("Small")
            fontSizes.Add("Medium")
            fontSizes.Add("Large")
            fontSizes.Add("10pt")
            fontSizes.Add("14pt")
            fontSizes.Add("20pt")
            fontSizeList.DataSource = fontSizes
            fontSizeList.DataBind()
                    
            ' Set primaryStyle as the style for each control.
            Label1.ApplyStyle(primaryStyle)
            ListBox1.ApplyStyle(primaryStyle)
            Button1.ApplyStyle(primaryStyle)
            Table1.ApplyStyle(primaryStyle)
            TextBox1.ApplyStyle(primaryStyle)
        End If
    End Sub

    '<Snippet5>
    Sub ChangeBorderColor(ByVal sender As Object, ByVal e As System.EventArgs)
        primaryStyle.BorderColor = _
            Color.FromName(borderColorList.SelectedItem.Text)
        Label1.ApplyStyle(primaryStyle)
        ListBox1.ApplyStyle(primaryStyle)
        Button1.ApplyStyle(primaryStyle)
        Table1.ApplyStyle(primaryStyle)
        TextBox1.ApplyStyle(primaryStyle)
    End Sub
    '</Snippet5>

    '<Snippet6>    
    Sub ChangeBackColor(ByVal sender As Object, ByVal e As System.EventArgs)
        primaryStyle.BackColor = _
            Color.FromName(backColorList.SelectedItem.Text)
        Label1.ApplyStyle(primaryStyle)
        ListBox1.ApplyStyle(primaryStyle)
        Button1.ApplyStyle(primaryStyle)
        Table1.ApplyStyle(primaryStyle)
        TextBox1.ApplyStyle(primaryStyle)
    End Sub
    '</Snippet6>

    '<Snippet7>
    Sub ChangeForeColor(ByVal sender As Object, ByVal e As System.EventArgs)
        primaryStyle.ForeColor = _
            Color.FromName(foreColorList.SelectedItem.Text)
        Label1.ApplyStyle(primaryStyle)
        ListBox1.ApplyStyle(primaryStyle)
        Button1.ApplyStyle(primaryStyle)
        Table1.ApplyStyle(primaryStyle)
        TextBox1.ApplyStyle(primaryStyle)
    End Sub
    '</Snippet7>

    '<Snippet8>
    Sub ChangeBorderStyle(ByVal sender As Object, ByVal e As System.EventArgs)
        primaryStyle.BorderStyle = _
            CType([Enum].Parse(GetType(BorderStyle), _
            borderStyleList.SelectedItem.Text), BorderStyle)
        Label1.ApplyStyle(primaryStyle)
        ListBox1.ApplyStyle(primaryStyle)
        Button1.ApplyStyle(primaryStyle)
        Table1.ApplyStyle(primaryStyle)
        TextBox1.ApplyStyle(primaryStyle)
    End Sub
    '</Snippet8>

    '<Snippet9>
    Sub ChangeBorderWidth(ByVal sender As Object, ByVal e As System.EventArgs)
        primaryStyle.BorderWidth = _
            Unit.Parse(borderWidthList.SelectedItem.Text)
        Label1.ApplyStyle(primaryStyle)
        ListBox1.ApplyStyle(primaryStyle)
        Button1.ApplyStyle(primaryStyle)
        Table1.ApplyStyle(primaryStyle)
        TextBox1.ApplyStyle(primaryStyle)
    End Sub
    '</Snippet9>

    '<Snippet10>
    Sub ChangeFont(ByVal sender As Object, ByVal e As System.EventArgs)
        primaryStyle.Font.Name = _
            fontNameList.SelectedItem.Text
        Label1.ApplyStyle(primaryStyle)
        ListBox1.ApplyStyle(primaryStyle)
        Button1.ApplyStyle(primaryStyle)
        Table1.ApplyStyle(primaryStyle)
        TextBox1.ApplyStyle(primaryStyle)
    End Sub
    '</Snippet10>

    '<Snippet11>
    Sub ChangeFontSize(ByVal sender As Object, ByVal e As System.EventArgs)
        primaryStyle.Font.Size = _
            FontUnit.Parse(fontSizeList.SelectedItem.Text)
        Label1.ApplyStyle(primaryStyle)
        ListBox1.ApplyStyle(primaryStyle)
        Button1.ApplyStyle(primaryStyle)
        Table1.ApplyStyle(primaryStyle)
        TextBox1.ApplyStyle(primaryStyle)
    End Sub
    '</Snippet11>
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Applied Style Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <table cellpadding="6" border="0">
        <tr>
            <td rowspan="10" style="border:solid 1px Gray">
                <p>
                    <asp:label id="Label1" 
                        Text="Border Properties Example" Runat="server">
                        Label Styles
                    </asp:label>
                </p>
                <p>
                    <asp:button id="Button1" runat="server" 
                        Text="Button Styles">
                    </asp:button>
                </p>
                <p>
                    <asp:listbox id="ListBox1" Runat="server">
                        <asp:ListItem Value="0" Text="List Item 0">
                        </asp:ListItem>
                        <asp:ListItem Value="1" Text="List Item 1">
                        </asp:ListItem>
                        <asp:ListItem Value="2" Text="List Item 2">
                        </asp:ListItem>
                    </asp:listbox>
                </p>
                <p>
                    <asp:textbox id="TextBox1" 
                        Text="TextBox Styles" Runat="server">
                    </asp:textbox>
                </p>
                <p>
                    <asp:table id="Table1" Runat="server">
                        <asp:TableRow>
                            <asp:TableCell Text="(0,0)"></asp:TableCell>
                            <asp:TableCell Text="(0,1)"></asp:TableCell>
                        </asp:TableRow>
                        <asp:TableRow>
                            <asp:TableCell Text="(1,0)"></asp:TableCell>
                            <asp:TableCell Text="(1,1)"></asp:TableCell>
                        </asp:TableRow>
                    </asp:table>
                </p>
            </td>
            <td align="right">
                <asp:Label ID="Label2" runat="server" 
                    AssociatedControlID="borderColorList" 
                    Text="Border Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderColorList" 
                    Runat="server" AutoPostBack="True" 
                    OnSelectedIndexChanged="ChangeBorderColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label3" Runat="server" 
                    AssociatedControlID="borderStyleList"
                    Text="Border Style:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderStyleList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBorderStyle">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label4" Runat="server" 
                    AssociatedControlID="borderWidthList"
                    Text="Border Width">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderWidthList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBorderWidth">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label5" Runat="server" 
                    AssociatedControlID="backColorList"
                    Text="Back Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="backColorList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBackColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label6" Runat="server" 
                    AssociatedControlID="foreColorList"
                    Text="Foreground Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="foreColorList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeForeColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label7" Runat="server" 
                    AssociatedControlID="fontNameList"
                    Text="Font Name:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="fontNameList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeFont">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label8" Runat="server" 
                    AssociatedControlID="fontSizeList"
                    Text="Font Size:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="fontSizeList" 
                    Runat="server" AutoPostBack="True" 
                    OnSelectedIndexChanged="ChangeFontSize">
                </asp:dropdownlist>
            </td>
        </tr>
    </table>

    </div>
    </form>
</body>
</html>

備註

ForeColor使用屬性來指定 Web 伺服器控制件的前景色彩。 前景色彩通常是文字的色彩。 除了 、 AdRotatorHyperLinkLinkButton以外Image,這個屬性會在 Microsoft Internet Explorer 第 4 版之前的瀏覽器上轉譯。

注意

在不支持樣式的瀏覽器中,此屬性會轉譯為FONT元素。

適用於

另請參閱