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Style Конструкторы

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Определение

Пространство имен:
System.Web.UI.WebControls
Сборка:
System.Web.dll

Инициализирует новый экземпляр класса Style.

Перегрузки

Style()

Инициализирует новый экземпляр класса Style со значениями по умолчанию.
Style(StateBag)

Инициализирует новый экземпляр класса Style с указанными сведениями о наборе состояний.

Style()

Инициализирует новый экземпляр класса Style со значениями по умолчанию.

public:
 Style();
public Style ();
Public Sub New ()

Примеры

В этом примере показано, как использовать Style объект для одновременного изменения свойств стиля нескольких элементов управления. При каждом изменении одного из значений Style свойств каждый элемент управления должен вызывать свой ApplyStyle метод. Обратите внимание, что не все включенные элементы управления поддерживают все продемонстрированные свойства. Если элемент управления не поддерживает определенное свойство, внешний вид элемента управления не изменится при изменении значения свойства.

Примечание

В следующем примере кода используется однофайловая модель кода, и при копировании непосредственно в файл кода программной части может работать неправильно. Этот пример кода необходимо скопировать в пустой текстовый файл с расширением .aspx. Дополнительные сведения о модели кода веб-форм см. в разделе модель кода веб-форм ASP.NET.

<!--  -->

<!-- -->

<%@ 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>

Комментарии

Используйте этот конструктор для создания и инициализации нового экземпляра Style класса .

Применяется к

Style(StateBag)

Инициализирует новый экземпляр класса Style с указанными сведениями о наборе состояний.

public:
 Style(System::Web::UI::StateBag ^ bag);
public Style (System.Web.UI.StateBag bag);
new System.Web.UI.WebControls.Style : System.Web.UI.StateBag -> System.Web.UI.WebControls.Style
Public Sub New (bag As StateBag)

Параметры

bag
StateBag

Объект StateBag, представляющий набор состояний, в котором хранятся сведения о стиле.

Комментарии

Используйте этот конструктор для создания и инициализации нового экземпляра Style класса с помощью объекта , System.Web.UI.StateBag указанного параметром bag .

См. также раздел

Применяется к