Style.BorderWidth Proprietà
Definizione
Importante
Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.
Ottiene o imposta la larghezza del bordo del controllo server Web.
public:
property System::Web::UI::WebControls::Unit BorderWidth { System::Web::UI::WebControls::Unit get(); void set(System::Web::UI::WebControls::Unit value); };[System.ComponentModel.Bindable(true)]
public System.Web.UI.WebControls.Unit BorderWidth { get; set; }public System.Web.UI.WebControls.Unit BorderWidth { get; set; }[<System.ComponentModel.Bindable(true)>]
member this.BorderWidth : System.Web.UI.WebControls.Unit with get, setmember this.BorderWidth : System.Web.UI.WebControls.Unit with get, setPublic Property BorderWidth As UnitValore della proprietà
Oggetto Unit che rappresenta la larghezza del bordo di un controllo server Web. Il valore predefinito è Empty, a indicare che questa proprietà non è impostata.
- Attributi
Eccezioni
È stato specificato un valore negativo per la larghezza del bordo.
Esempio
In questo esempio viene illustrato come utilizzare un Style oggetto per modificare le proprietà di stile di più controlli contemporaneamente. Ogni volta che uno dei valori della Style proprietà cambia, ogni controllo deve chiamare il relativo ApplyStyle metodo. Si noti che non tutti i controlli inclusi supportano tutte le proprietà illustrate. Se un controllo non supporta una proprietà specifica, l'aspetto del controllo non verrà modificato quando il valore della proprietà viene modificato.
Nota
L'esempio di codice seguente usa il modello di codice a file singolo e potrebbe non funzionare correttamente se copiato direttamente in un file code-behind. Questo esempio di codice deve essere copiato in un file di testo vuoto con estensione aspx. Per altre informazioni sul modello di codice Web Forms, vedere Web Forms ASP.NET Page Code Model.
<!-- -->
<!-- -->
<%@ 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>
Commenti
Utilizzare la BorderWidth proprietà per specificare una larghezza del bordo per un controllo .
Nota
Questa proprietà non funziona con tutti i controlli server Web. Si applica solo ai controlli visualizzati come tabella, ad esempio Table e DataGrid.
Questa proprietà viene impostata con un Unit oggetto . Se la Value proprietà di Unit contiene un numero negativo, viene generata un'eccezione.
Nota
La larghezza del bordo può essere espressa solo in pixel per i browser precedenti a Microsoft Internet Explorer versione 5. Tutti i tipi di unità sono supportati in Microsoft Internet Explorer versione 5 e successive. Per informazioni dettagliate, vedere il controllo specifico.
Si applica a
Vedi anche
Collabora con noi su GitHub
L'origine di questo contenuto è disponibile in GitHub, in cui è anche possibile creare ed esaminare i problemi e le richieste pull. Per ulteriori informazioni, vedere la guida per i collaboratori.
Commenti e suggerimenti
Presto disponibile: Nel corso del 2024 verranno gradualmente disattivati i problemi di GitHub come meccanismo di feedback per il contenuto e ciò verrà sostituito con un nuovo sistema di feedback. Per altre informazioni, vedere https://aka.ms/ContentUserFeedback.
Invia e visualizza il feedback per