WebControl.BorderColor プロパティ
Web コントロールの境界線の色を取得または設定します。
Public Overridable Property BorderColor As Color
[C#]
public virtual Color BorderColor {get; set;}
[C++]
public: __property virtual Color get_BorderColor();public: __property virtual void set_BorderColor(Color);
[JScript]
public function get BorderColor() : Color;public function set BorderColor(Color);
プロパティ値
コントロールの境界線の色を表す System.Drawing.Color 。既定値は Color.Empty です。このプロパティが設定されていないことを示します。
解説
BorderColor プロパティを使用して、Web サーバー コントロールの境界線の色を指定します。このプロパティは、 System.Drawing.Color オブジェクトを使用して設定されます。
メモ このプロパティは、特定のコントロールだけに表示されます。たとえば、 Table 、 Panel 、 DataGrid 、 Calendar 、 ValidationSummary などには、このプロパティが表示されます。また、このプロパティは、 RepeatLayout プロパティが RepeatLayout.Table に設定され、 RepeatLayout.Flow でない場合は、 CheckBoxList 、 RadioButtonList および DataList でも機能します。ただし、このプロパティは、HTML 3.2 標準には含まれない、 bordercolor 属性として表示されます。この属性は、Microsoft Internet Explorer Version 3 以降では機能しますが、他のほとんどのブラウザでは機能しません。
使用例
[Visual Basic, C#, JScript] WebControl 基本クラスから継承された、 Table コントロールの BorderColor プロパティの設定方法の例を次に示します。
<%@ Page Language="VB" AutoEventWireup="True" %>
<html>
<body>
<h3>BorderColor Property of a Web Control</h3>
<form runat=server>
<asp:Table id="Table1" runat="server"
CellPadding=10
GridLines="Both"
BorderColor="Brown"
>
<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>
</form>
</body>
</html>
[C#]
<%@ Page Language="C#" AutoEventWireup="True" %>
<html>
<body>
<h3>BorderColor Property of a Web Control</h3>
<form runat=server>
<asp:Table id="Table1" runat="server"
CellPadding=10
GridLines="Both"
BorderColor="Brown"
>
<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>
</form>
</body>
</html>
[JScript]
<%@ Page Language="JScript" AutoEventWireup="True" %>
<html>
<body>
<h3>BorderColor Property of a Web Control</h3>
<form runat=server>
<asp:Table id="Table1" runat="server"
CellPadding=10
GridLines="Both"
BorderColor="Brown"
>
<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>
</form>
</body>
</html>
[Visual Basic]
<!-- 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="VB" AutoEventWireup="true" %>
<%@ Import Namespace="System.Drawing" %>
<HTML>
<HEAD>
<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
' 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)
' 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)
' 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)
End Sub
' This method handles the selectedIndexChanged event for boderStyleList.
Public Sub ChangeBorderStyle(sender As Object, e As System.EventArgs)
' 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)
End Sub
' This method handles the SelectedIndexChanged event for borderWidthList.
Public Sub ChangeBorderWidth(sender As Object, e As System.EventArgs)
' 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)
End Sub
</SCRIPT>
</HEAD>
<BODY>
<form 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>
[C#]
<!-- 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" %>
<HTML>
<HEAD>
<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)
{
// 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);
// 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)
{
// 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);
}
// This method handles the selectedIndexChanged event for boderStyleList.
public void ChangeBorderStyle(object sender, System.EventArgs e)
{
// 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);
}
// This method handles the SelectedIndexChanged event for borderWidthList.
public void ChangeBorderWidth(object sender, System.EventArgs e)
{
// 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);
}
</SCRIPT>
</HEAD>
<BODY>
<form 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>
[C++] C++ のサンプルはありません。Visual Basic、C#、および JScript のサンプルを表示するには、このページの左上隅にある言語のフィルタ ボタン .gif)
をクリックします。
必要条件
プラットフォーム: Windows 2000, Windows XP Professional, Windows Server 2003 ファミリ
参照
WebControl クラス | WebControl メンバ | System.Web.UI.WebControls 名前空間 | System.Drawing.Color | Style | Table | Panel | DataGrid | Calendar | ValidationSummary | CheckBoxList | RadioButtonList | DataList | RepeatLayout