DropDownList.BorderColor-Eigenschaft

Artikel
08/20/2007

Ruft die Rahmenfarbe des Steuerelements ab oder legt diese fest.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)

Syntax

'Declaration
Public Overrides Property BorderColor As Color
'Usage
Dim instance As DropDownList
Dim value As Color

value = instance.BorderColor

instance.BorderColor = value

public override Color BorderColor { get; set; }

public:
virtual property Color BorderColor {
    Color get () override;
    void set (Color value) override;
}

/** @property */
public Color get_BorderColor ()

/** @property */
public void set_BorderColor (Color value)

public override function get BorderColor () : Color

public override function set BorderColor (value : Color)

Eigenschaftenwert

Eine System.Drawing.Color, die die Rahmenfarbe des Steuerelements darstellt.

Hinweise

Hinweis

Die BorderColor-Eigenschaft wird von der WebControl-Klasse geerbt und ist nicht auf das DropDownList-Steuerelement anwendbar.

Beispiel

Im folgenden Codebeispiel wird veranschaulicht, wie die BorderColor-Eigenschaft in einem benutzerdefinierten DropDownList-Steuerelement abgerufen oder festgelegt wird.

<%@ Page Language="VB" AutoEventWireup="True" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<HTML>
    <HEAD>
        <title>Custom DropDownList - BorderColor - VB.NET Example</title>
        <script runat="server">
            Sub Page_Load(sender As Object, e As EventArgs)
                DropDownList1.Items.Add(New ListItem("Item1", "Item1"))
                DropDownList1.Items.Add(New ListItem("Item2", "Item2"))
                DropDownList1.Items.Add(New ListItem("Item2", "Item2"))
            End Sub
        </script>
    </HEAD>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom DropDownList - BorderColor - VB.NET Example</h3>
            <aspSample:CustomDropDownListBorderColor id="DropDownList1" runat="server" />
        </form>
    </body>
</HTML>

...
Imports System.Web
Imports System.Security.Permissions

Namespace Samples.AspNet.VB.Controls
    <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
    Public NotInheritable Class CustomDropDownListBorderColor
        Inherits System.Web.UI.WebControls.DropDownList

        Public Overrides Property BorderColor() As System.Drawing.Color
            ' NOTE: The BorderColor property is inherited from the WebControl 
            ' class and is not applicable to the DropDownList control. 
            Get
                Return MyBase.BorderColor
            End Get
            Set(ByVal Value As System.Drawing.Color)
                MyBase.BorderColor = Value
            End Set
        End Property

        Public Overrides Property BorderStyle() As System.Web.UI.WebControls.BorderStyle
            ' NOTE: The BorderStyle property is inherited from the WebControl 
            ' class and is not applicable to the DropDownList control. 
            Get
                Return MyBase.BorderStyle
            End Get
            Set(ByVal Value As System.Web.UI.WebControls.BorderStyle)
                MyBase.BorderStyle = Value
            End Set
        End Property

        Public Overrides Property BorderWidth() As System.Web.UI.WebControls.Unit
            ' NOTE: The BorderWidth property is inherited from the WebControl 
            ' class and is not applicable to the DropDownList control. 
            Get
                Return MyBase.BorderWidth
            End Get
            Set(ByVal Value As System.Web.UI.WebControls.Unit)
                MyBase.BorderWidth = Value
            End Set
        End Property

        Public Overrides Property ToolTip() As String
            ' NOTE: The ToolTip property is inherited from the WebControl 
            ' class and is not applicable to the DropDownList control. 
            Get
                Return MyBase.ToolTip
            End Get
            Set(ByVal Value As String)
                MyBase.ToolTip = Value
            End Set
        End Property
    End Class
End Namespace

<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<HTML>
  <HEAD>
    <title>Custom DropDownList - BorderColor - C# Example</title>
    <script runat="server">
      private void Page_Load(object sender, System.EventArgs e)
      {
          DropDownList1.Items.Add(new ListItem("Item1", "Item1"));
          DropDownList1.Items.Add(new ListItem("Item2", "Item2"));
          DropDownList1.Items.Add(new ListItem("Item2", "Item2"));
      }
    </script>
  </HEAD>
  <body>
      <form id="Form1" method="post" runat="server">
          <h3>Custom DropDownList - BorderColor - C# Example</h3>

          <aspSample:CustomDropDownListBorderColor
          id="DropDownList1"
          runat="server" />

      </form>
  </body>
</HTML>

...
using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
    [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
    public sealed class CustomDropDownListBorderColor : System.Web.UI.WebControls.DropDownList
    {
    [System.ComponentModel.Browsable(false)]
    public override System.Drawing.Color BorderColor
    {
      // NOTE: The BorderColor property is inherited from the WebControl 
      // class and is not applicable to the DropDownList control. 
      get
      {
        return base.BorderColor;
      }
      set
      {
        base.BorderColor = value;
      }
    }

    public override System.Web.UI.WebControls.BorderStyle BorderStyle
    {
      // NOTE: The BorderStyle property is inherited from the WebControl 
      // class and is not applicable to the DropDownList control. 
      get
      {
        return base.BorderStyle;
      }
      set
      {
        base.BorderStyle = value;
      }
    }

    public override System.Web.UI.WebControls.Unit BorderWidth
    {
      // NOTE: The BorderWidth property is inherited from the WebControl 
      // class and is not applicable to the DropDownList control. 
      get
      {
        return base.BorderWidth;
      }
      set
      {
        base.BorderWidth = value;
      }
    }

    public override string ToolTip
    {
      // NOTE: The ToolTip property is inherited from the WebControl 
      // class and is not applicable to the DropDownList control. 
      get
      {
        return base.ToolTip;
      }
      set
      {
        base.ToolTip = value;
      }
    }
  }
}

<%@ Page Language="VJ#" AutoEventWireup="True" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %>
<HTML>
  <HEAD>
    <title>Custom DropDownList - BorderColor - VJ# Example</title>
    <script runat="server">
        
    private void Page_Load(Object sender, System.EventArgs e)
    {
        DropDownList1.get_Items().Add(new ListItem("Item1", "Item1"));
        DropDownList1.get_Items().Add(new ListItem("Item2", "Item2"));
        DropDownList1.get_Items().Add(new ListItem("Item2", "Item2"));
    } //Page_Load
    </script>
  </HEAD>
  <body>
      <form id="Form1" method="post" runat="server">
          <h3>Custom DropDownList - BorderColor - VJ# Example</h3>

          <aspSample:CustomDropDownListBorderColor
          id="DropDownList1"
          runat="server" />

      </form>
  </body>
</HTML>

...
package Samples.AspNet.JSL.Controls;

public class CustomDropDownListBorderColor
    extends System.Web.UI.WebControls.DropDownList
{
    /** @attribute System.ComponentModel.Browsable(false)
     */
    // NOTE: The BorderColor property is inherited from the WebControl 
    // class and is not applicable to the DropDownList control.
    /** @property 
     */     
    public System.Drawing.Color get_BorderColor()        
    {
        return super.get_BorderColor();
    } //get_BorderColor

    /** @property 
     */
    public void set_BorderColor(System.Drawing.Color value)
    {
        super.set_BorderColor(value);
    } //set_BorderColor

    // NOTE: The BorderStyle property is inherited from the WebControl 
    // class and is not applicable to the DropDownList control.
    /** @property 
     */    
    public System.Web.UI.WebControls.BorderStyle get_BorderStyle()       
    {
        return super.get_BorderStyle();
    } //get_BorderStyle

    /** @property 
     */
    public void set_BorderStyle(System.Web.UI.WebControls.BorderStyle value)
    {
        super.set_BorderStyle(value);
    } //set_BorderStyle

    // NOTE: The BorderWidth property is inherited from the WebControl 
    // class and is not applicable to the DropDownList control.
    /** @property 
     */    
    public System.Web.UI.WebControls.Unit get_BorderWidth()         
    {
        return super.get_BorderWidth();
    } //get_BorderWidth

    /** @property 
     */
    public void set_BorderWidth(System.Web.UI.WebControls.Unit value)
    {
        super.set_BorderWidth(value);
    } //set_BorderWidth

    // NOTE: The ToolTip property is inherited from the WebControl 
    // class and is not applicable to the DropDownList control.
    /** @property 
     */    
    public String get_ToolTip()         
    {
        return super.get_ToolTip();
    } //get_ToolTip

    /** @property 
     */
    public void set_ToolTip(String value)
    {
        super.set_ToolTip(value);
    } //set_ToolTip
} //CustomDropDownListBorderColor

Plattformen

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Freigeben über

DropDownList.BorderColor-Eigenschaft

Syntax

Eigenschaftenwert

Hinweise

Beispiel

Plattformen

Versionsinformationen

.NET Framework

Siehe auch

Referenz

Zusätzliche Ressourcen