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Login.LoginButtonImageUrl 屬性

  • 參考

定義

命名空間:
System.Web.UI.WebControls
組件:
System.Web.dll

取得或設定要用於登入按鈕之影像的 URL。

public:
 virtual property System::String ^ LoginButtonImageUrl { System::String ^ get(); void set(System::String ^ value); };
public virtual string LoginButtonImageUrl { get; set; }
member this.LoginButtonImageUrl : string with get, set
Public Overridable Property LoginButtonImageUrl As String

屬性值

String

用於登入按鈕之影像的 URL。 預設為 Empty。

範例

下列程式碼範例會將 LoginButtonImageUrl 屬性設定為影像的 URL。

<%@ Page Language="C#"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
void ChangeClick(object sender, EventArgs e)
{
    if (Login1.LoginButtonType == ButtonType.Image)
    {
        Login1.LoginButtonImageUrl = String.Empty;
        Login1.LoginButtonType = ButtonType.Button;
    }
    else
    {
        Login1.LoginButtonImageUrl = "images/login.png";
        Login1.LoginButtonType = ButtonType.Image;
    }
}
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
      <table>
        <tr>
          <td>
            <asp:Login id="Login1" 
                       runat="server" 
                       LoginButtonImageUrl="images/login.png" 
                       LoginButtonText="Submit the login form."
                       LoginButtonType="Image">
            </asp:Login>
          </td>
          <td>
            <asp:Button id="change" 
                        runat="server" 
                        Text="Change Login button." 
                        onClick="ChangeClick">
            </asp:Button>
          </td>
        </tr>
      </table>
    </form>
  </body>
</html>

<%@ Page Language="VB"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  Sub ChangeClick(ByVal sender As Object, ByVal e As EventArgs)
    
    If Login1.LoginButtonType = ButtonType.Image Then
      Login1.LoginButtonImageUrl = String.Empty
      Login1.LoginButtonType = ButtonType.Button
    Else
      Login1.LoginButtonImageUrl = "images/login.png"
      Login1.LoginButtonType = ButtonType.Image
    End If
    
  End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="Form1" runat="server">
      <table>
        <tr>
          <td>
            <asp:Login id="Login1" 
                       runat="server" 
                       LoginButtonImageUrl="images/login.png" 
                       LoginButtonText="Submit the login form."
                       LoginButtonType="Image">
            </asp:Login>
          </td>
          <td>
            <asp:Button id="change" 
                        runat="server" 
                        Text="Change Login button." 
                        onClick="ChangeClick">
            </asp:Button>
          </td>
        </tr>
      </table>
    </form>
  </body>
</html>

備註

屬性 LoginButtonImageUrl 包含當 屬性設定 Image 為 時，呈現為 Login 控制項登入按鈕之 LoginButtonType 影像的 URL。

屬性 LoginButtonText 會用來做為瀏覽器中未顯示影像之影像的替代文字。

適用於

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