（1）错误页面路径：
l ms-help://MS.MSDNQTR.v80.en/MS.MSDN.v80/MS.NETDEVFX.v20.en/cpref16/html/P_System_Web_UI_WebControls_Login_UserNameRequiredErrorMessage.htm
（2）页面内容：
Note: This property is new in the .NET Framework version 2.0.
Gets or sets the error message to display in a ValidationSummary control when the user name field is left blank.
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)
Syntax
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Visual Basic (Declaration) |
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<LocalizableAttribute(True)> _
Public Overridable Property UserNameRequiredErrorMessage As String |
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Visual Basic (Usage) |
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Dim instance As Login
Dim value As String
value = instance.UserNameRequiredErrorMessage
instance.UserNameRequiredErrorMessage = value |
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C# |
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[LocalizableAttribute(true)]
public virtual string UserNameRequiredErrorMessage { get; set; } |
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C++ |
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[LocalizableAttribute(true)]
public:
virtual property String^ UserNameRequiredErrorMessage {
String^ get ();
void set (String^ value);
} |
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J# |
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/** @property */
public String get_UserNameRequiredErrorMessage ()
/** @property */
public void set_UserNameRequiredErrorMessage (String value) |
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JScript |
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public function get UserNameRequiredErrorMessage () : String
public function set UserNameRequiredErrorMessage (value : String) |
Property Value
The error message to display in a ValidationSummary control when the user name field is left blank. The default is "User Name." （错误在此）
（3）简要说明：
在属性说明中，默认值是不正确的。根据VS 2005中的设置，默认值为：User Name is required.