ValidationHelper.RequireField Method (String, String)
Registers the specified field as one that requires user entry and registers the specified string as the error message to display if no value is supplied.
Namespace: System.Web.WebPages
Assembly: System.Web.WebPages (in System.Web.WebPages.dll)
Syntax
'Declaration
Public Sub RequireField ( _
field As String, _
errorMessage As String _
)
'Usage
Dim instance As ValidationHelper
Dim field As String
Dim errorMessage As String
instance.RequireField(field, errorMessage)
public void RequireField(
string field,
string errorMessage
)
public:
void RequireField(
String^ field,
String^ errorMessage
)
member RequireField :
field:string *
errorMessage:string -> unit
public function RequireField(
field : String,
errorMessage : String
)
Parameters
- field
Type: System.String
The name (value of the name attribute) of the user input element to validate.
- errorMessage
Type: System.String
The error message.