UrlPropertyAttribute Constructor (String)

 

Initializes a new instance of the UrlPropertyAttribute class, setting the Filter property to the specified string.

Namespace:   System.Web.UI
Assembly:  System.Web (in System.Web.dll)

Public Sub New (
	filter As String
)

Parameters

filter
Type: System.String

A file filter associated with the URL-specific property.

An instance of a UrlPropertyAttribute class created with this constructor is initialized with the Filter property set to filter.

The following code example demonstrates a class that implements a URL-specific property. In this code example, a UrlPropertyAttribute attribute is applied to the TargetUrl property of the CustomHyperLinkControl class. The attribute sets a specific file filter for ASP.NET files.

Public Class CustomHyperLinkControl
    Inherits WebControl

    Public Sub New()
    End Sub 'NewNew

    ' The TargetUrl property represents the URL that 
    ' the custom hyperlink control navigates to.        
    <UrlProperty("*.aspx")> _
    Public Property TargetUrl() As String
        Get
            Dim s As String = CStr(ViewState("TargetUrl"))
            If (s Is Nothing) Then
                Return String.Empty
            Else
                Return s
            End If
        End Get
        Set(ByVal value As String)
            ViewState("TargetUrl") = value
        End Set
    End Property

    ' The Text property represents the visible text that 
    ' the custom hyperlink control is displayed with.                
    Public Overridable Property [Text]() As String
        Get
            Dim s As String = CStr(ViewState("Text"))
            If (s Is Nothing) Then
                Return String.Empty
            Else
                Return s
            End If
        End Get
        Set(ByVal value As String)
            ViewState("Text") = value
        End Set
    End Property

    ' Implement method to render the control.

End Class 'CustomHyperLinkControl

.NET Framework
Available since 2.0
Return to top
Show: