ControlValuePropertyAttribute.DefaultValue Property

 

Gets the default value for the default property of a control.

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

Public ReadOnly Property DefaultValue As Object

Property Value

Type: System.Object

The default value for the default property of a control.

When the property specified by the Name property is not set, use the DefaultValue property to determine the default value for the property.

The following code example demonstrates how to set the DefaultValue property by applying a ControlValuePropertyAttribute attribute to a custom control.


Imports System.ComponentModel
Imports System.Web.UI

Namespace Samples.AspNet.VB.Controls

    ' Set ControlValueProperty attribute to specify the default
    ' property of this control that a ControlParameter object 
    ' binds to at run time.
    <DefaultProperty("Text"), ControlValueProperty("Text", "DefaultText")> Public Class SimpleCustomControl
        Inherits System.Web.UI.WebControls.WebControl

        Dim _text As String

        <Bindable(True), Category("Appearance"), DefaultValue("")> Property [Text]() As String
            Get
                Return _text
            End Get

            Set(ByVal Value As String)
                _text = Value
            End Set
        End Property

        Protected Overrides Sub Render(ByVal output As System.Web.UI.HtmlTextWriter)
            output.Write([Text])
        End Sub

    End Class

End Namespace

.NET Framework
Available since 2.0
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