HiddenFieldDesigner.GetDesignTimeHtml Method ()

 

Gets the markup that is used to render the associated control at design time.

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

Public Overrides Function GetDesignTimeHtml As String

Return Value

Type: System.String

A string containing the markup used to render the HiddenField at design time.

The GetDesignTimeHtml method generates the markup for a placeholder that includes the control class name and the ID property.

The following code example shows how to override the GetDesignTimeHtml method in a class that is inherited from the HiddenFieldDesigner class to change the appearance of the HiddenField control at design time. The GetDesignTimeHtml override generates a placeholder that includes the Value property in the placeholder, along with the control class name and the ID property.

' Generate the design-time markup.
Public Overrides Function GetDesignTimeHtml() As String

    ' Get a reference to the control or a copy of the control.
    Dim myHF As MyHiddenField = CType(ViewControl, MyHiddenField)

    Dim markup As String = _
        CreatePlaceHolderDesignTimeHtml( _
            "Value: """ & myHF.Value.ToString() & """" )

    Return markup

End Function ' GetDesignTimeHtml

.NET Framework
Available since 2.0
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