[CLOSED] Inheriting from Ext Component HTML property

[jchau]

I created a custom control that inherits from Ext.Net.Component. The control simply overrides the Html property to allow for HtmlEncoding for XSS prevention. I notice that with a normal Ext.Net.Component, when you update Html property during a direct event, it sends back script to update the UI. With my custom control, it doesn't. What governs that? Do I need to specify the same property attributes as in the base class?

my Custom control:

Public Class SafeComponent
        Inherits Ext.Net.Component


        Public Property DisableEncoding As Boolean


        Public Overrides Property Html As String
            Get
                Return MyBase.Html
            End Get
            Set(value As String)
                MyBase.Html = If(Me.DisableEncoding, value, System.Web.HttpUtility.HtmlEncode(value))
            End Set
        End Property
    End Class

Base class Html property

[Meta]
    [Description("An HTML fragment, or a DomHelper specification to use as the layout element content (defaults to '')")]
    [DirectEventUpdate(MethodName = "Update")]
    [ConfigOption("html")]
    [Category("3. AbstractComponent")]
    [DefaultValue("")]
    [NotifyParentProperty(true)]
    public virtual string Html
    {
      get
      {
        return this.State.Get<string>("Html", "");
      }
      set
      {
        this.State.Set("Html", (object) value);
      }
    }

[Daniil]

Hi @jchau,

When a property is updated during a DirectEvent or a DirectEvent, Ext.NET is looking for a DirectEventUpdate attribute.

[DirectEventUpdate(MethodName = "Update")]

If defined, it calls a method specified in the attribute. The method is supposed to generate some JavaScript code to update a property on client side.