Casting DynamicClass from OpenAccessLinqDataSource

3 posts, 1 answers
  1. Chris
    Chris avatar
    13 posts
    Member since:
    Oct 2010

    Posted 15 Aug 2012 Link to this post

    Hello, using RadComboBox I want to add some attributes from the OpenAccessLinqDataSource that populates it on the DataBound event. The DataItem looks good but I can't figure out what to cast the DynamicClass to! Doh.

    ASPX DataSource
    <telerik:OpenAccessLinqDataSource ID="OAL_Stock_Topic" runat="server"
        ContextTypeName="Flow.Financials_ST2" EntityTypeName=""
        ResourceSetName="Stock_topics" Select="new (ID, Market, IsIndex, IsHolidayClosed)"
        Where="Enabled == @Enabled">
            <asp:Parameter DefaultValue="1" Name="Enabled" Type="Int16" />

    c# for DataBound Event
    protected void MarketItemDataBound(object o, RadComboBoxItemEventArgs e)
        // Does this work? No :(
        Stock_topic st = e.Item.DataItem as Stock_topic;
        // Silly guesses
        var st2 = e.Item.DataItem as Flow.Financials_ST2;
        var st3 = e.Item.DataItem as OpenAccessLinqDataSource;
        // the goal
        e.Item.Attributes["IsIndex"] = "Index Here";
        e.Item.Attributes["IsHolidayClosed"] = "Closed Status Here";

    See attached file re: DataItem has data
  2. Answer
    Damyan Bogoev
    Damyan Bogoev avatar
    581 posts

    Posted 16 Aug 2012 Link to this post

    Hi Chris,

    I have prepared a sample application which demonstrates two different approaches in order to achieve the desired goal.

    Approach 1 is using a reflection to find the property and set a new value to it.

    Approach 2 is using a view which represents the entity projection.

    Hope that helps. If any other questions arise, do not hesitate to contact us back.

    Damyan Bogoev
    the Telerik team
    Follow @OpenAccessORM Twitter channel to be the first one to get the latest updates on new releases, tips and tricks and sneak peeks at our product labs!
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  4. Chris
    Chris avatar
    13 posts
    Member since:
    Oct 2010

    Posted 16 Aug 2012 Link to this post

    Thank you so much. I went with reflection and it worked great! The sample project was very helpful.
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