Windows XP:C:\Documents and Settings\\Local Settings\Apps

Windows Vista/Windows 7:C:\Users\\AppData\Local\Apps

RIA Services access to operation was denied

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; HPNTDF; InfoPath.3; .NET4.0C; .NET4.0E; MS-RTC LM
Timestamp: Fri, 18 Feb 2011 18:20:46 UTC

Message: Unhandled Error in Silverlight Application Load operation failed for query ‘GetUserDetails’. Access to operation ‘GetUserDetails’ was denied. at System.ServiceModel.DomainServices.Server.DomainService.ValidateMethodPermissions(DomainOperationEntry domainOperationEntry, Object entity)
at System.ServiceModel.DomainServices.Server.DomainService.ValidateMethodCall(DomainOperationEntry domainOperationEntry, Object[] parameters, ICollection`1 validationResults)
at System.ServiceModel.DomainServices.Server.DomainService.Query(QueryDescription queryDescription, IEnumerable`1& validationErrors, Int32& totalCount)
at System.ServiceModel.DomainServices.Hosting.QueryProcessor.Process[TEntity](DomainService domainService, DomainOperationEntry queryOperation, Object[] parameters, ServiceQuery serviceQuery, IEnumerable`1& validationErrors, Int32& totalCount)
at System.ServiceModel.DomainServices.Hosting.QueryOperationBehavior`1.QueryOperationInvoker.InvokeCore(Object instance, Object[] inputs, Object[]& outputs)
Line: 1
Char: 1
Code: 0
URI: http://yourapplicationwebsite/

The reason behind this is that the service you are calling requires privileges in order for it to be executed. This is specifically true when RequiresAuthenticationAttribute attribute or the RequiresRoleAttribute is applied to your service. To solve this error make sure that the application calling the service has the required access/permission to call the service method or you can remove both attributes on the service if the are not really needed(which might be risky).

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<UserControl x:Class="KeithRull.SLBulletList.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"    d:DesignHeight="300" d:DesignWidth="400">
    <Grid x:Name="LayoutRoot" Background="White" Loaded="LayoutRoot_Loaded">
        <ItemsControl x:Name="contestantsItemsControl">
            <ItemsControl.ItemTemplate>
                <DataTemplate>                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="30"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <TextBlock
                                        Grid.Column="0"
                                        Margin="5 5 0 0"
                                        HorizontalAlignment="Left"
                                        Text="•"/>
                        <TextBlock
                                        Grid.Column="1"
                                        Margin="5"
                                        VerticalAlignment="Top"
                                        IsHitTestVisible="False"
                                        TextWrapping="Wrap"
                                        Text="{Binding}"/>
                    </Grid>                </DataTemplate>
            </ItemsControl.ItemTemplate>        </ItemsControl>
    </Grid>
</UserControl>

As allways you can download a sample project here: KeithRull.SLBulletList

Fun! Now time to get back to my code zen.

Cheers!

After 4 hours of tweaking and fiddling I finally got the whole site migrated from dasBlog to WordPress. I love dasBlog and have been using it since 2005 but the lack of updates and progress made me decide to move to a new platform… There’s still some things that are left to be done like tweaking the home page of keithrull.com to something more informative than the blank space that I have right now but I’ll get to that in the next few days after customizing the theme in this blog.

I’m going to miss dasBlog but this ‘new shiny thing’ will sure make me not miss it for long. Catch you guys later!