Security Exception in Medium Trust environment

[Paul Taylor]

When I use the following RadGrid in an application designed for a Medium Trust environment, I get a Security Exception (missing Reflection permission). The exception trace is below. The version of the controls that I am using is 2009.3.1103.0. Any ideas why and how I can get around this ?

    <telerik:RadGrid ID="grdContacts" runat="server" AllowFilteringByColumn="True" AllowPaging="True"
        AllowSorting="True" AutoGenerateColumns="False" GridLines="None">
        <MasterTableView>
            <Columns>
                <telerik:GridHyperLinkColumn Text="Edit" DataNavigateUrlFields="ID" UniqueName="Edit"
                    ItemStyle-CssClass="command-column" />
                <telerik:GridBoundColumn DataField="ID" HeaderText="ID" UniqueName="ID" />
                <telerik:GridBoundColumn DataField="Status" HeaderText="Name" UniqueName="Status" />
                <telerik:GridBoundColumn DataField="Title" HeaderText="Guid" UniqueName="Title" />
                <telerik:GridBoundColumn DataField="Forename" HeaderText="Type" UniqueName="Forename" />
                <telerik:GridBoundColumn DataField="Surname" HeaderText="Surname" UniqueName="Surname" />
                <telerik:GridBoundColumn DataField="Company" HeaderText="Company" UniqueName="Company" />
                <telerik:GridBoundColumn DataField="Town" HeaderText="Town" UniqueName="Town" />
                <telerik:GridBoundColumn DataField="Postcode" HeaderText="Postcode" UniqueName="Postcode" />
            </Columns>
        </MasterTableView>
    </telerik:RadGrid>

[SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
   System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Assembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission permThatFailed) +150
   System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Object assemblyOrString, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission permThatFailed) +100
   System.Security.CodeAccessSecurityEngine.CheckSetHelper(PermissionSet grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandle rmh, Object assemblyOrString, SecurityAction action, Boolean throwException) +283
   System.Security.PermissionSetTriple.CheckSetDemand(PermissionSet demandSet, PermissionSet& alteredDemandset, RuntimeMethodHandle rmh) +69
   System.Security.PermissionListSet.CheckSetDemand(PermissionSet pset, RuntimeMethodHandle rmh) +150
   System.Security.PermissionListSet.DemandFlagsOrGrantSet(Int32 flags, PermissionSet grantSet) +30
   System.Threading.CompressedStack.DemandFlagsOrGrantSet(Int32 flags, PermissionSet grantSet) +40
   System.Security.CodeAccessSecurityEngine.ReflectionTargetDemandHelper(Int32 permission, PermissionSet targetGrant, CompressedStack securityContext) +123
   System.Security.CodeAccessSecurityEngine.ReflectionTargetDemandHelper(Int32 permission, PermissionSet targetGrant) +54

[Iana Tsolova]

Hello Paul,

Check this article for more information on how to overcome the issue.

Greetings,
Iana
the Telerik team