So I may be just doing something completely wrong (or overlooking a flag somewhere).
I have a fairly basic RadDataGrid connected up to a OData source with filtering enabled (for the purposes of this question, I've simplified it to the ApplicationUsers table - don't worry its not actually using this table so no security risk).
The RadDataGrid is pretty simplistic -
<RadzenDataGrid Data="@userList" Count="@count" @ref="userGrid" LoadData="@LoadData" TItem="ApplicationUserListViewModel"
AllowFiltering="true" AllowSorting="true">
<Columns>
<RadzenDataGridColumn TItem="ApplicationUserListViewModel" Property="Id" Title="Id" Width="350px" />
<RadzenDataGridColumn TItem="ApplicationUserListViewModel" Property="NormalizedUserName" Title="Username"></RadzenDataGridColumn>
<RadzenDataGridColumn TItem="ApplicationUserListViewModel">
<Template Context="card">
<RadzenButton ButtonStyle="ButtonStyle.Danger" Icon="close" Size="ButtonSize.Small" Click="@(args => DeleteRow(card))" @onclick:stopPropagation="true">
</RadzenButton>
</Template>
<EditTemplate Context="card">
<RadzenButton ButtonStyle="ButtonStyle.Danger" Icon="close" Size="ButtonSize.Small" Click="@(args => DeleteRow(card))">
</RadzenButton>
</EditTemplate>
</RadzenDataGridColumn>
</Columns>
</RadzenDataGrid>
When however I type anything in the query form I get a $filter as follows -
$filter=(NormalizedUserName+%3d%3d+null+%3f+%27%27+%3a+NormalizedUserName).Contains(%27mitch%27)
The problem with this is that when .net interprits the $filter it generates the following error -
"The query specified in the URI is not valid. ')' or operator expected at position 20 in '(NormalizedUserName == null ? '' : NormalizedUserName).Contains('mitch')'."
Is there a flag or switch to enable OData compatible filters that I am maybe missing?