MudDataGrid filterable row and column menu not working

I'm using mudDataGrid to display my data (IEnumerable), It works fine.I've also enable filterable to filter columns, But both filter row and column menu not working!The filter row is disabled (read-only) and in the column menu, The operator list is empty and does not have value field! (see my attached image).

Here is my code :

<MudDataGrid T="DataRow" Items="this._lstRows" Filterable="true" FilterMode="DataGridFilterMode.ColumnFilterRow" QuickFilter="@FilterFunc"><ToolBarContent><MudText Typo="Typo.h6" Class="persianFontSans">@Report.ReportPersianName</MudText><MudSpacer /><MudTextField @bind-Value="_searchString" Placeholder="Search" Adornment="Adornment.Start" Immediate="true"                      AdornmentIcon="@Icons.Material.Filled.Search" IconSize="MudBlazor.Size.Medium" Class="mt-0 persianFontSans"></MudTextField></ToolBarContent><Columns>        @foreach (var dc in this.Data.Columns.OfType<DataColumn>())        {<PropertyColumn Property="x => x[dc.ColumnName]" Title="@dc.ColumnName" HeaderClass="persianFontSans" CellClass="persianFontSans"                            Format="@GetFormatString(dc)" />        }</Columns><PagerContent><MudDataGridPager T="DataRow" /></PagerContent></MudDataGrid>

Where is the problem and how to solve it?Thanks in advance