custom filter menu

[Ali]

HI i want defin custom filter menu for my Grid Column and this is my Grid
(

<GridColumn Field="MoneyTransferCode" FieldType="@(typeof(int))" Title="نوع انتقال وجه" Width="200px" Groupable="true">
    <FilterMenuTemplate>
        @{
            <div class="filter-values-container">
                @foreach (var country in MoneyTransferCodeList.Select(x => x.PersianDisplayName))
                {
                    <div>
                        <TelerikCheckBox Value="@(GetFilterValues(context.FilterDescriptor).Contains(country))"
                                         ValueChanged="@((bool value) => ColumnValueChanged(value, country, nameof(TermOfTransactionDto.MoneyTransferCode), context.FilterDescriptor))"
                                         Id="@($"country_{country}")">
                        </TelerikCheckBox>
                        <label for="@($"country_{country}")">
                            @country
                        </label>
                    </div>
                }
            </div>
        }
    </FilterMenuTemplate>
    
    
    

    
    <GroupHeaderTemplate>
        نوع انتقال وجه: @Data.Where(x => x.MoneyTransferCode == int.Parse(context.Value.ToString())).Select(x => x.MoneyTransferCodeName).FirstOrDefault()
    </GroupHeaderTemplate>
    <Template>
        @{
            var item = context as TermOfTransactionDto;
            @item.MoneyTransferCodeName
        }
    </Template>
    <EditorTemplate>
        @{
            var item = context as TermOfTransactionDto;
            <TelerikDropDownList Data="@MoneyTransferCodeList"
                                 ValueField="Value"
                                 TextField="PersianDisplayName"
                                 Width="100%"
                                 @bind-Value="@item.MoneyTransferCode"/>
        }
    </EditorTemplate>
</GridColumn> 

)
and this is my function I need 
(

public void ColumnValueChanged(bool value, string itemValue, string columnName, CompositeFilterDescriptor filterDescriptor)
{
    var filter = filterDescriptor.FilterDescriptors.FirstOrDefault(f => (f as FilterDescriptor).Value?.ToString() == itemValue);

    int itemValueNumber = MoneyTransferCodeList.First(x => x.PersianDisplayName == itemValue).Value;
    
    filterDescriptor.LogicalOperator = FilterCompositionLogicalOperator.Or;

    if (value && filter == null)
    {
        // var filterDescriptor1 = new FilterDescriptor(columnName, FilterOperator.IsEqualTo, itemValue);
        // filterDescriptor.FilterDescriptors.Add(filterDescriptor1);
        filterDescriptor.FilterDescriptors.Add(new FilterDescriptor(columnName, FilterOperator.IsEqualTo, itemValueNumber));
        
        
    }
    else if (!value && filter != null)
    {
        filterDescriptor.FilterDescriptors.Remove(filter);
    }
}

)
and when i use this filter its truly work but i cant see the item that i select in front end , also I see a sample like this in telerik docs but its for string values and in this case i want use for int values pleas help me.