Unplanned
Last Updated: 23 Aug 2021 09:03 by ADMIN
Bob
Created on: 23 Aug 2021 09:02
Category: Grid
Type: Bug Report
1
SelectedItemsChanged event with async handler is not firing when you unselect checkbox row in Grid

I have a Grid using checkbox selection and when I un-check a row, the SelectedItemsChanged event is not firing. I'm using an async handler.

The problem appears to happen when a row is selected and then un-selected. The event is firing when it is selected but is not firing when it is un-selected.

<TelerikGrid Data="strategicLevelItems" SelectedItems="selectedStrategic" Width="100%" Height="500px"
                                 ScrollMode="GridScrollMode.Scrollable" SelectionMode="GridSelectionMode.Multiple"
                                 SelectedItemsChanged="@((IEnumerable<GetNavigationNodesModel> strategicItems) => OnStrategicSelectAsync(strategicItems))"
                                 FilterMode="GridFilterMode.FilterRow">
                        <GridColumns>
                            <GridCheckboxColumn SelectAll="true" Width="40px" OnCellRender="@GridHelpers.CenterAlign" />
                            <GridColumn Field="@(nameof(GetNavigationNodesModel.Name))" />
                        </GridColumns>
                    </TelerikGrid>

    private async Task OnStrategicSelectAsync(IEnumerable<GetNavigationNodesModel> selectedItems)
    {
        selectedStrategic = selectedItems;

        var state = tacticalGrid.GetState();

        var compositeFilter = new CompositeFilterDescriptor() { LogicalOperator = FilterCompositionLogicalOperator.Or };
        foreach (var item in selectedItems)
        {
            compositeFilter.FilterDescriptors.Add(new FilterDescriptor()
            {
                Member = "ParentId",
                Operator = FilterOperator.IsEqualTo,
                Value = item.Id
            });
        }

        state.FilterDescriptors.Clear();
        state.FilterDescriptors.Add(compositeFilter);

        await tacticalGrid.SetState(state);
    }

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