Re: DxGridListEditor does not save AutoFilterRow settings

How to turn it on with XAF ?

Hello,

To accomplish this task in an XAF app, access an underlying grid control as described here: Access List View Grid Component Settings Using a Controller (.NET 5). After that, you will be able to use the required events.

Let me know if any further questions arise.

Thanks,
Andrey

Thank Andrey for reply

i prepared custom controller

C#
public class GridCustomizeController : ViewController<ListView>
{
    string LocalStorageKey = "dupa";
    IJSRuntime JSRuntime;


    public GridCustomizeController() : base()
    {

        // Target required Views (use the TargetXXX properties) and create their Actions.
        if (Application != null)
        {
            JSRuntime = ((BlazorApplication)Application).ServiceProvider.GetRequiredService<IJSRuntime>();
        }
    }


    protected override void OnActivated()
    {
        base.OnActivated();
        // Perform various tasks depending on the target View.
    }
    protected override void OnDeactivated()
    {
        // Unsubscribe from previously subscribed events and release other references and resources.
        base.OnDeactivated();
    }
    protected override void OnViewControlsCreated()
    {
        base.OnViewControlsCreated();

        if (View.Editor is DxGridListEditor gridListEditor)
        {
            IDxGridAdapter dataGridAdapter = gridListEditor.GetGridAdapter();
            dataGridAdapter.GridModel.ColumnResizeMode = DevExpress.Blazor.GridColumnResizeMode.ColumnsContainer;

            dataGridAdapter.GridModel.DetailRowDisplayMode = GridDetailRowDisplayMode.Auto;

            dataGridAdapter.GridModel.ShowFilterRow = true;


            LocalStorageKey = View.Id;

            dataGridAdapter.GridModel.LayoutAutoSaving = async (GridPersistentLayoutEventArgs e) => 
            {
                await SaveLayoutToLocalStorageAsync(e.Layout); 
            };
            dataGridAdapter.GridModel.LayoutAutoLoading = async (GridPersistentLayoutEventArgs e) =>
            {
                e.Layout = await LoadLayoutFromLocalStorageAsync();
            };
        }
    }
    async Task<GridPersistentLayout> LoadLayoutFromLocalStorageAsync()
    {
        try
        {
            var json =  await JSRuntime.InvokeAsync<string>("localStorage.getItem", LocalStorageKey);
            return JsonSerializer.Deserialize<GridPersistentLayout>(json);
        }
        catch
        {
            // Mute exceptions
            return null;
        }
    }

    async Task SaveLayoutToLocalStorageAsync(GridPersistentLayout layout)
    {
        try
        {
            var json = JsonSerializer.Serialize(layout);
              await JSRuntime.InvokeVoidAsync("localStorage.setItem", LocalStorageKey, json);
        }
        catch
        {
            // Mute exceptions
        }
    }
}

but when trying to store json in localstorage i get error:

System.ArgumentNullException
HResult=0x80004003
Message=Value cannot be null. Arg_ParamName_Name
Source=Microsoft.JSInterop
StackTrace:
at Microsoft.JSInterop.JSRuntimeExtensions.<InvokeVoidAsync>d__0.MoveNext()
at System.Runtime.CompilerServices.ValueTaskAwaiter.GetResult()
at BlazorGridTests.Module.Controllers.GridCustomizeController.<SaveLayoutToLocalStorageAsync>d__7.MoveNext() in C:\Users\jacek\source\repos\BlazorGridTests\BlazorGridTests.Blazor.Server\Controllers\GridCustomizeController.cs:line 90

This exception was originally thrown at this call stack:
[External Code]
BlazorGridTests.Module.Controllers.GridCustomizeController.SaveLayoutToLocalStorageAsync(DevExpress.Blazor.GridPersistentLayout) in GridCustomizeController.cs

Hello,

We apologize for the misunderstanding. Unfortunately, in XAF, you cannot use this control's API, since it goes against the internal mechanisms for synchronizing the settings of the control and the database. In short, we expect to support the capability to save filter settings out of the box in the near future. So, I recommend you wait for the next release. Applying the above solution to XAF will not be stable in any case.

Thanks,
Stanislav

is this available in newest 22.2.3 version. If yes then how to turn it on ?

Hello Jacek,

The Filter Row's filter is not saved in the IModelListView.Filter property in v22.2.3. We are going to add this capability in the future. In v22.2, you can use the following DxGrid methods for this task:

DxGrid.GetFilterCriteria() Method
DxGrid.SetFilterCriteria(CriteriaOperator) Method

I know that i can use these method, but it is still not clear for me how to store it to local storage in xaf?