Row selection not working in Data Grid

Hi, This is first time I'm using Radzen Data Grid. I am simply trying to capture the selected row, when user click on a row. I have the following grid:

 <RadzenDataGrid Data="@clients" 
                           Count="@count"
                           LoadData="@LoadData"
                           AllowFiltering="true" 
                           AllowColumnResize="true" 
                           AllowSorting="true" 
                           PageSize="5" 
                           AllowPaging="true" 
                           PagerHorizontalAlign="HorizontalAlign.Left" 
                           ShowPagingSummary="true"
                           IsLoading="@isLoading"
                           SelectionMode="DataGridSelectionMode.Single" 
                           @bind-Value=@selectedClients
                           RowClick="@OnRowClick"
                           TItem="Client">
                <Columns>
                    <RadzenDataGridColumn TItem="Client" Property="Id" Title="Client ID" />
                    <RadzenDataGridColumn TItem="Client" Property="CompanyName" Title="Client Name" />
                    <RadzenDataGridColumn TItem="Client" Property="BillingAddress" Title="Address" />
                    <RadzenDataGridColumn TItem="Client" Property="Phone" Title="Phone" />
                    <RadzenDataGridColumn TItem="Client" Property="Email" Title="Email" />
                </Columns>
            </RadzenDataGrid>

This is my code:

@code {
    IEnumerable<Client>? clients;
    bool isLoading;
    int count;
    IList<Client>? selectedClients = new List<Client>();

    void OnRowClick(DataGridRowMouseEventArgs<Client> args)
    {
        selectedClients = new List<Client> { args.Data };
        NotificationService.Notify(new NotificationMessage
        {
            Severity = NotificationSeverity.Info,
            Summary = "Client Selected",
            Detail = $"Selected {args.Data.CompanyName}",
            Duration = 4000
        });
        StateHasChanged();
    }

    protected override async Task OnInitializedAsync()
    {
        await LoadData(new LoadDataArgs { Skip = 0, Top = 5 });
    }

    async Task LoadData(LoadDataArgs args)
    {
        try
        {
            isLoading = true;
            StateHasChanged();

            var pageSize = args.Top ?? 5;
            var skip = args.Skip ?? 0;
            var pageNumber = (skip / pageSize) + 1;

            var response = await Http.GetAsync($"api/clients?pageNumber={pageNumber}&pageSize={pageSize}");
            
            if (response.IsSuccessStatusCode)
            {
                var result = await response.Content.ReadFromJsonAsync<PaginatedResult<Client>>();
                if (result != null)
                {
                    clients = result.Items.ToList();
                    count = result.Pagination.TotalCount;

                    // Only set initial selection if no row is currently selected
                    if (selectedClients?.Any() != true && clients.Any())
                    {
                        selectedClients = new List<Client> { clients.First() };
                    }
                }
            }
            else
            {
                var error = await response.Content.ReadAsStringAsync();
                NotificationService.Notify(NotificationSeverity.Error, "Error", $"Failed to load clients: {error}");
            }
        }
        catch (Exception ex)
        {
            NotificationService.Notify(NotificationSeverity.Error, "Error", $"Failed to load clients: {ex.Message}");
        }
        finally
        {
            isLoading = false;
            StateHasChanged();
        }
    }

When clicking on the rows, nothing happens, the row does not even select.

Thank you in advance for the help!

To comment why it's not working we will need runnable code - you can compare also your implementation with our demos or event attach Radzen.Blasor.csproj to your project to debug the issue.

Thank you will try that, in the meanwhile I also noticed none of the other functions/buttons (sorting, filtering, pagination) are clickable, nothing happens when clicked. is there anything that needs to be enabled besides setting the attributes, such as AllowSort, AllowPaging... etc. to true?

Check this thread:

Thank you @enchev that was it. @rendermode InteractiveServer.

thank you for the help!