Radzen Blazor DataGrid Virtualization Not working on first scroll

Radzen.Blazor Components
1

Hey guys,
Thanks for this amazing software!

Unfortunately, I am experiencing some trouble using the Blazor DataGrid virtualization. The first scroll is not triggering the LoadData event. My (row height * page size) > grid height.

I've included a video here:
Video of issue

<RadzenDataGrid @ref="grid" Data="@queryFiles" Count="@count" LoadData="@LoadData" TItem="SortedFileVM" AllowVirtualization="true" Style="height:400px;"
                AllowFiltering="true" FilterCaseSensitivity="FilterCaseSensitivity.CaseInsensitive" LogicalFilterOperator="LogicalFilterOperator.Or"
                AllowSorting="true" CellRender="@CellRender" SelectionMode="DataGridSelectionMode.Single" CellContextMenu="@OnCellContextMenu" AllowColumnResize="true">
    <Columns>
        <RadzenDataGridColumn TItem="SortedFileVM" Property="GalleryName" Title="Gallery name" />
        <RadzenDataGridColumn TItem="SortedFileVM" Property="CameraName" Title="Camera" Width="140px" />

        <RadzenDataGridColumn TItem="SortedFileVM" Title="Photo" Frozen="false" Sortable="false" Filterable="false" Width="120px">
            <Template Context="detail">
                <RadzenImage Path="@detail.Thumb" />
                <div class="fileName">@Path.GetFileName(detail.FilePath)</div>
            </Template>
        </RadzenDataGridColumn>


        <RadzenDataGridColumn TItem="SortedFileVM" Property="StartTime" Title="Log time" Width="140px">
            <Template Context="detail">
                @String.Format("{0:ddd, MMM dd, yyyy}", detail.StartTime)
                <br />
                @String.Format("{0}", detail.StartTime.ToLongTimeString())
            </Template>
        </RadzenDataGridColumn>

        <RadzenDataGridColumn TItem="SortedFileVM" Property="FileCreatedDate" Title="File created" Filterable="false" Width="140px">
            <Template Context="detail">
                @String.Format("{0:ddd, MMM dd, yyyy}", detail.FileCreatedDate)
                <br />
                @String.Format("{0}", detail.FileCreatedDate.ToLongTimeString())
                <br />
                @*@{ TimeSpan duration = detail.FileCreatedDate - detail.StartTime;}
                    @String.Format("{0} minutes after SortMagic log", duration.TotalMinutes)*@
            </Template>
        </RadzenDataGridColumn>


    </Columns>
</RadzenDataGrid>

void CellRender(DataGridCellRenderEventArgs<SortedFileVM> args)
    {
        args.Attributes.Add("style", "overflow: visible; whitespace: auto; height:166px;");

    }
2

Maybe it's because of the height of the cells in your case, have you tried to remove this code temporary?

3

Thanks. Yes, originally I did not have the cell height added. I added the height to make it explicit for the dom because of the problem.