3rdpartylibs/fastreports.wpf/FastReport.Web.Blazor/Components/ReportRender.razor

<div style="width:@pageWidth;height:@pageHeight;overflow:hidden;display:inline-block">
    <ExportComponent WebReport="WebReport"/>
</div>

@code {
    [Parameter]
    public WebReport WebReport { get; set; }

    int pageWidth;
    int pageHeight;


    protected override void OnParametersSet()
    {
        base.OnParametersSet();

        pageWidth = (int)Math.Ceiling(GetReportPageWidthInPixels() * WebReport.Zoom);
        pageHeight = (int)Math.Ceiling(GetReportPageHeightInPixels() * WebReport.Zoom);
    }

    float GetReportPageWidthInPixels()
    {
        return WebReport.GetReportPageWidthInPixels();
    }


    float GetReportPageHeightInPixels()
    {
        return WebReport.GetReportPageHeightInPixels();
    }

}