DxReportViewer.OpenReportAsync(IReport) Method
Asynchronously opens the specified report and builds a document for preview.
Namespace: DevExpress.Blazor.Reporting
Assembly: DevExpress.Blazor.Reporting.v24.1.Viewer.dll
NuGet Package: DevExpress.Blazor.Reporting.Viewer
Declaration
Parameters
Name | Type | Description |
---|---|---|
report | IReport | A report to open. You can specify an XtraReport instance or CachedReportSource instance for large documents. |
Returns
Type | Description |
---|---|
Task | An asynchronous operation that loads a report. |
Remarks
The following code uses a custom helper (MyReportProvider
) for report name resolution (to instantiate a report by name). The report instance is passed to the OpenReportAsync method. If a name indicates a large report, the CachedReportSource instance is created and passed to the OpenReportAsync method instead.
@using DevExpress.XtraPrinting.Caching;
@using DevExpress.XtraReports.UI;
<DxReportViewer @ref="reportViewer"></DxReportViewer>
@code {
DxReportViewer reportViewer;
string ReportName;
protected override async Task OnAfterRenderAsync(bool firstRender)
{
if (firstRender) {
XtraReport report = MyReportProvider.GetReport(ReportName);
if (Viewer != null) {
if(ReportName == ReportNames.LargeDatasetName)
await Viewer.OpenReportAsync(
new CachedReportSource(report, new MemoryDocumentStorage()));
else
await Viewer.OpenReportAsync(report);
}
}
}
}
See Also