Parameters Panel

• Feb 09, 2026

The Parameters Panel allows users to specify parameter values. The panel displays parameters with the Visible property set to true.

Specify a parameter value in a parameter editor and click Submit. To revert to the default values, click Reset.

For parameters with look-up values, type the search criteria in the editor to filter available look-up values:

You can validate report parameter values. For more information, refer to the following topic: Validate Parameter Values in Native Blazor Report Viewer.

Limitations

The Report Viewer does not display predefined date ranges for date range report parameters.

Customizations

Use the TabPanelModel property to hide the Parameters Model:

@using DevExpress.Blazor.Reporting
@using DevExpress.Blazor.Reporting.Models
@using DevExpress.XtraReports.UI
@using DxBlazorApp.PredefinedReports

<DxReportViewer @ref="reportViewer" Report="Report" RootCssClasses="w-100 h-100" />

@code {
    DxReportViewer reportViewer;
    XtraReport Report = new TestReport();

    protected override void OnAfterRender(bool firstRender) {
        if (firstRender) {
            var parameterTab = reportViewer.TabPanelModel.Tabs
                .Where(Tab => Tab.ContentModel is ParametersModel)
                .FirstOrDefault();
            parameterTab.Visible = false;
        }
        base.OnAfterRender(firstRender);
    }
}

For information on how to replace a parameter editor with a custom editor, refer to the following topic: Customize Parameter Editor in the Report Viewer.