DxReportDesignerCallbacks.ReportOpening Property

Specifies the JavaScript function that handles the Web Report Designer’s ReportOpening client-side event.

Namespace: DevExpress.Blazor.Reporting

Assembly: DevExpress.Blazor.Reporting.v25.1.JSBasedControls.Common.dll

NuGet Package: DevExpress.Blazor.Reporting.JSBasedControls.Common

Declaration

C#

[Parameter]
public string ReportOpening { get; set; }

VB.NET

<Parameter>
Public Property ReportOpening As String

Property Value

Type	Description
String	The name of a JavaScript function used to handle the ReportOpening event.

Remarks

Handle the ReportOpening event to prevent certain reports from being opened.

The handler function receives two parameters: the first parameter is the client-side Report Designer (the event sender) and the second parameter is an object with the following properties and methods:

• Url
  The URL of the report currently being opened.

• Report
  The report currently being opened.

• Cancel
  Specifies whether to cancel opening the report.

The following code does not allow the Report Designer to load reports with a URL that contains the “table” substring:

reporting_DesignerCustomization.js

window.ReportingDesignerCustomization = {
    onReportOpening: function (s, e) {
        if (e.Url.toLowerCase().includes("table"))
            e.Cancel = true;
    }
}

_Host.cshtml

<script src="~/js/reporting_DesignerCustomization.js"></script>

Designer.razor

<DxReportDesigner ReportName="SampleReport" Height="1000px" Width="100%">
    <DxReportDesignerCallbacks ReportOpening="ReportingDesignerCustomization.onReportOpening" />
</DxReportDesigner>