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ASPxClientReportDesigner.ReportOpening Event

Occurs when a report is about to be opened in the Web Report Designer.

Namespace: DevExpress.XtraReports.Web.Scripts

Assembly: DevExpress.XtraReports.v18.2.Web.Scripts.dll


public event ASPxClientReportDesignerReportOpeningEventHandler ReportOpening
Public Event ReportOpening As ASPxClientReportDesignerReportOpeningEventHandler

Event Data

The ReportOpening event handler receives an argument of the ASPxClientReportDesignerDialogCancelEventArgs type. The following properties provide information specific to this event.

Property Description
Cancel Specifies whether or not the operation performed with a report should be canceled.
Report Specifies the report currently being processed.
Url Specifies the URL of the report currently being processed.


Handle the ReportOpening event to perform required actions before a report is opened in the Web Report Designer.

This event fires in the following cases:

  • when you run the Report Designer with a specific report assigned;
  • when you open a report using the Open menu command and Open Report dialog;
  • when you open a report using the client-side ASPxClientReportDesigner.OpenReport method.

To prevent the report from being opened, set the ASPxClientReportDesignerDialogCancelEventArgs.Cancel property of an event argument to true.

The following example demonstrates how to use this event to prohibit opening reports with URLs containing a specific substring.

<script type="text/javascript" id="script">
    function reportOpening(s, e) {
        if (e.Url.toLowerCase().includes("table"))
            e.Cancel = true;

<dx:ASPxReportDesigner ID="ASPxReportDesigner1" runat="server" ClientInstanceName="reportDesigner">  
    <ClientSideEvents ReportOpening="reportOpening" />   

To customize the report after it has been opened, handle the ASPxClientReportDesigner.ReportOpened event.

See Also