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Migrate Report Viewer application

In our Report Platform release version v4.1.0.x, new reporting assemblies are introduced for both client and server-side to resolve the compatibility problem between Essential Studio and Report Platform Report Viewer versions. It has changes in both Web API service and client-side scripts.

This section provides step-by-step instructions for migrating v3.2.0.42 and below version of Report Viewer ASP.NET MVC application to the new Report Platform version:

The following migration changes must be implemented in your existing Report Viewer application. It was created using our Report Platform v3.2.0.42 and below versions.

Client-side migration

To refer the latest scripts and CSS references of Report Viewer do the following steps,

  1. Remove the following scripts and CSS references from the Report Viewer page.

    • ej.web.all.min.css
    • ej.web.all.min.js
  2. Replace the following scripts and CSS references in the <head> tag of the Report Viewer page.

    <link href="Content/reports/material/ej.reports.all.min.css" rel="stylesheet" />
    <script src="http://code.jquery.com/jquery-1.10.2.min.js" type="text/javascript"></script>
    <script src="Scripts/reports/common/ej.reporting.common.min.js"></script>
    <script src="Scripts/reports/common/ej.reporting.widgets.min.js"></script>
    
    <!--Used to render the chart item. Add this script only if your report contains the chart report item.-->
    <script src="Scripts/reports/data-visualization/ej.chart.min.js"></script>
    
    <!-- Report Viewer component script-->
    <script src="Scripts/reports/ej.report-viewer.min.js"></script>

Adding data visualization scripts

To render the report with data visualization components such as chart, gauge, and map items, add scripts of the visualization element. The following table shows the script reference that needs to be added in Report Viewer page for data visualization elements.

Visualization item Script file
Chart ej.chart.min.js
Gauge ej.lineargauge.min.js, ej.lineargauge.min.js
Map ej.map.min.js

To render the chart report item, add chart control script ej.chart.min.js before the ej.report-viewer.min.js reference in the \Views\Shared\_Layout.cshtml page as demonstrated in the following code sample.

<link href="Content/reports/material/ej.reports.all.min.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-1.10.2.min.js" type="text/javascript"></script>
<script src="Scripts/reports/common/ej.reporting.common.min.js"></script>
<script src="Scripts/reports/common/ej.reporting.widgets.min.js"></script>

<!--Used to render the chart item. Add this script only if your report contains the chart report item.-->
<script src="Scripts/reports/data-visualization/ej.chart.min.js"></script>

<!-- Report Viewer component script-->
<script src="Scripts/reports/ej.report-viewer.min.js"></script>

The following code can be used to render the chart, gauge, and map report items in Report Viewer.

<link href="Content/reports/material/ej.reports.all.min.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-1.10.2.min.js" type="text/javascript"></script>
<script src="Scripts/reports/common/ej.reporting.common.min.js"></script>
<script src="Scripts/reports/common/ej.reporting.widgets.min.js"></script>

<!--Used to render the chart item. Add this script only if your report contains the chart report item.-->
<script src="Scripts/reports/data-visualization/ej.chart.min.js"></script>

<!--Used to render the gauge item. Add this script only if your report contains the gauge report item. -->
<script src="Scripts/reports/data-visualization/ej.circulargauge.min.js"></script>
<script src="Scripts/reports/data-visualization/ej.lineargauge.min.js"></script>

<!--Used to render the map item. Add this script only if your report contains the map report item.-->
<script src="Scripts/reports/data-visualization/ej.map.min.js"></script>

<!-- Report Viewer component script-->
<script src="Scripts/reports/ej.report-viewer.min.js"></script>

Server-side migration

  1. In the Solution Explorer, right-click the References and remove the Syncfusion.EJ.ReportViewer assembly reference.
  2. Add the assembly from the Syncfusion NuGet package Syncfusion.Reporting.Web. To add from NuGet, right-click the project or solution in the Solution Explorer tab, and choose Manage NuGet Packages. Search for Syncfusion.Reporting.Web NuGet package, and then install in your application.

Refer to the NuGet Packages section to learn more details about installing and configuring Report Viewer NuGet packages.

Web API Controller

  1. The IReportController interface is moved to Syncfusion.Reporting.Web.ReportViewer. Open the Report Viewer Web API Controller file and remove the following using statement.

    using Syncfusion.EJ.ReportViewer;
  2. Add the following using statement.

    using Syncfusion.Reporting.Web.ReportViewer;

Your application is successfully upgraded to the latest version of Report Viewer, and you can run the application with new assemblies.

Report export configuration

Now, the Syncfusion.Reporting.Web can export the reports with data visualization components only using web components. It is mandatory to configure the web scripts in Report Viewer Web API controller for exporting data visualization components such as chart, gauge, and map that are used in report definition. To configure the scripts in Web API, refer to the following steps:

  1. Open the Report Viewer Web API controller.

  2. Configure the following scripts and styles in OnInitReportOptions on Web API controller:

    • jquery-1.10.2.min.js
    • ej.reporting.common.min.js
    • ej.reporting.widgets.min.js
    • ej.chart.min.js - Exports the chart item. Add this script only if your report contains the chart report item.
    • ej.lineargauge.min.js and ej.circulargauge.min.js - Exports the gauge item. Add this script only if your report contains the gauge report item.
    • ej.map.min.js - Exports the map item. Add this script only if your report contains the map report item.
    • ej.report-viewer.min.js
  3. Replace the following codes in Report Viewer Web API controller.

    public void OnInitReportOptions(ReportViewerOptions reportOption)
    {
        var resourcesPath = System.Web.Hosting.HostingEnvironment.MapPath("~/Scripts");
    
        reportOption.ReportModel.ExportResources.Scripts = new List<string>
        {
            resourcesPath + @"\reports\common\ej.reporting.common.min.js",
            resourcesPath + @"\reports\common\ej.reporting.widgets.min.js",
            //Chart component script
            resourcesPath + @"\reports\data-visualization\ej.chart.min.js",
            //Gauge component scripts
            resourcesPath + @"\reports\data-visualization\ej.lineargauge.min.js",
            resourcesPath + @"\reports\data-visualization\ej.circulargauge.min.js",
            //Map component script
            resourcesPath + @"\reports\data-visualization\ej.map.min.js",
            //Report Viewer Script
            resourcesPath + @"\reports\data-visualization\ej.chart.min.js",
            resourcesPath + @"\reports\ej.report-viewer.min.js"
        };
    
        reportOption.ReportModel.ExportResources.DependentScripts = new List<string>
        {
            resourcesPath + @"\jquery-1.7.1.min.js"
        };
    }

    The data visulization components will not export without the above script configurations.