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Upgrading Telerik Reporting

Depending on the new features and changes in each new Telerik Reporting release, you may have to upgrade your project.

All Telerik Reporting and Telerik Report Server resources that interact must match in version. For example, Html5 Report Viewer with version 18.0.24.130, Angular Report Viewer 21.24.130, and React Report Viewer 21.24.130 must use a Reporting REST Service 18.0.24.130, or Telerik Report Server with version 10.0.24.130. Upon upgrading Telerik Reporting or Report Server ensure the browser hasn't cached the viewer's files with the older version.

The PDF documentation is updated less often than the online documentation and may contain outdated or imprecise information.

General Workflow

To upgrade Telerik Reporting:

  1. Check for any new features, fixes, breaking or dependency changes in the Telerik Reporting Release History.
  2. Install the desired Telerik Reporting version by using the Telerik Control Panel or through the MSI installer file.
  3. Upgrade all projects that use Telerik Reporting as described in this article.
  4. Check for any updates between your current and desired versions in the articles with the specific changes in each Telerik Reporting release. For example, if your project currently targets Q3 2013, to upgrade to Q1 2014, review the articles for Q3 2013 and Q1 2014.

For any persisting issues, use either of the following options:

Major and Minor Releases

Telerik Reporting supports the following types of releases:

  • Major versions— Can simultaneously coexist on the same machine. For example, major versions are the Q3 2013 and Q1 2014 releases.
  • Minor versions, or Service Packs (SP)— A major version can coexist on the same machine with only a single minor version from the same release. For example, when you upgrade the major Q1 2014 release to the later minor Q1 2014 SP1 release, the installer will first uninstall the Q1 2014 version and then install Q1 2014 SP1.

If the new Telerik Reporting version is a major release, it will be installed next to the earlier releases. If the new Telerik Reporting version is a minor release, it will replace the corresponding major release.

Visual Studio Toolbox loads only the updates from the latest Telerik Reporting version that is installed on your computer. However, you will be able to work with the item and project templates from all Telerik Reporting versions that are installed on your computer.

Upgrading Projects Automatically

To automatically upgrade your project to a later Telerik Reporting version, use the Telerik Upgrade Wizard.

The Telerik Upgrade Wizard does not support website projects because websites handle the assembly references in a different way. To upgrade your website project automatically, transform it into a web application. Alternatively, upgrade your website project manually.

The Telerik Upgrade Wizard does not support .NET Core projects. To upgrade your .NET project, manually upgrade the references to the Telerik Reporting assemblies or NuGet packages and the HTML5 Report Viewer scripts to the required version.

You can only manually update website, WPF, and Silverlight projects which use the WPF and Silverlight Report Viewers but do not have separately purchased Telerik UI for WPF and Telerik UI for Silverlight products.

Upgrading Projects Manually

You can manually upgrade class library and website projects, and desktop and web applications.

  1. In Solution Explorer, click the Show All Files button. Open References and locate the references to the previous Telerik Reporting assemblies.

    Service Pack assemblies are marked with yellow exclamation marks which show that the assemblies cannot be located. This behavior is normal and indicates that you have an uninstalled the version to which they belong.

  2. Select the old assemblies that you identified in the previous step and click Delete to remove them. Keep the names of the deleted assemblies for further reference.

  3. Right-click References and select Add Reference > Add all to add all required references to the new Telerik Reporting assembly versions. These versions correspond to the deleted ones from the previous step. As a result, the newly added references appear in References without the yellow exclamation marks which means that they are valid.
  4. Open the web.config/app.config file and update all version numbers to the new one in the following instances:

    • <configSections>―The location in which you can alter the attributes of the rendering extensions.
    • <httpHandlers>/<handlers>―The location in which the ASP.NET Report Viewer registers its handler.
    • <assemblies>―The Reporting assemblies that are references in the web application.
  5. (For web applications only) Open the .aspx or .master pages and change the version of the ASP.NET Report Viewer in the Register directive. Update the HTML5 Report Viewer files in the project. Open the .cshtml or .vbhtml and layout views, the pure HTML pages or the .aspx or .master pages, and change the version of the links which point to the following files:

    • telerikReportViewer-x.x.x.x(.min).css―The CSS of the HTML5 Report Viewer where x.x.x.x is the HTML5 Report Viewer and Telerik Reporting version (for example, 8.1.14.816).
    • telerikReportViewer-x.x.x.x(.min).js―The JavaScript files of the HTML5 Report Viewer where x.x.x.x is the HTML5 Report Viewer and Telerik Reporting version (for example, 8.1.14.816).
    • telerikReportViewerTemplate.html―The default HTML template page of the HTML5 Report Viewer.

    (For WPF applications only) Update the references to Telerik UI for WPF and the corresponding binding redirects, if any. For more information, refer to the article on manually setting up the WPF ReportViewer. Update the XAML resources which correspond to the updated Telerik UI for WPF assemblies.

    (For Silverlight applications only) Update the references to Telerik UI for Silverlight and the XAML resources which correspond to the updated Telerik UI for Silverlight assemblies.

  6. Open all report resource files as XML―each .resx file appears under the respective report file. Locate all occurrences of a Telerik Reporting Assembly and update the version number to the new one. Unlike the version name (for example, Q1 2008), the version number is a technical identifier (for example, 2.5.8.414).

  7. Restart Visual Studio and rebuild all updated projects.
  8. If compilation errors or warnings occur, review the Telerik Reporting Release History for any obsolete or deleted properties, methods, and events, and handle these according to the instructions. Review the release history for all releases between the previous and the latest version you installed.

Upgrading Website Projects Manually

To upgrade your website project manually:

  1. In Solution Explorer, click the Show All Files button. Select Delete all to remove all Telerik Reporting assemblies from the Bin folder.
  2. From the References tab on the Property Pages of the website, remove all references to Telerik Reporting assemblies. Keep the names of the deleted assemblies for further reference.
  3. Select Add all to add all required references to the new Telerik Reporting assembly versions. They correspond to the ones that you deleted in the previous step.
  4. Open the web.config file and update all version numbers to the new one in the following instances:

    • <configSections>―The location in which you can alter the attributes of the rendering extensions.
    • <httpHandlers>/<handlers>―The location in which the ASP.NET Report Viewer registers its handler.
    • <assemblies>―The Telerik Reporting assemblies that are referenced in the website.
  5. Open the .aspx/.master pages and change the version of the Report Viewer in the Register directive.

  6. Open all report resource files as XML―Each .resx file appears under the respective report file. Locate all occurrences of a Telerik Reporting Assembly and update their version number to the new one. Unlike the version name (for example, Q1 2014), the version number is a technical identifier (for example, 8.0.14.225).
  7. Restart Visual Studio and rebuild all updated projects.
  8. If compilation errors or warnings occur, review the Telerik Reporting Release History for any obsolete or deleted properties, methods, and events, and handle these according to the instructions. Review the Release History for all releases between the previous and the latest version you installed.
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