The path is not of a legal form error message on processing a Telerik Report in a project targeting .NET 4.6.2 framework
Environment
| Product | Progress® Telerik® Reporting |
| Framework | .NET Framework 4.6.2 |
Description
The path is not of a legal form error message is thrown on processing a Telerik.Reporting.Report in a project targeting .NET 4.6.2 framework.
Error Message
An exception has occurred while processing 'pictureBox' item:
System.InvalidOperationException: Invalid image data. ---> System.ArgumentException: The path is not of a legal form.
at System.IO.Path.NewNormalizePathLimitedChecks(String path, Int32 maxPathLength, Boolean expandShortPaths)
at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength, Boolean expandShortPaths)
at System.IO.Path.InternalGetDirectoryName(String path)
at Telerik.Reporting.Processing.Imaging.ImageUtils.ResolveBasePath()
at Telerik.Reporting.Processing.Imaging.ImageUtils.GetImageData(Object value)
--- End of inner exception stack trace ---
at Telerik.Reporting.Processing.Imaging.ImageUtils.GetImageData(Object value)
at Telerik.Reporting.Processing.Imaging.ImageDataHelper.StoreImageData(Object key, Object value, IImageInfoMap imageInfoMap, ICache cache, String& imageDataKey)
at Telerik.Reporting.Processing.PictureBox.ResolveImage(Object value)
at Telerik.Reporting.Processing.PictureBox.ProcessItem()
at Telerik.Reporting.Processing.ReportItemBase.ProcessElement()
at Telerik.Reporting.Processing.ProcessingElement.Process(IDataMember dataContext)
Cause
The Exception occurs on processing a Telerik Report that contains a resourced specified by file path e.g. ='C:\Pictures\MyImage.png.' used as PictureBox.Value property.
Solution
Add the following setting in the running application's configuration file, in the runtime section:
<runtime>
<AppContextSwitchOverrides value="Switch.System.IO.UseLegacyPathHandling=true"/>
</runtime>
Notes
The setting will be applied only to the running application. It lets file paths to be specified as before .NET 4.6.2 framework without getting System.ArgumentException.