I installed Reporting on my Windows without a database server. I chose to install with the examples so I can later provide a valid connection string for them.

Here is the connection string from the XML configuration that breaks the Standalone Report Designer applications:

<connectionStrings>
        <clear/>
        <add name="Telerik.Reporting.Examples.CSharp.Properties.Settings.TelerikConnectionString" connectionString="Data Source="No Local Servers Found!";Initial Catalog=AdventureWorks;Integrated Security=True;Password=" providerName="System.Data.SqlClient"/>
</connectionStrings>

Note the quotation marks inside the DataSource value that make the XML invalid.

Previously, the same scenario resulted in the following connection string that didn't break the XML structure:

<connectionStrings>
    <add name="Telerik.Reporting.Examples.CSharp.Properties.Settings.TelerikConnectionString"
        connectionString="Data Source=No Local Servers Found!;Initial Catalog=AdventureWorks;Integrated Security=SSPI"
        providerName="System.Data.SqlClient" />
</connectionStrings>

Currently, to start the designers, I must fix the configuration files manually or install the Reporting without examples.

The issue is caused by an issue in the SQL DataSource Wizard that doesn't provide the correct Data Provider name. In the wizard on the first page, the Data Provider must be MySql.Data.MySqlClient, but the option is limited only to MySql.Data. Since the engine cannot determine the type of the data provider by that name, it falls back to System.Data.SqlClient and claims that "Port" is not a supported keyword.

When a Table has a Group PageBreak that splits the Table into more than one page, the items below the table are rendered after the first part of the Table (after the first page break), rather than under the whole table.

The issue occurs in hard pagination: PrintPreview of the viewers, PDF, etc.

After upgrading Telerik.ReportViewer.BlazorNative to version 20.2.26.1007, rebuilding a project targeting .NET 9 or later fails with the following error:

Severity Code Description Project File Line Suppression State
Error (active) The asset 'C:\...\BlazorApp1\Debug\net10.0\compressed\14jp1i84hx-{0}-2x8nbomfaf-2x8nbomfaf.gz' can not be found at any of the searched locations 'C:\Users\<user>\.nuget\packages\telerik.reportviewer.blazornative\20.2.26.1007\staticwebassets\css\reporting-blazor-viewer.css.map' and 'C:\Users\<user>\.nuget\packages\telerik.reportviewer.blazornative\20.2.26.1007\staticwebassets\css\reporting-blazor-viewer.css.map'. BlazorApp1 C:\Program Files\dotnet\sdk\10.0.301\Sdks\Microsoft.NET.Sdk.StaticWebAssets\targets\Microsoft.NET.Sdk.StaticWebAssets.Compression.targets 276

-----------------------------------------------------------------------------------

The issue occurs because the NuGet package declares a CSS source map as a static web asset but does not include the corresponding file.

For the available workarounds, refer to the following Knowledge Base article: Missing CSS source map causes build failure in .NET 9 and later with Telerik.ReportViewer.BlazorNative 20.2.26.1007

The data source preview in the web report designer does not show the full shape of the query. It has no horizontal scroll bar to verify the preview data for the entire projection.

Please consider addressing this.

I use Zoom in my report definitions, which I edit with the Standalone Report Designers. The TRDP and TRDX reports work fine with Zoom. However, if I save a report with a non-default Zoom (e.g., 4.0) to the new TRDJ format, then I cannot open this report in the designer.

Here is the exception when trying to open the TRDJ report:

System.ArgumentException: Object of type 'System.Double' cannot be converted to type 'System.Single'.
   at System.ComponentModel.ReflectPropertyDescriptor.SetValue(Object component, Object value)
   at Telerik.Reporting.Serialization.ObjectReader.ReadValue(Object obj, PropertyDescriptor prop)
   at Telerik.Reporting.Serialization.ObjectReader.ReadAttributes(Object obj, PropertyDescriptorCollection props)
   at Telerik.Reporting.Serialization.ObjectReader.ReadProperties(Object obj)
   at Telerik.Reporting.Serialization.ObjectReader.ReadObject(Type type)
   at Telerik.Reporting.Serialization.ObjectReader.ReadXmlElement(String name)
   at Telerik.Reporting.JsonSerialization.JsonSerializer.Deserialize(String value, IResourceHandler resourceHandler)
   at Telerik.ReportDesigner.Packages.ReportDesigner.Serialization.JsonDocDataHandler.<>c__DisplayClass8_0.<DeserializeReport>b__0()
   at Telerik.Reporting.Interfaces.IAnalyticsExtensions.UseFeature[T](IAnalytics analytics, Func`1 func, String featureName, String featureCategory, Field[] extraParams)
   at Telerik.ReportDesigner.Packages.ReportDesigner.Serialization.JsonDocDataHandler.DeserializeReport(IDesignerLoaderHost targetHost)
   at Telerik.ReportDesigner.Packages.ReportDesigner.Serialization.ReportDocumentDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)

We render reports to PDF with ReportProcessor.RenderReport, and several renders run in parallel in the same process (background jobs). Occasionally the report items show this error inside the generated PDF instead of their values: "An error has occurred while processing TextBox 'textBox8': Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state. The collection's state is no longer correct."

I use the Verdana font in CheckBox items.

In HTML5 and Blazor Report Viewers, the characters like 'p', 'q ', and 'y' appear cut off, just like in this issue:

https://feedback.telerik.com/reporting/1719807-the-text-styled-with-fonts-like-verdana-may-appear-cut-off-in-web-report-viewers

The workaround with top and bottom padding doesn't work for CheckBox, though.

At the moment it's only possible to have your reports in old-fashioned projects.

It should be possible to add/design reports to SDK-style projects. That should work no matter what target framework is (.NET Core, .NET Standard or .NET Framework).

I use the Verdana font in my report titles. In the desktop designer and PDF documents, the text appears as expected.

In HTML5 and Blazor Report Viewers, though, the characters like 'p', 'q ', and 'y' appear cut off:

I have a CS report that contains a SubReport with InstanceReportSource. I have it in a .NET 10 Classlibrary project.

I tried to edit this report as a coded report in SRD.NET. However, when I saved the report, in the 'designer.cs' file, the value assigned to the ReportSource of the SubReport was set to 'userreport1' that is not instantiated and throws.

It would be good a maintain the scroll position on the parent page while navigating back from a drill-through report (using the back button of the report viewer) specially if the parent page contains a vertical scrollbar. This would enhance the user experience and eliminate the need to scroll back to the original position.

Almost any object can be set to grow (CanGrow = True). Which makes the object grow if the text is too long.

I believe you need a function for making the text fit inside the object.

“ShrinkToFit = True”

This would shrink the text so that it fits inside the object. So if the font size is 20 and a long text wouldn’t fit inside the object, the font size would shrink until it fits.

Today we need to set several conditional formatting rules for this and it’s far from perfect. 

Currently, the desktop viewers don't allow adding custom headers to their requests to the service.
In HTML5-based web viewers, this is possible through the AjaxPrefilter event.

Images taken with a mobile device are sometimes displayed in PictureBox  rotated by 90, 180 or 270 degrees. The reason is that whenever a photo is taken, the device saves its current accelerometer orientation into a corresponding Exif tag with the image metadata, so this info is then read and taken into account by our Report Designer.

When exporting to PDF from Telerik Report Designer the software creates a list of flat links for each TOC entry, but the links are separated in the structure from the TOC Label. While a good start, it would be better to use a main TOC tag under which each line in the TOC would receive a TOCI (Table of Contents Item) tag. Each TOCI would contain the label and link for the respective item. Attaching a few examples to assist.

References:

https://www.hhs.gov/sites/default/files/pdf-tagging.pdf (page 29).

https://www.pdflib.com/pdf-knowledge-base/pdfua/the-pdfua-standard/ 

In Telerik Reporting versions before 18.1.24.514, I could change the order of items in a section by dragging an item up or down in the Report Explorer list.

If I try that now, nothing seems to happen on the screen. Dragging does not appear to change the position of an item in Report Explorer; the item appears to be fixed in place.  However, if I close the report and reopen it, the position of the item may have changed.

The same happens if I use Send To Back/Brink to Front on an item.  The new item position is not updated in the Report Explorer.