Our clients enter information using the radeditor and in many cases want to embedded tables and graphics into their text.  Using your reporting tool there is no way to print this information.  I know you have suggested using your table and image tools, but that doesn't work when you are dealing with freely formatted text so the existance and location of the tables and images cannot be predicted.

I have projects on .NET Core and I want to use the System.Text.Json serializer that is the new default, but reporting relies on Newtonsoft.Json.

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ADMIN EDIT

There are two approaches that can be taken right now to solve this:

OPTION 1: define separate endpoints (services, projects) for the different tasks - they can still use the same database layer through a shared project, depending on the architecture you have. This would let you have separated services with the appropriate serializers without custom attributes and code (see below). For example, create a separate project for the reporting REST services.

OPTION 2: add some custom decoration on the endpoints so you can choose which serializer is used on each, you can find some examples here: https://stackoverflow.com/questions/59650907/how-to-configure-two-json-serializers-and-select-the-correct-one-based-on-the-ro - the point being to register a serializer depending on the endpoint based on your own code rather than let the framework put one in for all endpoints.

NOTE: This would be a breaking change.

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Add the ability to specify rounded corners for the border of TextBoxes, Pictures, Tables and all other similar controls.

As a Telerik Report designer and user, I would like to be able to access the page number from the different report sections (not only from the page header/footer). So that I will be able to set additional custom formatting of the different sections based on the page number.

In the standalone designer, it would be helpful if you could drag and drop the column headers to reorder.  At present you have to add a new column and delete the old one, remembering to copy all properties.

It would be very helpful for us people that have been using Telerik Reporting in Silverlight (or WPF) applications to have access to a Report Viewer for Windows Store Apps (XAML).  The future of Silverlight is unclear at least and there are many Line Of Business Applications currently running under Silverlight and I know of many developers that are looking to port their LOB apps to Windows Store Apps (or Universal Apps).  The current HTML5 Report Viewer does not provide printing when it is implemented in browser window in Windows Store Apps so we cannot really offer this option to our customers.

Add Right to left attribute to the three levels of the reports, with default 'inherited' of child levels:
Level 1: The report document
Level 2: Report Section
Level 3: All type of object and controls including Table/CrossTable

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.

Please add the ability to specify the graph series colours dynamically via binding expressions instead of hardcoding predefined values in palette or conditional formatting. 
lineSeries.Style.LineColor = "= Fields.HexColour";

We often receive feedback regarding hard/impossible editing of reports after they are exported to Word format.
The existing rendering mechanism will produce Word tables which are harder for manual editing - http://docs.telerik.com/reporting/designing-reports-considerations-word

Let us know in comments about your experience with editing reports exported to Word format so we can understand more clearly what is required from Reporting Word rendering extention.

Add progress bar that indicates when the report would be fully rendered.

as Microsoft is going into Power Bi it is worth to take over SQL Server Reports possible to convert to Telerik Reporting

After reviewing other users questions/issue it appears this hasn't been addressed.

When creating a TABLE group (not a group header/footer) the TABLE group header has no option of displaying on each page when the group spans multiple pages. The advice to make ColumnHeaders = True doesn't help because when you add a group header that row is inserted below the table's header row and thus this doesn't apply to the group header row. 

I'd like to suggust a setting in the table group properties menu to display the header on each page, ideally with an option to display a suffix such as "cont."  

able to modify the line spacing in paragraph

This function would allow you to lookup a value from another data source with a value that is in your current data source.  It would return the first matching value for the specified name from a data source that contains name/value pairs.

This would allow the porting of many SSRS reports over to Telerik Reporting.

Example: 

I have a report which lists all sales staff in our firm, with other personal information. We have a multi-dimensional data source (Cube) where we have all the financial data stored and calculated. 

If I wanted to retrieve the total sales and total revenue that each member of the sales staff had, it would require me to use a sub-report to load the data (using a parameter to pass the staff member's unique ID).  

This causes the loading/generating of the report to take longer, as the query against the Cube has to happen for each member of the sales staff, because of the use of a sub-report. With this new LOOKUP() function, it would allow the data source to be loaded and the report would be able to lookup the sales and revenue values for each staff member ID.

Dark theme is so much needed.

Add a property to be able to suppress duplicate values in a column, which could be  optionally shown after a page break.

Hi

I need to adjust line spacing in multiple line textbox but currently there seems to be no way to do that. Please add this feature!

Thanks

I had a very challenging time getting Telerik Reports to work with my business objects. I'm not the only one -- see this thread:

http://www.telerik.com/forums/how-to-use-object-data-source-in-report-designer

This could be improved by:
1. Don't make users manually edit <Telerik.Reporting>. Create a UI in the designer where DLL's can be manually selected.
2. If there are errors loading the DLL's in <Telerik.Reporting>, tell the user, rather than failing silently, which is the current behavior. Importing reports from DLL's has the same silent-failure behavior: if there's something not quite right about the DLL's (wrong architecture setting, for example), you just see "no reports to import" rather than the actual error (bad file format, or whatever).

I think a little work on the user experience around custom business objects would make new users who want to use the stand alone report designer in this way much happier. I was really surprised and frustrated that a modern product would fail like this with no exposed error messages.

When trying to duplex print a report that has odd page numbers, the next report's first page prints on the back of the previous report. We need the ability to conditionally insert a page break based on whether the report's (the group's) page count is odd or even. Since we don't have access to the global pagecount variable outside the footer, there is no way to use it to insert a page break into the body of the report. This seems like it would be such a common need with the desire by many to save paper that it would be an obvious feature to include in the product. Thanks.