I would like the end user to be able to resize the DocumentMap and if possible the Parameters Area.
Many times when the names are long they are cut off.
Many of my user will have clients will have similar names like law firms with a particular attorney name appended.

Example:
LAW FIRM OF DOUCHE AND BAG - JAMES SMITH ESQ
LAW FIRM OF DOUCHE AND BAG - KIM JONES

With the current implementation it would be cut off before you could see the end of the name.
LAW FIRM OF DOUCHE AN
LAW FIRM OF DOUCHE AN

This requires them to use the scroll bar back and forth instead of resizing the area like the old webforms viewer.
Please see picture for references.
Also if there was an option for the names to have tooltips so they could just hover that would be helpful.

The parameter map at least will wrap the names that are long it’s the DocumentMap that is the bigger problem.
Thanks John

Currently If you want to hide one filter out of many based on other value. this is feature is not available in report now. below the my ticket for you same. I wish this feature include out of the box.

https://www.telerik.com/account/support-tickets/view-ticket?threadid=1102630

Currently the gridlines are displayed only under the series but in some cases it would be better to be visible over the series. In case the graph displays Area series and then Line series over the Area, the Area hides the gridlines so they can not be used to match the X and Y on the Line series.

Please provide support for GeoJson format to create World Map in Telerik Reporting.

please add a  feature to set multiple color palette for graphs series and based on user selection we should be able to  switch them conditionally

Currently report parameter types are limited. We would like to pass a data table as a parameter . Tried formatting to table string outside and using HTMLTextbox, but it does not parse <table > tags. 

Please add full support for asp.net Core. What you currently have is not nearly complete. We need to be able to use the report designer and add reports in a .net core project and we need to be able to use reports that have objectdatasources. Currently object datasource does not work with .net core dll's.

Have control on the Parameters Area's initial state on creating the viewer

When printing the Online Documentation from Internet Explorer, only the first page is printed. The only way to print it, is to copy the page to Word and then print it.
Please add a method of printing a topic.

The problem is not getting the error via Dot Net programming, but the complete layout destruction of the report as a result of the fact that a picture (in our case a thumbnail of a provider) is unavailable. Catching the report error is not an option. It is too complicated and even if we succeed  in obtaining the error, it will be very complicated to remove the unavailable url on the fly and re-render the report again. 

This seems to be a "known issue" for about 8 years!

My question: Is it possible to keep the remaining report "intact" if such an error occurs? This shouldn't be too difficult for the development team..

HTML content is currently displayed verbatim in Report Viewer Tooltips. Tooltips should work as kendo tooltips usually do, rendering HTML when detected.

Please support OData services as built-in report datasource.

We would like to use Telerik Reporting and Report Server but the missing support for OData is holding us back.

If the controls and PDF generated from Designer or API from scratch will be 508 compliant? PDF needs to be tagged, so when a reader reads its images have text alternative for it to read.

Multi-value parameters are not formally supported in Telerik Reports that are based upon a Stored Procedure datasource. To circumvent this, I currently use a workaround as detailed in a post by me in the reporting forum here:

http://www.telerik.com/forums/how-to-pass-multi-value-parameters-to-a-stored-procedure-datasource

One of your admins, Nasko, suggested Telerik may look into implementing this procedure out-of-the-box to streamline it for users, hence I am posting this suggestion here to track it.

For an out-of-the-box implementation, it would be nice to see the possibility of setting a parameter datatype to "List" or something similar to denote it will send a serialized string to a Stored Procedure datasource and do the Join() of the selected multi-value parameter items automatically. It will still depend upon having a table-based function in the target database to de-serialize it though, I suspect.

A common scenario is to specify the printer name when printing a report.

Currently, this can only be achieved with manual printing where you can pass the PrinterSettings object(https://msdn.microsoft.com/en-us/library/system.drawing.printing.printersettings(v=vs.110).aspx) with specified PrinterName as a parameter to ReportProcessor.PrintReport method.

Let us know if you think exposing the PrinterSettings object (for example as the setting of the viewer) would benefit when working with reports. Please share your thoughts and ideas on this topic in the comments.

Thank you.

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";

Currently, adding Sparklines (http://docs.telerik.com/reporting/sparklinesanddatabars#sparklines) or Data bars to the report requires manual formatting of the Graph item (hiding the Axes, Labels etc.).

Let us know if you think the built-in support for this type of chart would be useful when creating reports. Please share your ideas/thoughts in the comments and give a vote for this feature to support it.

An example of Sparklines/Data Bars is provided in our online demos - http://demos.telerik.com/reporting/product-sales?&skinName=silver(Product Sales report).

Thank you.

freeze certain columns in a table when we scroll right and left in Telerik Report and the same should be applicable when we do export to excel