Hello,
I already developed in the past with your WPF controls and I'm mostly very happy. The controls are nice and the programming model (MVVM) is well done. I always recommend your controls the all my friends developer out there.
For a new project, I'm evaluation the Report Design + Viewer and I must say I'm very disappointed by the all product. 
First the general looking and feel seems coming from an old Visual Basic 6 age with outdated button toolbar + gui; non sizable dialogues like the one to choose fields (attached) With data source coming from entity model, the field and navigation property are often long and this is painful and useless to scroll horizontally to see the field name.
Coming back to data source, the report wizard is also confusing asking for an data source name rather than asking for an existing connectionstring and then create a new one for your need internally if needed. Also, the experience with an existing data model object is poor because the Data Member question is not obvious and when I select one the entity table, the wizard prompt with an alert see capture attached. If I don’t select any member, no alert but the field list is useless because I don’t see any field (see capture).
In conclusion, it seems to me the Report components are not done by the same team or at least are not develop in the same spirit and quality than the other controls.
I hope you will bring us a brand new controls asap.
Thanks for reading me 
Best regards
-Vince

I'm planning to use Telerik Reporting as the reporting soltion for a customer portal that I'm developing. This portal will be sold to multiple customers and amongst other things the customers will be able to add their own reports that they will build using the Stand Alone Report Designer.
Please consider adding a Query Builder, similar to what is in the Visual Studio version of the Report Designer to the Stand Alone Report Designer as this will greatly enhance the user experience and negate the need to use other tools to build the queries, especially as many end users would not have access to tools such as SQL Management Studio, etc.

Regards

Edu

When might Telerik come out with a standalone reporting tool?

The current implementation of the WebAPI ReportController requires that is run as a Singleton. When running on Azure with multiple instances, it doenst work well. For deployments with large amounts of HTML reportviewer clients, one report server is not enough, it needs to scale. I suggest putting shared reportcontroller state (resources) in a configurable external out of process multiple concurrent access safe data structure. Solutions could range from database to shared in memory nosql, for instance Redis or Azure cache.

We use Telerik reports for many different things.  We generate reports, letters, mailings, excel documents and forms or applications.  Our applications can either be blank or pre-filled or completely filled with information from the user.  Now I realize that you can say that all of these are forms of reports, but I would submit that is only partly correct.  I tell people that Telerik reports is a way for me to produce output that can be electronically distributed or printed.  While that is a definition of a report, I think it can go a bit further.

If you think about PDF forms and what they are, they are a report that allows the user to add additional information and send back to the customer.  I do realize that some features of PDF forms allow for scripting that can automatically submit, and there is a lot of other capabilities that moves PDF forms outside the realm of basic report generation. That being said, the ability to set a parameter in a report whereas the fields are replaced with basic text input PDF fields would be a huge advantage for Telerik.  I could see them opening up the forms generation market for this product.

While I have no input into your roadmap and, as a former Product Architect for a software development firm, I fully understand scope creep and keeping product focus, I would love to see:
1) a parameter export to PDF that converts the fields (everything that has a Fields.XXXX keyword somewhere in the value property) to PDF form text fields without adding data.  I would set the length the same way you set the horizontal length of the field on the report.
2) a parameter on a field item that says this field cannot be converted into a form field and must have data.
3) a parameter on reports indicating that when generating PDF form fields, that X number of rows are generated for the detail section.
4) if a field value is too complex or if the report is too complex, I would just fail over to a blank value.
I realize there are a lot of capabilities in PDF forms, but I tried to keep my wish list confined to the basics that would allow for easy additions to support advanced capabilities post report generation.

All this being said, I have communicated to my customers that Telerik is not going to support PDF form fields and we have an upcoming meeting to discuss this requirement.  I have a lot of resources, time and money invested in the development of Telerik reports and it is a concern that I may have to remove Telerik reports from our solutions because of a need to support this PDF capability.  We have reports on multiple different platforms and I feel that Telerik Reports is one of the best in terms of use on many different styles of applications. But since I am a firm believer in using as few technology vendors as possible (and only want a single reporting solution), I am concerned about having to re-architect our solution reporting infrastructure to remove Telerik reports.

In the attached photo, I combined the first 2 pages of the PDF I get when I export the reports as a PDF (there were 198 pages in total). The second page is the continuation of the bar chart, as the bars expand. This is not readable or insightful to a user who wants to view the report, as he/she can not see any of the labeling of the X or Y axis on the second page. I would like to see labeling of both the X and Y axis on each page, so that the reports are easier to read. The same applies for graphs, columns, and table reports as well. 

Telerik.reportdesigner.exe crash with Null reference exception when add new object datasource with "Choose a data source member".

WPF can display very complex text, like mathematical function, or create intricate image.
Such feature is missing in Reporting.
A function should exist in Reporting to render a WPF control as image in report for such case (using RenderTargetBitmap).

The Reporting Graph item support now only one data source, unlike RadChartView.
When displaying different collection, we must for the moment put everything in one collection, and group/filter in Graph, because of this limitation.

The expression language leaves much to desire, especially when working with object models. The most irritating is the iif function that evaluates all expressions, that forces to write user functions every time a method on an optional object should be called.
Ideally the scripting/expression engine is based on c# and/or vb compiler.

I would like to be able to write an expression that will call a user function when the ItemDataBound event fires for the report.  This would allow me to wire up the custom functionality that we have built so that the user can see the result from the preview in the designer.  Currently the user has to go to a preview window in our application to see the result but if I had a way to wire the ItemDataBound event for the report then I could make it possible to see the result without leaving the designer.  

I thought that if you made this possible for the report it probably would make sense to enable it for all controls since they all have the the ItemDataBinding and ItemDataBound events.  In my case I don't know how I could implement this any other way because it needs to run after the binding has completed for the entire report.

Telerik Reporting Online Examples have lots of examples of reports, but no examples of how to call these reports!   I'd like to see examples of calling a report from a button on a page, or calling a report by clicking on a button in a radgrid row, and of course passing parameters from said pages or grids.

Hi Telerik!
I spent lots of time investigating the following situation.
For some reason the editor that I used to modify Telerik.ReportDesigner.exe.config file switched xml elements names to lowercase.
ReportDesigner was not started at all in that case. Even no error message was shown.
I had to explore system events logs and found that ReportDesigner.exe throwed an System.IO.FileLoadException.
But still with no details.
Only after hours of exploring I found the problem with xml-element names and fixed it.
I think if you add .config file validation with user-friendly messages during ReportDesigner starting it will help.

We have developed additional logic around the Telerik Reporting Engine so I don't know if this would be valuable to anyone else or not but I would love to have the ability to associate custom properties to a control.  

The use case that comes to mind most is the logic we have implemented to auto size text that displays on a report to fit in the area provided.  We use a control naming scheme to determine what controls should be auto sized and how they should be sized in relation to other parts of the report.  It is typically assigned used with a Panel, a TextBox, or an HTMLTextBox.

I would love to have the ability to add two associate two additional properties to these controls that could be used in the stand alone designer to allow users to set an AutoSize (true / false) and a SizingGroup (string) property on these controls rather than worry about making sure the control is named properly.  I would allow users to more easily leverage this functionality.

I realize that it is unlikely that this will be implemented since it wouldn't be widely used but I like to dream.

I want to download patch Q3_2012_SP1_v6_2_13_110 for reporting but unable to get it. I unable to find the link. could you provide link for this?

Running the report book demo in Chrome v "34.0.1847.116 m" under Windows 8 crashes the Silverlight plugin. This does however not happen under I.E 11.

http://demos.telerik.com/reporting/report-book/silverlight-demo.aspx