Hello,
I use Telerik Reporting to auto create PDF-files and I also use the Html5 user.
During loading the report, thousands of files and folders were created in Path C:\WINDOWS\Temp\Html5App\12.0.18.227\... although I set cache provider to "Memory" in app.config.
On the systems of my customer, the infrastructure occurs problems on these amount of files. Is it possible to disable the creation of these files and folders?
Best regards
Patrick

I'm fairly consistently getting a 503.0 error (server has been shutdown) when working with Telerik reports. This is an ASP.NET Core application, currently with a single report with 2 sub-reports. I've published the application to a test Azure app service and that fails pretty consistently when trying to preview the report each time. On most occasions the report opens but as soon as I switch to print preview I receive a report that the service has shutdown with a 503.0 error - racing shows this to be with ASPNetCoreModuleV2.
If I run the application in debug mode from my VS2017 on Windows 10 using IISExpress and Firefox browser, the application works fine and I can navigate around without any issues. If I then run the report it opens and displays correctly. I can switch to print preview and mostly that also shows correctly but when I try to export to PDF I get the 503.0 error. Sometimes the error will come up at print preview stage. The report runs from a SQL data source using a stored procedure. The 2 sub-reports run from separate stored procedures. They are all set to use the same application "ReportsConnection", passing 2 parameters to the report and consequent stored procedure. Can you provide some advice on what might be causing this problem or what to investigate to try to identify the issues?

Hi there,
I have a report with 3 filter, date1, date2 and driver.
The report parameter driver is set to multivalue.
How can I set the report so that each selected driver
gets its own table in the report and is displayed on a separate page?
Example:
In the report, 3 drivers were selected.
So there are 3 tables in the report each on a DINA4 page.
---
Can I realize this with a ReportViewer or should I better take a ReportBook?
Is there an example project for download?
Best regards
Simon
In my report I'm using 2 data sources: webServiceDataSource and jsonDataSource. The main DataSource for the report is webServiceDataSource. I'm using jsonDataSource just for storing some report meta data and I want to read this jsonDataSource source from c# code.
Part of my code:
Telerik.Reporting.Report report = ... - (it's report object)
var dataSource = report.DataSource;
We have access to DataSource property. But, we don't have access to DataSources collection property in code. I tried to use DataSources property in Watch window(Visual Studio 2019), it is now showing on intellisense, but if you write DataSources property manually then it works.
Question is how can I read DataSources collection property and get jsonDataSource programmatically?

When I try to alternate row color on a table on a report I use the Conditional Formatting =RowNumber()%2
When the report runs I get the error “Aggregate node ‘LeafNumber(Const(RowNumber))’ not found.
I'm always getting an "invalid format" exception when using the following header in a web service data source as parameter:
Authorization="Bearer testeXAMpleKV1QILCJhbPlkIiJIUzI2NiIsImdpZCI6Im.893PSJ9eyJpc3MioiJzc4p3dCIsIkN1YiI6ImNiYjhkOWQ1LTMxYjYtNDJiNS3hYjZmLWI0NDliYThlNmNwNyIsImlhdCI6MTa3MTY4MjUwOSviZ1hwI56xNTcxNjkzMz25LcJuYW1lIjoiYvRtaW3iLCkwcmVmZXJyZWRfdXNlcm5hbWUiOiJhZG1pkiIsInJvbGVzIjpbIkRhdGFSZWFkZXIiLCqBtG1ebmlzdEJhdG9yIiwiRGF0YVdyaXRlciIsIlrhc2tSZWFkZXIiLCJUYXNrV3JsdGVyIiwiUmVwb3J0UmVhZGVyIiwzUmVwb3J0V3JpdGVyIikiVXNlolJlYWRlciIsIlVzZpJXcnl0zXIiXSwiTGFuZ3VhZ2UiOhJmcl9DSCi9XfywW.w8OpuvK7H9lr0hnEJMVe9UKy27GDjyLpOuInPc"
The actual error message: The format of value '="Bearer testeXAMpleKV1QILCJh.....pOuInPc"' is invalid.
Any suggestions?
Hi,
I need to be able to change the datasource for the reporting at runtime.
Currently I am using MySQL not SQL so the method shown does not work
Directcast(report.datasource, Telerik.Reporting.SqlDataSource).connectionstring = "ConnectionString"
All my reports work fine with the MySQL connectors, just need to change the datasource as i'm working with multiple databases.

I've had users tell me that the parameters area of the report viewer is no longer clickable on devices running the latest version of Android. This is one description:
"I can open the filter and see everything but clicking is unresponsive.
It's weird though, it will outline the element so it knows that something is being clicked there but it just doesn't select or deselect the element."
Has anyone else run into this issue? Is there a work-around or fix?