Upon deeper inspection it appears to be related to the fact that all of the telerik controls are missing from the "toolbox" of visual studio. After I added the Telerik.Reporting namespace back to the toolbox the wizard started working again.
While this particular "failure" seems to be report related, why are we seeing all controls vanish from the VS 2010 environment? I hesitate to blame you folks however its your product that is being "expunged" from the toolbox.
I have tried all the "reset toolbox" commands. Things show up then go away again. I can manually add items to the toolbox however this seems to then require manual changes at the next quarters upgrades.
Even nuking everything does not seem to solve the vanishing telerik toolbox problems.
5 Answers, 1 is accepted
Thank you for your input. The missing data sources is a known issue and we are currently investigating it. Indeed it is related with the Reporting toolbox, so please make sure you have the Telerik Reporting toolbox items available and if they are missing check out Telerik Reporting Toolbox items are missing KB article. This should fix both of the issues.
If the problem persists, please provide us with the installer log, so we can check it for problems.
the Telerik team
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I use VS 2012 and have Telerik (v. 220.127.116.115) installed on my computer. i experienced the exact problem and i did what Steve said but it didn't worked! none of the telerik reporting items where in the toolbox and the data source selecting wizard showed no data sources to select! I reset the toolbox and there was no change in toolbox and data source wizard!
Do these steps, it worked for me, i hope the same for you ;) (This has been tested in VS 2012 Only!)
1- Go to: "Tools" -> "Choose Toolbox Items"
[Note: you can`t see "Choose Toolbox Items" in "Tools" menu if your VS is set to certain development settings. but you should see it if your VS is set to "General Development Settings", however if you want to reset your VS to "General Development Settings" follow these steps
1- Go to: "Tools" -> "Import and Export Settings".
2- Choose "Reset all settings" and click "Next".
3- Choose the way you want VS to save your current settings. Consider that after VS resets you will loose all of your settings
so it is recommended that you create a backup of your current settings to export in VS later. Click "Next".
4- Choose "General Development Settings" and click "Finish".
5- Restart VS.
2- Choose " .Net Framework Components" tab.
3- Check all items related to Telerik assembly. [To do this you can sort the items by "Assembly Name"]. Click "OK".
4- Restart VS.
Now you should see all Telerik reporting Items and all available data sources when you open data source selecting wizard for your report! :)
By Check all items related to Telerik assembly
did you mean ALL items, or just the ones related to Telerik reporting?
Also, do I need to have any other Telerik packages installed for Telerik reporting to work, e.g. ASP.net AJAX?
At the moment I just have Kendo UI Complete for MVC and Telerik Reporting installed, because I don't use Telerik ASP.net AJAX.
You only need Telerik Reporting installed, it does not depend on any other packages. If none of the proposed solutions in this or other forum threads did not work for you, I would suggest adding required data source component directly from the Toolbox (e.g. if you're binding to SQL database, add SqlDataSource). If you do not see Toolbox items either, please consider repairing Visual Studio and fresh install Telerik Reporting afterwards. If that does not help either, please send the log file requested in the KB article.
the Telerik team