I am using Devexpress 12.2.7 in Visual Studio 2013, it's work OK. After uninstalled and reinstalling DevExpress, everything come to crash, I cannot see any Devexpress control in toolbox, neither in "Add new item". I ran Devxpress repair, no work Uninstall an reinstall DevXpress, no work Uninstall and reinstall VS, not work
How can I fix this?
Please see the Visual Studio Support History help topic. According this document, DevExpress components of version 12.2 cannot be used with Visual Studio 2013. The cause of such limitations is that newer Visual Studios have a different registration mechanism for add-ins, thus you can't use the "Add new item" add-in.
Anyway as far as I know many VS2013-compatibility issues were fixed in version 12.2.15 to supports Visual Studio. So at-first I suggest you upgrade to the latest version of v12.2 (12.2.18 for now).
Then (if some issues with toolbox remains) you can try the solution based on manual tuning of some registry keys.