Ctrl Space Not Working in Eclipse Helios on Win 7

Question

I have shifted by Dev Env recently to Eclipse Helios on Windows 7. After that the Ctrl + Space Content Assist feature is not working. I found out that that key option is utilized by Language Settings. I have tried disabling it. But it still doesn't work in Eclipse.

Any help is much appreciated.

Answer 1

On my Ubuntu, Xfce, ctrl space was allocated to switch language on the iBus preferences (if you have this running, you will see the 'i' icon on the task bar, right click and choose preferences). To change this, bring up the IBus Preferences, on the General tab, see the "Enable or disable:" option, click the ellipses and provide a different keyboard assignment.

This sorted me out without need to restart Eclipse.

Answer 2

You probably have another application (in systray) that uses Ctrl+Space for something else. In my case I have a small utility which when I press Ctrl+Space makes the active window on top.

The solution for you would be to (1) exit that application which overrides the keys or (2) in Eclipse change Ctrl+Space to some other set of keys.

Answer 3

I use eclipse indigo and had this problem. Creating a new workspace did not worked.

Go to Windows->preference->General->Keys->"Restore Default" - This fixed my issue

Note that I just had English(US) on windows 7 [Control Panel-> Clock,Language and Region ->Change keyboard or other input methods-> Keyboards and Languages->change Keyboards...->General ==>Default language is English and Installed Services I just had English(US) alone

After doing this some you might need to restart the system if it does not fix.

Answer 4

!Screenshot of Eclipse Juno, I had the same problem, then I changed it to different key combination, then it works.1

Answer 5

In Eclipse you can use the Alt-/ character sequense instead of Control-Space. This is an old problem which Eclipse and Chinese keyboards, which they addressed by adding this short cut.

Answer 6

In my case nothing happens after pressing Ctrl+Space. Right now I have set a different short cut for the same and solved

Check your "Keys" preferences: maybe the Content Assist" shortcut has been overridden by another command which would also use Ctrl+Space.
That could happen with the installation of a new plugin, coming with its own set of commands and shortcuts: the bug 303894 for the XText plugin is a good example.