Hi
I've narrowed the issue down to IE8/9 and 10 using paramquerygrid v3.0.0. I tried to put a jsfiddle together but it doesn't run in IE8 so please find attached zip with a sample that you can run in IE8/9 and 10. It works in Firefox and Chrome
Here is the jsFiddle sample (
https://jsfiddle.net/jeanproux/yrdxLf1q/4/). You will see that it works fine in IE11.
the issue is if you edit a cell in the "Shipping address" column, adding multiple lines of text, move off it and then try to edit that cell again the cell doesn't go into edit mode again. The editor briefly appears and then cell removes it again. It also seems that the specific html structure plays a role. If you remove the "outerDiv" div then it runs in IE8 but when the grid div is surrounded by another div the editor fails to open. Another way I got it to work in IE8 is to set flexHeight to false, then the cell can be edited again? The problem with the flexheight=false is that the grid doesn't show nicely so we would like it to be true.
Please can you have a look at the sample. Could it be the version of the grid or jquery that is causing it. I used no other stylesheets or js files that could influence the display as you can see in the sample. The only style I use is the one you use on your demo.
Thanks