Add posibility to force redraw.

[filipgorny]

Relating to this stackoveflow entry: http://stackoverflow.com/questions/22066261/handsontable-doesnt-appear-before-click-or-some-other-operation/22070768#22070768

I had an issue using handsontable with backbone.

I run the plugin on element not attached to the dom, and it doesn't show until I click on the table.
I tried to do ht.render() but it didn't work. Adding the parameter for FORCE option solved problem.

[filipgorny]

Unfortunately as I can see this is an expected behavior - not to draw

when the element is not visible. This is a blocker when using Backbone View.

[filipgorny]

I decided to use custom forceDraw() method.

[renathy]

I am using knockout binding that happens inside modal window. Modal window as well as DOM element for table is not visible first and I have the same behavior - element is not drawn until clicked.

[filipgorny]

@renathy you can use this forceDraw() method after binding.

[renathy]

I am not able to understand how to use it. I do not know how to get handsontable instance. I use this binding (at the bottom of js part there is binding with 'init' and 'update'): http://jsfiddle.net/calvinslusarski/x3ejL/2/, this example works fine, but not mine on real application.

[psmolenski]

The reason why an element needs to be visible in order Hansontable to render is because there are quite a few places where Handsontable reads height, width and offsets of table elements. If the table is not visible, then the browser can't define those properties accurately, therefore there is a hight risk that table won't be displayed as expected or even there might be some exceptions thrown.

I strongly advice not to force the table render, when the table container is not visible. Instead you should wait until a View becomes visible and then call render() method (without force parameter).

[marcok]

is there any relation to my issue? #1349