...
```
```javascript
$('.grid-stack').gridstack({width: N});
```
See example: [2 grids demo](http://troolee.github.io/gridstack.js/demo/two.html)
## Save grid to array
Because gridstack doesn't track any kind of user-defined widget id there is no reason to make serialization to be part
of gridstack API. To serialize grid you can simply do something like this (let's say you store widget id inside `data-custom-id`
attribute):
```javascript
var res = _.map($('.grid-stack .grid-stack-item:visible'), function (el) {
el = $(el);
var node = el.data('_gridstack_node');
return {
id: el.attr('data-custom-id'),
x: node.x,
y: node.y,
width: node.width,
height: node.height
};
});
alert(JSON.stringify(res));
```
See example: [Serialization demo](http://troolee.github.io/gridstack.js/demo/serialization.html)
You can also use `onchange` event if you need to save only changed widgets right away they have been changed.
## Load grid from array
```javascript
var serialization = [
{x: 0, y: 0, width: 2, height: 2},
{x: 3, y: 1, width: 1, height: 2},
{x: 4, y: 1, width: 1, height: 1},
{x: 2, y: 3, width: 3, height: 1},
{x: 1, y: 4, width: 1, height: 1},
{x: 1, y: 3, width: 1, height: 1},
{x: 2, y: 4, width: 1, height: 1},
{x: 2, y: 5, width: 1, height: 1}
];
serialization = GridStackUI.Utils.sort(serialization);
var grid = $('.grid-stack').data('gridstack');
grid.remove_all();
_.each(serialization, function (node) {
grid.add_widget($(''),
node.x, node.y, node.width, node.height);
});
```
See example: [Serialization demo](http://troolee.github.io/gridstack.js/demo/serialization.html)
If you're using knockout there is no need for such method at all.
## Override resizable/draggable options
You can override default `resizable`/`draggable` options. For instance to enable other then bottom right resizing handle
you can init gridsack like:
```javascript
$('.grid-stack').gridstack({
resizable: {
handles: 'e, se, s, sw, w'
}
});
```
Note: It's not recommended to enable `nw`, `n`, `ne` resizing handles. Their behaviour may be unexpected.
## IE8 support
Support of IE8 is quite limited and is not a goal at this time. As far as IE8 doesn't support DOM Level 2 I cannot manipulate with
CSS stylesheet dynamically. As a workaround you can do the following:
- Create `gridstack-ie8.css` for your configuration (sample for grid with cell height of 60px can be found [here](https://gist.github.com/troolee/6edfea5857f4cd73e6f1)).
- Include this CSS:
```html
```
- You can use this python script to generate such kind of CSS:
```python
#!/usr/bin/env python
height = 60
margin = 20
N = 100
print '.grid-stack > .grid-stack-item { min-height: %(height)spx }' % {'height': height}
for i in range(N):
h = height * (i + 1) + margin * i
print '.grid-stack > .grid-stack-item[data-gs-height="%(index)s"] { height: %(height)spx }' % {'index': i + 1, 'height': h}
for i in range(N):
h = height * (i + 1) + margin * i
print '.grid-stack > .grid-stack-item[data-gs-min-height="%(index)s"] { min-height: %(height)spx }' % {'index': i + 1, 'height': h}
for i in range(N):
h = height * (i + 1) + margin * i
print '.grid-stack > .grid-stack-item[data-gs-max-height="%(index)s"] { max-height: %(height)spx }' % {'index': i + 1, 'height': h}
for i in range(N):
h = height * i + margin * i
print '.grid-stack > .grid-stack-item[data-gs-y="%(index)s"] { top: %(height)spx }' % {'index': i , 'height': h}
```
There are at least two more issues with gridstack in IE8 with jQueryUI resizable (it seems it doesn't work) and
droppable. If you have any suggestions about support of IE8 you are welcome here: https://github.com/troolee/gridstack.js/issues/76
## Nested grids
Gridstack may be nested. All nested grids have an additional class `grid-stack-nested` which is assigned automatically
during initialization.
See example: [Nested grid demo](http://troolee.github.io/gridstack.js/demo/nested.html)
Changes
=======
#### v0.2.3 (2015-06-23)
- gridstack-extra.css
- add support of lodash.js
- add `is_area_empty` method
- nested grids
- add `batch_update`/`commit` methods
- add `update` method
- allow to override `resizable`/`draggable` options
- add `disable`/`enable` methods
- add `get_cell_from_pixel` (thanks to @juchi)
- AMD support
- fix nodes sorting
- improved touch devices support
- add `always_show_resize_handle` option
- minor fixes and improvements
#### v0.2.2 (2014-12-23)
- fix grid initialization
- add `cell_height`/`cell_width` API methods
- fix boolean attributes (issue #31)
#### v0.2.1 (2014-12-09)
- add widgets locking (issue #19)
- add `will_it_fit` API method
- fix auto-positioning (issue #20)
- add animation (thanks to @ishields)
- fix `y` coordinate calculation when dragging (issue #18)
- fix `remove_widget` (issue #16)
- minor fixes
#### v0.2.0 (2014-11-30)
- add `height` option
- auto-generate css rules (widgets `height` and `top`)
- add `GridStackUI.Utils.sort` utility function
- add `remove_all` API method
- add `resize` and `move` API methods
- add `resizable` and `movable` API methods
- add `data-gs-no-move` attribute
- add `float` option
- fix default css rule for inner content
- minor fixes
#### v0.1.0 (2014-11-18)
Very first version.
License
=======
The MIT License (MIT)
Copyright (c) 2014-2015 Pavel Reznikov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.