I am using ExtJs 4.1.0
I am having a buffered grid and I would like to enable local sorting on the this grid.
Is it possible to achieve this ? Currently when i use buffered grid then sorting is coming as disabled even though i have give the sortable config to the columns for which i want sorting enables.
Can we do local sorting/filtering in buffered grid ?
There is a new plugin in ExtjS grid "bufferedrenderer" that may fit your use case better than a buffered store. Local sorting and filtering work as usual, only the grid content is rendered dynamically on scroll. We are using this to display tens of thousands of rows.
http://www.sencha.com/forum/showthread.php?259314-Infinite-Grid-Filters-won-t-work&p=949486&viewfull=1#post949486
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I would like updates to the dstore appearing in the dgrid without having to call refresh.
do you know why the grid does not remove the old row?
my records has no id property but Ive setup the idProperty correctly.
My grid is expected to receive multiple updates and calling to refresh would probably have performance implications.
So if you can point a way to throttle refresh events it can also help.
Thanks,
Nimrod.
dgrid listens to change events if the store provides them. dstore's Trackable mixin adds change events to the store. Try mixing in Trackable to your store and you should see dgrid automatically render in response to any of the store's add/put/remove calls.
My problem is the next:
I have a table in which I store information, by clicking on a row there will be a window in which I show that information in a certain format.
The problem I have when I try to make the table responsive because when trying to see it on small devices I have to do side scroll. I tried to hide columns with "display: hidden" but the data I can not retrieve, beacuse it not exists.
How can i do this?
Do yourself a favor - do not reinvent the wheel and use a specialized library, for example Datatables. At the very least, take a look at how datatables makes the table responsive.
You have not mentioned it, so I assume you are ok using jQuery, Bootstrap 3 or 4, Semantic UI or Foundation. For React / Angular there maybe other options.
I'm using Dgrid with an Observable JsonRest store. The JsonRest store is queried for 50 rows at a time. Now I have a function where the user can 'quicksearch' the data and the search is processed on the serverside. This works, and in this case the server returns for example "Content-Range: 210-260/1500". It returns 50 rows of data but Dgrid renders the full grid at the beginning, so the user can't scroll 'up' for previous entries.
How can I make Dgrid behave like that?
Not entirely sure if I'm completely grasping your problem, but if I am, it may require some thinking outside the box or compromising to get what you want. I assume your UI is basically jumping to the first match rather than simply filtering the grid to only show matches.
If your UI is such that the grid is always present and the search is basically intended to scroll the grid, you can use grid.scrollTo({ y: valueInPixels }) to scroll the grid. While this accepts a pixel value (not rows), if your rows are consistent height, you can multiply by grid.rowHeight (which is a property set by OnDemandList) to get the correct offset.
Another option, though probably not what you want, would be to use the Pagination extension and navigate to a specific page.
Of course, if you would rather actually filter the grid to only display matching items, that's possible too (assuming your server behaves as dojo/store/JsonRest expects, anyway). The Using Grids and Stores tutorial has an example towards the end.
I have problem in DOJO with DataGrid. I refresh my grid on every 1 sec with this code
window.store_data_log= new dojo.data.ItemFileReadStore({data:{items:temp}});
var grid = dijit.byId("grid_log");
grid.setStore(window.store_data_log);
and it works fine ( put new data ). Problem is that when I have lot off rows and I scroll down, my grid refreshs and my scroll goes on top grid. How to solve this ?
Of course, you are totally clearing the store and resetting it every second from scratch. When you reset the store, you basically reset the grid. I would expect nothing less than the grid resetting the scroll position when you refresh its store.
You may want to learn how to properly use the store rather than just trying to reset it. I answered this here:
How to refresh datagrid
If you use dojo properly, you will get good results, but by just taking a shortcut and trying to refresh the store every second you are going to get an unusable grid.
You need to take a step back and solve your application architecture and not expect the grid refresh to be some kind of magic solution.
After going through (dojo) datagrid.js, I found how to resolve the issue:
//datastore you're using//
var store = new dojox.data.QueryReadStore({
//in the fetch()//
fetch: function (request){
//add the following://
request.isRender = false;
}
});
Important: Only set request.isRender to false when you don't want the grid to scroll back to the top. Just keep in mind that some situations (like sorting on a new column), it's probably best to set it to true. Just add some if/else statements to help with the logic.
In asp.net the DataGrid supports templates. You can provide your own template and have the grid fill the data in your template.
With Dojo Grid, it seems like I can't make my own template outside of the the rigid simplistic cell style grid that Dojo provides.
Does anyone know a way to use a custom template with Dojo Grid? Specifically, with Dojo you're forced to use a cell that corresponds to a data item. I'm looking to use a table as a template with any styling that I choose (rows,columns,rowspans,colspans, more than one data items in a single cell, etc).
Any clues please?
Thanks
Firstly, it sounds like everything you want is available by customizing the grid. You can do nesting of cells and even have things like Filtering Selects in rows. Unfortunately the docs on this are not awesome so it takes Googling and trial and error if you want very customized features.
Secondly, because of the OO nature of Dojo you can always use inheritance to create mixes of various widgets. Specifically the _templated class allows you to specify an HTML template for your widget, which themselves can included templated widgets.
If that sounds non-trivial, you're right, which is why I would suggest digging deeper into the Enhanced grid and probably open up the code before trying to write something yourself.
I can tell you that I struggled getting it working correctly, but I have hence been pleasantly surprised by features that I needed that I thought I would need to build myself but were built into the grid.