Questions on Kendo UI for jQuery Forum

0 answers

116 views

What are the practical limitations on the amount of data loaded into a Kendo Grid?

We are considering a grid where there will be 1000 records, 100+ columns and potentially 250 characters in each field.

All data would be loaded at once unless there is a simple way to do paging with 1000-record pages also using 'virtual' data and paging at the same time.

Grid

asked on 08 May 2012

2 answers

163 views

Using kendoAnimate()

Hi,

I want to animate a button on and off screen depending on which view is visible. Using jQuery.animate() is very slow and unusable on mobiles. I noticed the kendoAnimate() function.

Are there any docs about kendoAnimate? My button resides at the top left of the screen (bottom left in the android style) and needs to slide off the left of the screen and back.

How can I do this with kendoAnimate()?

Thanks
Gareth

General Discussions

answered on 08 May 2012

1 answer

473 views

DataSource - IsDirty Flag

Is there a way that I am missing that will easily tell me if a DataSource linked to an editable grid has any pending changes?

I am able to set my own flag on the edit and saveChanges events of the Grid, but can't seem to find an event that corresponds the the "Cancel changes" button on the grid. Also, just because someone puts the grid into an edit mode, doesn't mean they actually go through with making a change.

I am thinking that there should be something on the Datasource object, as this holds all the data, but can't fin anything and there are only two events associated with that control, so tracking my own flag there doesn't seem feasible either.

Regards,

John

Data Source

answered on 08 May 2012

0 answers

99 views

The display panel cuts off file names

When displaying selected files, the filename gets truncated even if the control has plenty of space to display it. This can be seen on the Web Demo page on the KendoUI site as well, just by selecting a file whose name is longer than 30 characters. Is there anyway to increase the amount of space available for displaying the selected filename?

Upload

asked on 08 May 2012

1 answer

141 views

Want to open a web site in tab - can I do this

We are looking for a HTML/CSS toolkit for our new application menu app. Essentially its a tree view that displays all the various web applications a specific user has rights to access. When the user clicks an item in the treeview, I want to open the app in a tabstrip tab. I have a Kendo UI tree view that is displaying the appropriate apps to choose from, and a tabstrip control I am trying to append a new tab which "hosts" the app.

I have tried (in the select event of the treeview)

tabStrip.append({
text: TabLabel
content: [null,"http://ourwebapp.aspx"],
encoded: false })

as well as

tabStrip.append({
text: TabLabel
contentURL: "http://ourwebapp.aspx"})

In each case the tab is created, with the correct text, but no content.

I looked at using AJAX to load the content, but the example URLs all seemed to point to a local html file.

Has anyone else had this problem, and found an answer? It seems like it should be a pretty straight forward task.

Thanks for you time and attention.
Richard

TabStrip

answered on 08 May 2012

4 answers

254 views

Drag handles

I have a TreeView (with draggable nodes) inside a draggable container to allow users to re-order not just elements within a certain hierarchy, but also to re-order the hierarchies themselves.

I've gotten this to work on PC's using jQuery UI + Kendo UI, but I'm trying to apply this same functionality to touch devices. The problem is that the draggable event for the container is fired when trying to drag just a draggable TreeView node. I'd tried playing with the filter to implement a drag handle to no avail.

// jQuery UI Sortable

$(".sortable").sortable({revert : true, handle : $(".cont-move", this), axis : "y"});

// Kendo UI Draggable

$(".kendo-tree").kendoTreeView({

template : "#=item.text#"

, checkboxTemplate : kendo.template($("#treeview-checkbox-template").html())

, dataSource : [

{id : 1, text : "Parent", expanded : true, items : [

{id : 2, text : "Child 1"}

, {id : 3, text : "Child 2"}

, {id : 4, text : "Child 3"}

, {id : 5, text : "Child 4"}

, {id : 6, text : "Child 5"}

]

}]

, dragAndDrop : true

, select : function(event) {

var $item = $(event.node);

}

});

cont-move div is the draggable handle (works in jQuery UI, not Kendo UI)

<ul class="sortable">

<li class="ui-state-default">

<div class="cont-chek"><input type="checkbox" /><div class="cont-move" style=

"width:24px;height:24px;background:transparent url('../../common/dhxcommon/imgs/arrow_nsew.png') no-repeat center;cursor:pointer;"

></div></div>

<div class="cont-qstn"><div class="kendo-tree"></div></div>

</li>

<li class="ui-state-default">

<div class="cont-chek"><input type="checkbox" /><div class="cont-move" style=

"width:24px;height:24px;background:transparent url('../../common/dhxcommon/imgs/arrow_nsew.png') no-repeat center;cursor:pointer;"

></div></div>

<div class="cont-qstn"><div class="kendo-tree"></div></div>

</li>

</ul>

jQuery UI does include a drag handle option, but I like the look (and coding) of the Kendo UI draggable better, plus Kendo works on mouse and touch devices. Are there any plans to allow for a drag handle option for kendoDraggables? Is there a workaround I can be using?

Drag and Drop

answered on 08 May 2012

3 answers

155 views

Splitter converting too many DIV as splitter

Hello, I'm using the splitter to display on top a Kendo Grid and in the bottom Google map. With resize event I found in this forum, I was able to resize the grid and map correctly. Still, I got 2 questions/comments:

1. To resize the GRID, I must set a timeout of 200 miliseconds because the RESIZE event of the splitter happens before the actual size is changed in the DOM (then, the height iscalculated with the olds value)

        resize: function () {
          setTimeout(function () {
            Application.Fire_ApplicationResize();
          }, 200);
        }

2. If you look at HTML.png, kendo splitter is creating 5 GHOST splitter (that you can see in capture.png). The last 4 splitter DIV are not mine and they are empty.
- Do you know why ?
- Is there a way to tell Kendo to only create SPLITTER from specified DIVs ? And not ALL those generated by Google (or something else) ?

This really comes from the Google map creation.

Thanks !

Splitter

answered on 08 May 2012

1 answer

77 views

How do I ensure data source has completed read before use

I have a grid that has a column that relies on a lookup from another data source for the column text given the ID value. The same lookup is used by a custom popup editor and works fine. The script issues a read in the data source at the start and then the grid gets initialized after the document is ready. The lookup fails because the data source has zero records. The lookup source has to retrieve over 400 items so I assume the problem is that the grid is trying the lookup before the data source has completed the read. Is there some means of ensuring the data source has completed the read? Or is my assumption incorrect and something else is happening here?

Data Source

answered on 08 May 2012

12 answers

395 views

knockout 2 inline foreach template ?

Hi,
i am evaluating Kendo and it looks fantastic, we use knockout, and i have noticed that kendo MVVM is almost the exact of knockout, but one thing i like about kockout is that you don't have to use java script block to define for-each templates, you just do it in the markup, so is this possible with kendo ?

thanks in advanced

MVVM

answered on 08 May 2012

2 answers

259 views

Sub Title

I would like to add a sub title to a chart with different font styles than the title. Is this possible? I did some research on SVG foreignObject and tspan tags but had no luck getting those to work.

Charts

answered on 08 May 2012