I am using a kendo multi select in power bi custom visual but it appears that only the first selection is sticking.
My code is below:
$("#myMultiSelect").kendoMultiSelect({
dataTextField: "value",
dataValueField: "identity",
dataSource: viewModel.categories,
change: function(e) {
var selectionDeffered = this.value().map(id => selectionManager.select(id, true));
if (this.value().length == 0)
{
selectionManager.clear()
}
}
});
A full gist with the kendo core is here:
https://gist.github.com/jcbowyer/5df55d4758a7614ca08d71eaf640fc57
Is there a simple way to achieve multi-select? I may be making an obvious mistake but the chiclet sample is very complex and uses a different method called selectionhandler. I am unclear how to user selection handler with kendo.
The issue was I was not clearing previous selection. The selection manager multiselect is working if one multi select is added. I have not been able to get the mutliselect to work if multiple multi selects are added.
This is the Kendo UI demo showing hierarchical data: http://demos.telerik.com/kendo-ui/grid/hierarchy
It seems to work very well, but the first row is expanded automatically. I tried hacking around with it in their dojo, but couldn't find a way to disable that behavior.
How do I prevent rows from being automatically expanded in Kendo UI Grid?
It's because there is used expandRow method in dataBound event to expand first row. Remove it.
var element = $("#grid").kendoGrid({
....
dataBound: function() {
this.expandRow(this.tbody.find("tr.k-master-row").first());
},
....
});
I am evaluating kendo ui right now to use in our big application. We have a situation where we have much values in dropdowns (like 200+) and there are more than 1 drop down with that size. So if we have a complex form. The Page Load takes time to render the form. (Due to that each box needs to be loaded from service and filled up).
We avoided this by writing our own asp.net web control with on demand support (like autoBind property) in the drop down list in kendo ui.
Now, DropDownList from KendoUI serves the purpose with autobind = false, BUT when setting value it fetches data from remote binding first and then selects appropriate value. (this is cool and really good for small lists) but Potentially this will mean that when we load the page and set the value it will issue remote binding calls for each of the drop downs.
Now,
Can we set value/ text to appear without issuing the remote binding. We want remote binding to be done ONLY when the user clicks on the drop down itself. (not when we are filling form). This will save extra calls to system and help quickly render the form to user.
Here is JS Bin
http://jsbin.com/ayivad/3/edit
If somebody from kendo ui would like me to help out - let me know, but this idea will allow us to use kendo ui drop downs with good use.
<input type="button" id="btnSet" value="Set Value (Click without clicking on DropDown" />
<br/><br/>
<select id="products"></select>
$(document).ready(function () {
$("#products").kendoDropDownList({
dataTextField: "ProductName",
dataValueField: "ProductID",
autoBind: false,
dataSource: {
transport: {
read: {
dataType: "jsonp",
url: "http://demos.kendoui.com/service/Products",
}
}
}
});
var combobox = $("#products").data("kendoDropDownList"),
setValue = function (e) {
if (e.type != "keypress" || kendo.keys.ENTER == e.keyCode)
combobox.value(3);
};
$("#btnSet").click(setValue);
});
Thanks,
Riz
1) Set text instead of value : http://docs.kendoui.com/api/web/dropdownlist#configuration-text
Kendo:
text String(default: "")
Define the text of the widget, when the autoBind is set to false.
Example
$("#dropdownlist").kendoDropDownList({
autoBind: false,
text: "Chai"
});
dirty alternative - Try to hijack ddl "optional label" for your needs. Load your data for the page inclusive of the value you want to show at the ddl, then initialize ddl's with optional values equal to the value you want to show. Once user opens the ddl, remote data will load, once data loaded you will ovewrite/remove the optional label and happy days.
http://docs.kendoui.com/api/web/dropdownlist#configuration-optionLabel
(Consider splitting the list, 200 long drop down us far from user friendly.)
$("#dropdownlist").kendoDropDownList({
optionLabel: "My value" });
Also consider using Kendo ComboBox, afterall auto complete after 3 chars or so sounds as quite sensible solution in case of your 200 items. We use same solution to 500 + combobox.
I have my data already in a nested unordered list. I am trying to add checkboxes to each node. This does not seem to work. Here is a small fiddle.
http://jsfiddle.net/ge3Qg/
$("#treeview2").kendoTreeView({
dataSource: items,
checkboxes: {
checkChildren: true
},
dataTextField: ["CategoryName", "ProductName"]
});
$("#treeview").kendoTreeView({
checkboxes: true
});
What am I missing?
Indeed, the checkboxes configuration option relies on client-side templates, which are not taken into account when the content has been rendered from the server. In more recent versions of Kendo (2012.Q3+), you can render the checkboxes in the list, and they will be aligned correctly. See the updated fiddle.
Is there a way to toggle the multiselect option of a grid?
Changing the multiselect parameter of the grid and calling for a reload has the side-effect of leaving the header behind when disabling or not creating the header column if multiselect was not TRUE upon the grid creation.
The closest I have come is setting multiselect to TRUE upon grid creation and using showCol and hideCol to toggle: $('#grid').showCol("cb").trigger('reloadGrid');
This has a side effect of changing the grid width when toggled. It appears the cb column width is reserved when it is not hidden.
Basically I'm attempting to create a grid with an "edit/cancel" button to toggle the multiselect -- very similar to how the iPhone/iPad handles deleting multiple mail or text messages.
Thank you in advance.
I full agree with Justin that jqGrid don't support toggling of multiselect parameter dynamically. So +1 to his answer in any way. I agree, that the simplest and the only supported way to toggle multiselect parameter will be connected with re-initialize (re-creating) the grid.
So if you need to change the value of multiselect parameter of jqGrid you need first change multiselect parameter with respect of respect setGridParam and then re-creating the grid with respect of GridUnload method for example. See the demo from the answer.
Nevertheless I find your question very interesting (+1 for you too). It's a little sport task at least to try to implement the behavior.
Some remarks for the understanding the complexity of the problem. During filling of the body of the grid jqGrid code calculate positions of the cells based on the value of multiselect parameter (see setting of gi value here and usage it later, here for example). So if you will hide the column 'cb', which hold the checkboxes, the cell position will be calculated wrong. The grid will be filled correctly only if either the column 'cb' not exists at all or if you have multiselect: true. So you have to set multiselect: true before paging or sorting of the grid if the column 'cb' exist in the grid. Even for hidden column 'cb' you have to set multiselect to true. On the other side you have to set multiselect to the value which corresponds the real behavior which you need directly after filling of the grid (for example in the loadComplete).
I hope I express me clear inspite of my bad English. To be sure that all understand me correctly I repeat the same one more time. If you want try to toggle multiselect dynamically you have to do the following steps:
create grid in any way with multiselect: true to have 'cb' column
set multiselect: false and hide 'cb' column in the loadComplete if you want to have single select behavior
set multiselect: true always before refreshing the grid: before paging, sorting, filtering, reloading and so on.
I created the demo which seems to work. It has the button which can be used to toggle multiselect parameter:
In the demo I used the trick with subclassing (overwriting of the original event handle) of reloadGrid event which I described the old answer.
The most important parts of the code from the demo you will find below:
var events, originalReloadGrid, $grid = $("#list"), multiselect = false,
enableMultiselect = function (isEnable) {
$(this).jqGrid('setGridParam', {multiselect: (isEnable ? true : false)});
};
$grid.jqGrid({
// ... some parameters
multiselect: true,
onPaging: function () {
enableMultiselect.call(this, true);
},
onSortCol: function () {
enableMultiselect.call(this, true);
},
loadComplete: function () {
if (!multiselect) {
$(this).jqGrid('hideCol', 'cb');
} else {
$(this).jqGrid('showCol', 'cb');
}
enableMultiselect.call(this, multiselect);
}
});
$grid.jqGrid('navGrid', '#pager', {add: false, edit: false, del: false}, {}, {}, {},
{multipleSearch: true, multipleGroup: true, closeOnEscape: true, showQuery: true, closeAfterSearch: true});
events = $grid.data("events"); // read all events bound to
// Verify that one reloadGrid event hanler is set. It should be set
if (events && events.reloadGrid && events.reloadGrid.length === 1) {
originalReloadGrid = events.reloadGrid[0].handler; // save old
$grid.unbind('reloadGrid');
$grid.bind('reloadGrid', function (e, opts) {
enableMultiselect.call(this, true);
originalReloadGrid.call(this, e, opts);
});
}
$("#multi").button().click(function () {
var $this = $(this);
multiselect = $this.is(":checked");
$this.button("option", "label", multiselect ?
"To use single select click here" :
"To use multiselect click here");
enableMultiselect.call($grid[0], true);
$grid.trigger("reloadGrid");
});
UPDATED: In case of usage jQuery in version 1.8 or higher one have to change the line events = $grid.data("events"); to events = $._data($grid[0], "events");. One can find the modified demo here.
I really like what you are trying to do here, and think it would be a great enhancement for jqGrid, but unfortunately this is not officially supported. In the jqGrid documentation under Documentation | Options | multiselect you can see the Can be changed? column for multiselect reads:
No. see HOWTO
It would be nice if there was a link or more information about that HOWTO. Anyway, this is probably why you are running into all of the weird behavior. You may be able to work around it if you try hard enough - if so, please consider posting your solution here.
Alternatively, perhaps you could re-initialize the grid in place and change it from/to a multi-select grid? Not an ideal solution because the user will have to wait longer for the grid to be set up, but this is probably the quickest solution.
A simpler answer:
<input type="button" value="Multiselect" onclick="toggle_multiselect()">
<script>
function toggle_multiselect()
{
if ($('#list1 .cbox:visible').length > 0)
{
$('#list1').jqGrid('hideCol', 'cb');
jQuery('.jqgrow').click(function(){ jQuery('#list1').jqGrid('resetSelection'); this.checked = true; });
}
else
{
$('#list1').jqGrid('showCol', 'cb');
jQuery('.jqgrow').unbind('click');
}
}
</script>
Where list1 is from <table id="list1"></table>.