Is it possible to update a Morris chart dynamically? I know setData() will update the data, but I want to update the settings. Namely, the user being able to select if a bar chart is stacked or not.
I have tried:
bChart.stacked = true;
bChart.setData(response);
... because setData() will redraw. I also tried bChart.redraw();. There was no change.
Any ideas welcome.
You were 90% there. You would need to set bChart.options.stacked to true; then do bChart.redraw();.
Therefore, the code for toggling stacked bars is the following (if you are using jQuery):
jQuery(function($) {
$('#stacked').on('change', function() {
bChart.options.stacked = $(this).is(':checked');
bChart.redraw();
});
});
Providing that the checkbox toggling this option has a #stacked ID.
See this working JSFiddle.
Related
I need to get rid of only the arrow in the navigation bar in Xamarin forms. I tried in but I didn't get a proper solution. please help me overcome this issue. Thanks in advance.
!! I NEED TO REMOVE PERMANENTLY
solutions that I'm tried up to now :
Shell.SetBackButtonBehavior(this, new BackButtonBehavior
{
IsEnabled=false
});
but still, this didn't help me
There is a easy workaround to solve this.
You could override a Icon with a transparent png file(Follow is a transparent png):
and set enabled be false as follows:
Shell.SetBackButtonBehavior(this, new BackButtonBehavior
{
IconOverride = "transparent.png",
IsEnabled = false
}) ;
Then the effect as follows:
Note: You will see that we also can tap that area, therefore we need to set enabled be false.
Based on this official sample to test that.
You can set this using the Xamarin.Forms.NavigationPage class, from within a view's code behind file. E.g. within a ContentPage's constructor.
NavigationPage.SetHasBackButton(this, false);
I'm trying to build an interactive vega-lite dashboard where I have got this world map vega editor link
Based on the selection of a country I'm trying to display another graph below(vconcat or outside)
Is it possible to do it outside this chart without using vconcat or I can do it only by vconcat?
Has anyone tried something similar?
The easiest would be to create with vconcat.
That said, there is a way to read the underlying Vega signal of the selection. Then you can use the Vega View API to trigger callback that shows another chart based on the selected data.
You can now use observable notebooks to achieve what you want.
You create you first chart in a cell, link it to a second cell and then export the cells in your web site.
Here's how to start in observable
Here is the central part of the code
letter_selected = Generators.observe(
// selection_caught will (yield) a value promise with the selected letters
function initialize_f(change_) {
// creating an event listener (ie a function to attach to some DOM element)
const signaled = (name, value) => change_(value);
// attaching the event listener and naming it "test_selection"
barChart.addSignalListener("test_selection", signaled);
// check the doc ... https://github.com/observablehq/stdlib
change_(barChart.signal("test_selection"));
function dispose_f() {
return barChart.removeSignalListener("test_selection", signaled);
}
return dispose_f;
}
)
Here's my problem: in my application I have a Dojo EnhancedGrid, backed up by an ItemFileReadStore. The page flow looks like this:
The user selects a value from a selection list.
The item from the list is posted on a server and then the grid is updated with data from the server (don't ask why, this is how it's supposed to work)
The new item is highlighted in the grid.
Now, the first two steps work like a charm; however, the third step gave me some headaches. After the data is successfully POSTed to the server (via dojo.xhrPost() ) the following code runs:
myGrid.store.close();
myGrid._refresh();
myGrid.store.fetch({
onComplete : function(items) {
for ( var i = 0; i < items.length; i++) {
if (items[i].documentType[0].id == documentTypeId) {
var newItemIndex = myGrid.getItemIndex(items[i]);
exportMappingGrid.selection.deselectAll();
exportMappingGrid.selection.addToSelection(newItemIndex);
}
}
}
});
Now, the selection of the grid is updated (i.e. the selection object has a selectedIndex > 0), but visually there's no response, unless I hover the mouse over the "selected" row. If I remove the .deselectAll() line (which I suspected as the culprit) then I sometimes end up with two items selected at once, although the grid selectionMode attribute is set to single.
Any thoughts on this one?
Thanks a lot.
You need to use setSelected(), like so
exportMappingGrid.selection.setSelected(newItemIndex, true);
The second parameter is true to select the row, false to unselect it.
This is what works for me:
grid.selection.clear();
grid.selection.addToSelection(newItemIndex);
grid.selection.getFirstSelected();
Jon
can anyone please explain, with an example if possible, how to load dynamic content inside an iscroll div and assign a new height to it?
I can get it to work but I can't control the height of the scroll for the new content.
I'm new to all this and have no clue were to start.
here's what I'm working on:
http://homepage.mac.com/jjco/test/index7.html
when the page is loaded you see the scroll bar where there's no content...
clicking on print/damm (shows the height I originally set for this content)
clicking on print/fcbarcelona (maintains the same height and position of the scroll you used before) as you see it's not working as it should.
obviously, I don't want the scroll to be there when it's not necessary.
any help would be greatly appreciated.
It's better to use the refresh() method in iScroll, which will recalculate the height.
myScroll.refresh();
I had a similar problem, and just refresh() didn't help, so didn't help destroying and recreating iScroll. In my case I was loading a lot of elements into iScroll div. What did solve the problem is setTimeout(). As MASTERING THE REFRESH() METHOD said adding even 0ms to a setTimeout() would solve a lot of problems. In my case it was 500ms. =
here is code sample:
var myScroll;
function createIScroll(){
myScroll = new iScroll('wrapper');
}
function iScrollRefresh(){
setTimeout(function(){
myScroll.refresh();
}, 500);
}
$ajax(){
//receiving data
}
function someFunction(){
//dynamic content is created
iScrollRefresh();
}
My problem was that refresh() function was executed before content was inserted into DOM, so increasing timeout helped. I hope it helps to beginners like me.
try this, when you insert your new data into iScroll do these steps
//myScroll is a global variable you initialize iScroll on
myScroll.destroy();
myScroll = null;
loaded();//this is a functions where you have have your iScroll initializer
To watch height changes:
setInterval(function () {
var newScrollerHeight = $scroller.innerHeight();
if (newScrollerHeight !== prevScrollerHeight) {
prevScrollerHeight = newScrollerHeight;
myScroll.refresh();
}
}, 500);
Take a look at iScroll4
In iscroll.js, I see experimental option: checkDOMChanges: false,// Experimental You can enable and use it.
I'm new with Appcelerator and I encountered an annoying problem regarding layout.
I have to do a menu bar that is very easy to do with plain html (ul>li>a and that's all). The problem is that it seems that all button-related functions are not... customizable. I want buttons to be displayed as plain text, not buttons.
The first thought was to use labels (instead of buttons). But... Is this a right way? I need a menu bar, not a text paragraph! Besides that, the menu is somehow flexible, not like labels.
This is one (of many!) things i tried:
var menu_color = Titanium.UI.createButton({
title:Ti.Locale.getString("menu_color") || "Color",
height:24,
top:10
});
I also added borderWidth:0 (no effect) and backgroundColor:none/transparent with no luck.
Help? :)
I usually use views when I need to create what you described above.
For example:
I use a view with a vertical layout, then add my child views. The child views then have listeners for the click or whatever event.
This allows you to have more control over the formatting. A side effect of this is you will need to create your own "press" ui cue in some cases.
var demo = {win : Ti.UI.currentWindow};
(function(){
//Create the container view
demo.vwMain = Ti.UI.createView({height:100, layout:'vertical', backgroundColor:'yellow'});
demo.win.add(demo.vwMain);
demo.fakebutton1 = Ti.UI.createView({height:40, backgroundColor:'blue',left:25,right:25,borderRadius:5,borderColor:'#000'});
demo.vwMain.add(demo.fakebutton1);
demo.fakebutton2 = Ti.UI.createView({top:5,height:40, backgroundColor:'green',left:25,right:25,borderRadius:5,borderColor:'#000'});
demo.vwMain.add(demo.fakebutton2);
demo.fakebutton1.addEventListener('click', function(e) {
alert('Clicked fake button 1');
});
demo.fakebutton2.addEventListener('click', function(e) {
alert('Clicked fake button 2');
});
})();
create a view with layout property is set to vertical and add label or button which you want.View is like in HTML.Hope you understand.