My kendo chart is not updating - kendo-ui

I Have kendo chart and tree-view in my application.I want to to change the value axis dynamically on check-box checked event,example When we check the "KM" check-box in treeview then value axis for Km and data will be displaying in chart.
so I tried some code then my chart is not displaying.
My checked event code is
$("#treeview").on("change", function (e) {
var chart = $("#chart").data("kendoChart");
var checkedSeries = [];
$("#treeview").find(":checked").each(function() {
var nodeText = $(this).parent().parent().text();
$.each(valueAxes, function(index, valueAxes) {
if (valueAxes.field == nodeText) {
checkedSeries.push(valueAxes);
}
});
});
chart.options.valueAxes = checkedSeries;
chart.refresh();
});
What's wrong in my code please help me.
Here is my jsbin http://jsbin.com/eyibar/11/edit

First you need to assign the chart to a variable in on-change event event of tree view,without that the tree-view didn't recognize the chart and it's value axis and in your valueAxes code there is no property of field,so by name of the valueAxes you need to check the treeview node and then push the valueAxes.
$("#treview").on("change", function (e) {
var chart = $("#chart").data("kendoChart");
var checkedSeries = [];
if ($("#treeview").find(":checked").length !== 0) {
$("#treeview").find(":checked").each(function () {
var nodeText = $(this).parent().parent().text();
$.each(valueAxes, function (index, valueAxes) {
if (valueAxes.name == nodeText) {
checkedSeries.push(valueAxes);
checkedSeries.visible = true;
}
});
});
createChart(checkedSeries);
}
else {
createChart(checkedSeries);
}
});

Related

DC js charts, crossfilter not filtering on click

*Updated with more relevant code.
*Updated again: removing chart groupings results in this error: "Unable to get property 'classed' of undefined or null reference dc.js (5575,9)". I am using dc 3.0.11.
I have an issue where my dc charts are not filtering each other upon clicking a selection on a chart. It does work if I call a function to explicitly do so, but I would like to avoid that.
This is my general approach:
I do have dc.css included (if that matters)
my crossfilter ndx and dimensions are correct
I am defining my charts WITHOUT .on renderlet (is this the reason?)
var masterData = [];
$(document).ready(function () { //UPDATED CODE START
var siteurl = 'site';
var ItemCount= GetItemCount(siteurl, 'list');
createRestUrl(siteurl,ItemCount,'list');
}); // UPDATED CODE END
function GetItemCount(siteurl, ListName){
var ItemCount='';
$.ajax({
url: siteurl+"/_api/web/lists/GetByTitle('"+ListName+"')/ItemCount",
method: "GET",
async: false,
headers: { "Accept": "application/json; odata=verbose" },
success: function (data) {
ItemCount = data.d.ItemCount;
},
error: function (data) {
console.log(data);
}
});
return ItemCount;
} // GetItemCount END
function createRestUrl(siteurl, ItemCount, ListName) {
var listServiceUrl = siteurl+ "/_api/web/lists/GetByTitle('" + ListName + "')/Items";
//Rest call to process each items of list
$.when(processList(listServiceUrl,ItemCount)).done(function () {
console.log("FINISHED");
console.log("--------");
console.log(masterData);
var ndx = crossfilter(masterData),
clientMgr = ndx.dimension(function(d) { return d.clientMgr}),
otherTeammates = ndx.dimension(function(d) { return d.otherTeammates}),
topic = ndx.dimension(function(d) { return d.topic}),
status = ndx.dimension(function(d) { return d.status}),
team = ndx.dimension(function(d) { return d.team}),
requester = ndx.dimension(function(d) { return d.requester}),
requesterBusiness = ndx.dimension(function(d) { return d.requesterBusiness}),
submitted = ndx.dimension(function(d) { return d.submitted}),
clientMgrGroup = clientMgr.group(),
otherTeammatesGroup = otherTeammates.group(),
topicGroup = topic.group(),
statusGroup = status.group(),
teamGroup = team.group(),
requesterGroup = requester.group(),
requesterBusinessGroup = requesterBusiness.group(),
submittedGroup = submitted.group();
var teamChart = dc.rowChart("#team_chart", "team");
var clientMgrChart = dc.pieChart("#mgr_chart", "mgr");
var statusChart = dc.pieChart("#status_chart", "status");
var requesterChart = dc.rowChart("#requester_chart", "request");
var requesterBusinessChart = dc.pieChart("#requesterBusiness_chart", "requestBusiness");
var timeSelect = dc.lineChart("#time_chart", "time");
var topicChart = dc.pieChart("#topic_chart", "topic");
var teamNum = dc.numberDisplay("#teamNum", "teamNum");
Date.prototype.addDays = function(days) {
var dat = new Date(this.valueOf());
dat.setDate(dat.getDate() + days);
return dat;
}
var thisDay = new Date();
var todayMinSix = thisDay.addDays(-30);
var todayPlusSix = thisDay.addDays(30);
teamChart
.dimension(team)
.group(teamGroup)
.width(800)
.height(200)
.transitionDuration(3000)
.ordering(function(d) { return -d.value })
.elasticX(true)
.x(d3.scaleLinear().domain([0, 100]))
.colors('#58D3F7')
//teamNum
//.valueAccessor(function(d) { return d})
//.formatNumber(d3.format())
//.group(teamGroup)
clientMgrChart
.dimension(clientMgr)
.group(clientMgrGroup)
.width(300)
.height(300)
.transitionDuration(3000)
statusChart
.dimension(status)
.group(statusGroup)
.height(200)
.width(500)
.innerRadius(95)
.transitionDuration(3000)
.colors(d3.scaleOrdinal().domain(["02 - Work-In-Progress", "01 - Pending Initial Review"])
.range(['#58D3F7', '#2E9AFE']))
requesterChart
.dimension(requester)
.group(requesterGroup)
.height(200)
.width(800)
.gap(10)
.transitionDuration(3000)
.ordering(function(d) { return -d.value })
.elasticX(true)
.colors('#F78181')
.x(d3.scaleLinear().domain([0, 100]));
requesterBusinessChart
.dimension(requesterBusiness)
.group(requesterBusinessGroup)
.height(300)
.width(300)
.innerRadius(117)
.transitionDuration(3000)
.colors('#F78181')
topicChart
.dimension(topic)
.group(topicGroup)
.height(200)
.width(500)
.innerRadius(95)
.transitionDuration(3000)
.colors(d3.scaleOrdinal().domain(["New Report / Interface", "General Support", "One-Time Data Set", "Recurring Data Set", "Modify Existing Report / Interface", "Production Issue"])
.range(['#F5A9A9', '#F78181', '#FA5858', '#F6CECE', '#F8E0E0', "#FBEFEF"]))
timeSelect
.width(1700)
.height(150)
.dimension(submitted)
.group(submittedGroup)
.transitionDuration(1000)
.elasticY(true)
.renderArea(true)
.x(d3.scaleTime().domain([todayMinSix, thisDay]))
.xUnits(d3.timeDays)
.mouseZoomable(false)
.xAxis();
teamChart.render();
statusChart.render();
requesterChart.render();
topicChart.render();
});
}
//Step 3: Rest call to process each items of list
function processList(nextUrl,ItemCount) {
var dfd = new $.Deferred();
if (nextUrl == undefined) {
dfd.resolve();
return;
}
getJSONDataFromUrl(nextUrl).done(function (listItems) {
TotalItemCount = TotalItemCount+listItems.d.results.length;
console.log("getJSON called");
var items = listItems.d.results;
var next = listItems.d.__next;
$.when(processList(next,ItemCount)).done(function (){
dfd.resolve();
});
$.each(items, function(index, obj){
items = {};
items.clientMgr = obj.ClientMgr; //Assigned To - might not be the right field
items.otherTeammates = obj.OtherTeammatesEngaged; //Assigned To - might not be the right field
items.topic = obj.Topic;
items.status = obj.Status;
items.team = obj.Team;
items.requester = obj.RequesterLOB;
items.submitted = obj.Submitted;
items.requesterBusiness = obj.RequesterBusinessGroup;
console.log("looping through each");
var convert = new Date(items.submitted);
items.submittedConvert = moment(convert).format('L');
items.submitted = convert;
var assignName = items.clientMgr;
items.clientMgr = assignName;
masterData.push(items);
console.log(items.requesterBusiness);
console.log(items.status);
}); //.each END
}); // getJSONDataFromUrl END
return dfd.promise();
} // processList END
I had this working long ago, but as the project became more complex, something broke along the way.
I'm going to guess that the error refers to the use of .classed() a few lines up from 5575. Here are the lines leading up to 5575:
if (d3.sum(_chart.data(), _chart.cappedValueAccessor)) {
pieData = pie(_chart.data());
_g.classed(_emptyCssClass, false);
} else {
// otherwise we'd be getting NaNs, so override
// note: abuse others for its ignoring the value accessor
pieData = pie([{key: _emptyTitle, value: 1, others: [_emptyTitle]}]);
_g.classed(_emptyCssClass, true);
}
if (_g) {
https://github.com/dc-js/dc.js/blob/3.0.11/dc.js#L5565-L5575
So (except for the line number being a little off) it's a good guess that _g is null.
As I noted in my comment above, this probably indicates that the chart was redrawn before it was rendered. This can happen if you create a chart but don't render it. Rendering initializes things like the scale and parent elements like the <g> that holds the chart.
When you create a chart, you either specify a chart group or the default chart group is selected for you. The chart is registered in that group, and when any chart in the group is filtered, all the charts are redrawn.
In your code above, you render specific charts (4 of them), but there are many more charts which you initialize but don't render (8). In particular, all of the pie charts are rendered except for clientMgrChart. When you later click on a chart, it's likely that chart crashes when it tries to redraw.
It would be nice if dc.js implemented a more helpful error for this case since you currently have to guess "hmm, null, guess something hasn't been set up right" and know that render must happen before redraw.
Note: it's more robust to initialize the charts and then call
dc.renderAll();
instead of rendering each one manually.
Note to others: With dc.js 3.1.2, my individual rowCharts would not animate themselves when clicked. The other charts in the crossfilter did animate.
Very confused, traced all the way through the dc.js call stack and learned a lot.
Ultimately, root cause for the failure was not having dc.css linked in my page's HTML.
Another good 'tell' that you don't have dc.css properly linked is that the rowChart vertical lines do not render.
Screenshots
rowChart With CSS - Clicking any of the bars DOES trigger animation.
rowChart Without CSS - Clicking any of the bars does not trigger animation.

how to bind year and month dropdown in fullcalendar (jquery plugin)?

My requirement is to bind these two dropdown with fullcalendar and reflect the changes according.
I have already searched lot about binding the custom dropdown to the fullcalendar but not getting success yet!!
So any help is appreciated.
$(document).ready(function() {
var $months = $('#months');
var $calendar = $('#calendar');
$calendar.fullCalendar({
viewRender: function() {
buildMonthList();
}
});
$('#months').on('change', function() {
$calendar.fullCalendar('gotoDate', $(this).val());
});
buildMonthList();
function buildMonthList() {
$('#months').empty();
var month = $calendar.fullCalendar('getDate');
var initial = month.format('YYYY-MM');
month.add(-6, 'month');
for (var i = 0; i < 13; i++) {
var opt = document.createElement('option');
opt.value = month.format('YYYY-MM-01');
opt.text = month.format('MMM YYYY');
opt.selected = initial === month.format('YYYY-MM');
$months.append(opt);
month.add(1, 'month');
}
}
});
Please check this fiddle for month and year dropdown for fullcalendar.
https://jsfiddle.net/L6a5LL5b/

Kendo Grid always focus on first cell of Top Row

I have checkbox in Kendo grid. Once i click on Checkbox it always focus the top cell in Kendo Grid. Below is code for Kendo grid that I am binding to checkbox value on checkbox click event in Kendo Grid
$("#contactgrid").on('click', '.chkbx', function () {
var checked = $(this).is(':checked');
var grid = $('#contactgrid').data().kendoGrid;
var rowIdx = $("tr", grid.tbody).index(row);
var colIdx = $("td", row).index(this);
// grid.tbody.find("tr").eq(rowIndex).foucs(); This doesn't work
var dataItem = grid.dataItem($(this).closest('tr'));
dataItem.set('IsSelected', checked);
});
I can get the row index and cell Index in click event but I was not able to figure out to focus the specific cell.
Thanks!
When you want to edit Grid with checkbox then I would suggest you to use the approach from this code library. No matter it uses the MVC extensions open Views/Home/Index.cshtml and see how the template is defined and the javascript used after initializing the Grid.
Here it is
Column template:
columns.Template(#<text></text>).ClientTemplate("<input type='checkbox' #= IsAdmin ? checked='checked':'' # class='chkbx' />")
.HeaderTemplate("<input type='checkbox' id='masterCheckBox' onclick='checkAll(this)'/>").Width(200);
<script type="text/javascript">
$(function () {
$('#persons').on('click', '.chkbx', function () {
var checked = $(this).is(':checked');
var grid = $('#persons').data().kendoGrid;
var dataItem = grid.dataItem($(this).closest('tr'));
dataItem.set('IsAdmin', checked);
})
})
function checkAll(ele) {
var state = $(ele).is(':checked');
var grid = $('#persons').data().kendoGrid;
$.each(grid.dataSource.view(), function () {
if (this['IsAdmin'] != state)
this.dirty=true;
this['IsAdmin'] = state;
});
grid.refresh();
}
</script>
I struggled with this. I essential refocused the cell as shown below. There's plenty of room for improvement in the Kendo grid client-side API. Hopefully my helper methods below will help people out.
var $row = getRowForDataItem(this);
var $current = getCurrentCell($row);
var currentCellIndex = $row.find(">td").index($current);
this.set('PriceFromDateTime', resultFromDate);
$row = getRowForDataItem(this);
var grid = getContainingGrid($row);
//select the previously selected cell by it's index(offset) within the td tags
if (currentCellIndex >= 0) {
grid.current($row.find(">td").eq(currentCellIndex));
}
//Kendo grid helpers
function getColumn(grid, columnName) {
return $.grep(grid.columns, function (item) {
return item.field === columnName;
})[0];
}
function getRowForDataItem(dataItem) {
return $("tr[data-uid='" + dataItem.uid + "']");
}
function getCurrentCell($elem) {
return getContainingGrid($elem).current();
}
function getContainingDataItem($elem) {
return getDataItemForRow(getContainingRow($elem));
}
function getContainingCell($elem) {
return $elem.closest("td[role='gridcell']");
}
function getContainingRow($elem) {
return $elem.closest("tr[role='row']");
}
function getContainingGrid($elem) {
return $elem.closest("div[data-role='grid']").data("kendoGrid");
}
function getGridForDataItem(dataItem) {
return getContainingGrid(getRowForDataItem(dataItem));
}
function getDataItemForRow($row, $grid) {
if (!$grid) $grid = getContainingGrid($row);
return $grid.dataItem($row);
}
function getMasterRow($element) {
return $element.closest("tr.k-detail-row").prev();
}
function getChildGridForDataItem(dataItem) {
return getRowForDataItem(dataItem).next().find("div.k-grid").data("kendoGrid");
}
function getMasterRowDataItem($element) {
var $row = getMasterRow($element);
return getDataItemForRow($row);
}

How to Fix Poor Performance on Filter By Text

A while back I found some code that allows you to filter the contents of a SELECT by typing in a text element. It works well however, over time the performance degrades pretty badly. I'm not sure if it is the filter code or the way in which I am activating it.
The SELECT shows up in a modal dialog (bootstrap) so I have the following code:
$('#myModal').on('shown', function () {
$(".focusable").val("").focus();
var select = $('#myModal').find(".modal-body").find("select");
var text = $('#myModal').find(".modal-body").find("input[type='text']");
select.filterByText(text, true);
});
And here is the filter code:
jQuery.fn.filterByText = function (textbox, selectSingleMatch) {
return this.each(function () {
var select = this;
var options = [];
$(select).find('option').each(function () {
options.push({value:$(this).val(), text:$(this).text(), data:$(this).data("short-name")});
});
$(select).data('options', options);
$(textbox).bind('change keyup', function () {
var options = $(select).empty().data('options');
var search = $.trim($(this).val());
var regex = new RegExp(search, 'gi');
$.each(options, function (i) {
var option = options[i];
if (option.text.match(regex) !== null) {
var copyOption = $('<option>').text(option.text).val(option.value);
copyOption.data("short-name", option.data);
$(select).append(copyOption);
}
});
if (selectSingleMatch === true &&
$(select).children().length === 1) {
$(select).children().get(0).selected = true;
}
});
});
};
Can anyone shed some light on where my performance issue(s) might be and how to solve it?
reading through the comments I would suggest to add the following:
$(textbox).bind('change keyup', function(event) {
console.log(event);
// your code
});
Is the event triggered more than once on a single keyup after some times the dialog is shown?
$('#myModal').on('hidden', function () {
$('#myModal').find(".modal-body").find("input[type='text']").off("change keyup");
});

ajax add_endRequest never fires, on iPad only

I have some asp code in which I have a set of Telerik grids on separate jQueryUI tabs, and I am lazy-loading the grid data so that the grids only bind to live data if you actually view the tab that contains them. The rebind causes an ajax postback, and I have added an endRequest handler to re-apply the jQueryUI formatting once the request returns. This is working in Firefox, Chrome, Safari, and IE. But on the iPad the endRequest handler never fires. Any suggestions on how to troubleshoot this?
My code is as follows:
<script language="javascript" type="text/javascript">
(function ($, Sys) {
function setUpEmsDashboard() {
$('#emsDashboard').dnnTabs().dnnPanels();
$('#dInvoiceLink').click(function () {
lazyLoadOutstandingInvoicesGrid();
});
if ($('#dInvoice').is(':visible')) {
lazyLoadOutstandingInvoicesGrid();
}
$('#dCountsForStaffLink').click(function () {
lazyLoadCountsForStaffGrids();
});
if ($('#dCountsForStaff').is(':visible')) {
lazyLoadCountsForStaffGrids();
}
}
$(document).ready(function () {
setUpEmsDashboard();
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(function () {
setUpEmsDashboard();
});
});
} (jQuery, window.Sys));
</script>
<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
<script language="javascript" type="text/javascript">
function lazyLoadOutstandingInvoicesGrid() {
var grid = $find("<%=OutstandingInvoicesGrid.ClientID%>");
var masterTableView = grid.get_masterTableView();
var name = masterTableView.get_name();
if (name == 'Temp Data') {
masterTableView.rebind();
}
return true;
}
function lazyLoadCountsForStaffGrids() {
var countsBySalesRegionGrid = $find("<%=CountsBySalesRegionGrid.ClientID%>");
var cbsrMasterTableView = countsBySalesRegionGrid.get_masterTableView();
var cbsrName = cbsrMasterTableView.get_name();
if (cbsrName == 'Temp Data') {
cbsrMasterTableView.rebind();
return true;
}
var countsBySupplierTypeGrid = $find("<%=CountsBySupplierTypeGrid.ClientID%>");
var cbstMasterTableView = countsBySupplierTypeGrid.get_masterTableView();
var cbstName = cbstMasterTableView.get_name();
if (cbstName == 'Temp Data') {
cbstMasterTableView.rebind();
return true;
}
var countsByCategoryGrid = $find("<%=CountsByCategoryGrid.ClientID%>");
var cbcMasterTableView = countsByCategoryGrid.get_masterTableView();
var cbcName = cbcMasterTableView.get_name();
if (cbcName == 'Temp Data') {
cbcMasterTableView.rebind();
}
return true;
}
</script>
</telerik:RadCodeBlock>
Never mind, I found the issue. What I had was a race condition where for some browsers in some circumstances, the grid objects were null.
I changed:
function lazyLoadOutstandingInvoicesGrid() {
var grid = $find("<%=OutstandingInvoicesGrid.ClientID%>");
var masterTableView = grid.get_masterTableView();
var name = masterTableView.get_name();
if (name == 'Temp Data') {
masterTableView.rebind();
}
return true;
}
to:
function lazyLoadOutstandingInvoicesGrid() {
var grid = $find("<%=OutstandingInvoicesGrid.ClientID%>");
if (typeof (grid) !== 'undefined' && grid != null) {
var masterTableView = grid.get_masterTableView();
var name = masterTableView.get_name();
if (name == 'Temp Data') {
masterTableView.rebind();
}
return true;
}
}
...and made similar changes to the other function. That prevented the object reference error that had been silently causing the rest of the main function to fail. Now it works consistently.

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