When a Kendo grid cell is open for editing, what is the best way to close the cell (and move to the next cell) with the right arrow key?
Take a look on the following snippet. It is a simple way for doing what you want:
// Bind any keyup interaction on the grid
$("#grid").on("keyup", "input", function(e)
{
// Right arrow keyCode
if (e.keyCode == 39)
{
// Ends current field edition.
// Kendo docs says that editCell method:
// "Switches the specified table cell in edit mode"
// but that doesn't happens and the current cell keeps on edit mode.
var td = $(e.target)
.trigger("blur");
// Find next field
td = td.closest("td").next();
// If no cell was found, look for the next row
if (td.length == 0)
{
td = $(e.target).closest("tr").next().find("td:first");
}
// As ways happens on kendo, a little (ugly)workaround
// for calling editCell, because calling without
// the timer doesn't seem to work.
window.setTimeout(function()
{
grid.editCell(td);
}, 1);
}
});
I don't know why but I could not save a Fiddle for that, I got 500 Internal error. Anyway it seems to achieve what you need. The grid needs to be in edit mode incell.
Related
I'm using kendo-ui with angularJS 1.5 and I have a simple kendo-grid bound to a datasource with transport configured using functions as follows:
private buildDataSource() {
this.dataSource = new kendo.data.DataSource({
autoSync: true,
change: this.dataSourceChangeHandler.bind(this),
error: this.dataSourceErrorHandler.bind(this),
transport: {
read: this.dataSourceRead.bind(this),
create: this.dataSourceCreate.bind(this),
update: this.dataSourceUpdate.bind(this),
destroy: this.dataSourceDestroy.bind(this)
},
[...]
});
}
private dataSourceUpdate(e: kendo.data.DataSourceTransportUpdate) {
var updatedItem: KendoCosto = e.data;
[...]
e.success(updatedItem, undefined, undefined);
}
The grid options looks like this:
this.gridOptions = {
dataSource: this.dataSource,
change: this.gridChangeHandler.bind(this),
editable: {
mode: "incell",
confirmation: false
},
navigatable: true,
selectable: "multiple, cell",
allowCopy: true,
toolbar: [
"create"
],
[...]
The grid works fine and the read, create, update, destroy behave as expected.
My problem is that whenever I change a value in a grid's cell and hit enter, I would like to have keyboard navigation "placeholder" (the grid has navigatable: true) to remain on the edited cell, but it happens to be moved to the upper left corner cell.
This behavior happens only when dataSource's autoSync is set to true.
I've also tried to "set" the current cell via the ".current" method of the grid's api but it doesn't seem to work:
// this is bound to the grid's change event and it is supposed to
// store the currently selected cell in a property of the class
// that builds both the datasource and the grid
private gridChangeHandler(e: kendo.ui.GridNavigateEvent)
{
this.thisGrid = this.thisGrid || e.sender;
this.currentCell = e.sender.current();
}
// Then on the change event of the datasource I do
private dataSourceChangeHandler(event: kendo.data.DataSourceChangeEvent)
{
if (this.currentCell && this.thisGrid) {
this.thisGrid.select(this.currentCell);
this.currentCell = undefined;
}
}
any suggestions ?
Thanks in advance !
--- edit ---
The code I posted/pasted in the comment is absolutely unreadable so I'm repeating the code here:
To have your solution work, I had to modify my dataBound handler this way.
private gridDataBoundHandler(e: kendo.ui.GridDataBoundEvent) {
if (this.thisGrid && this.currentCell) {
setTimeout((() => {
// this.thisGrid.editCell(this.currentCell);
this.thisGrid.current(this.currentCell);
}).bind(this)
, 10);
}
}
without the timeout, the navigation placeholde was still resetting back to the upper left corner.
First, I think the grid change event is the wrong event to attach to as it only fires when the user selects a row/cell with the mouse...it will not fire on tab events.
So, I would use the grid save event, which fires after you make an edit and "commit" the change through enter, tab, mouse off, etc.
Second, the e.sender.current() includes the current identifying information like "grid_active_cell" and "k-state-focused" and "k-dirty-cell", etc. By the time you get to the dataSource change event, the cell has actually lost all that decoration and your this.currentCell is essentially pointing at a non-existent selector. So, you need to grab a more "permanent" identifier.
So, using the grid save event:
save: function (e) {
var row = $(e.sender.current()).closest("tr");
var colIdx = $("td", row).index(e.sender.current());
var model = e.sender.dataItem(row);
currentCell = "tr[data-uid='" + model.uid + "'] td:eq(" + colIdx + ")";
}
And then in the grid DATABOUND event(as the dataSource change event is still followed by events that change the cell focus to the top-left, but grid.dataBound is further in the chain and seems to work better):
dataBound: function (e) {
if (currentCell) {
grid.editCell(currentCell);
grid.current(currentCell);
}
}
Demo(with variable changes as I do not have your whole class, based on a kendo grid demo): http://dojo.telerik.com/#Stephen/OjAsU
Note that this solution(not my implementation, but your technique in general) will break tabbing from cell to cell, i.e. tabbing will commit the edit but the dataSource change event will always put the focus back on the just-edited cell instead of moving to the tabbed-to cell. This breaks user expectation of what tab does. So, you should consider trying to capture the enter key press only instead of relying on the grid events(which fire regardless of tab or enter).
By Default when we enter a value inside a cell in Handsontable and the press Enter key or go to another cell or other part of the page, the value we have already entered into the cell will be committed automatically (after validation).
But I have a new requirement now. I want to manually commit the changes form outside of Handsontable (e.g. with calling a JavaScript function).
The real story is that I have rendered dropdown control inside some cells in Handsontable. When the user enters a number in a cell without pressing Enter key; and then clicks on the dropdown control in another cell; I do not have access to their new entered value.
I am going to commit their former changes when they click on the dropdown.
Any Idea?
Update:
I created a jsFiddle and did my best to keep it as simple as possible. http://jsfiddle.net/mortezasoft/3c2mN/3/
If you change the Maserati word to something else and without pressing Enter choose an option in dropdown, you can still see the name Maserati is shown as an alert dialog.
<div id="example"></div>
var data = [
["", "Maserati"],
["", ""],
];
$('#example').handsontable({
data: data,
minSpareRows: 1,
colHeaders: true,
contextMenu: true,
cells: function (row, col, prop) {
var cellProperties = {};
if (col===0 && row===0) {
cellProperties.renderer = selectBoxRenderer;
cellProperties.readOnly =true;
}
return cellProperties;
}
});
function selectBoxRenderer(instance, td, row, col, prop, value, cellProperties) {
var $select = $("<select><option></option> <option>Show the name</option></select>");
var $td = $(td);
$select.on('mousedown', function (event) {
event.stopPropagation(); //prevent selection quirk
});
$td.empty().append($select);
$select.change(function () {
//Default value is Maserati but we are gonna change it.
alert($('#example').handsontable('getData')[0][1]);
});
}
You can add instance.destroyEditor() to the mousedown handler on $select. This will commit the changes on first click, but will also require another click to open the select menu.
$select.on('mousedown', function (event) {
event.stopPropagation(); //prevent selection quirk
instance.destroyEditor();
});
The reason behind second click problem is that instance.destroyEditor() re-renders the table, which causes the original select element to be destroyed, so the click event cannot take effect.
To solve this, add
if ($td.find('select').length!=0) return;
at the beginning of the renderer. This way existing select elements will not be overwritten when re-rendering.
I have a RadGrid in with all rows in EditForm mode. This Radgrid has virtual scrolling. I need to jump (scroll) to a specific row.
I've tried several options. To put a row in select is not applicable in this case. I now have tried:
RadScriptManager.RegisterStartupScript(Page, typeof(RadGrid), "myScript", "scrollItemToTop('" + e.Item.ClientID + "');", true);
in the ItemDataBound, but the :
function scrollItemToTop(itemID) {
$('.rgVragenPanel').scrollTo(0, $telerik.$($get(itemID)).offset().top);
}
does not seem to work.
Any thoughts on how to best tackle this?
try this Scrolling to the Selected Item
I select the item in the code behind in the databound event.
Set one of the items in the control as selected.
Provide a handler for the client-side GridCreated event.
In the event handler, locate the selected row using the GridTableView object's get_selectedItems() method.
Use the RadGrid object's GridDataDiv property to access the DOM element for the scrollable region of the grid.
Use the DOM element for the row to check if it is visible in the scrollable region. If it is not, set the scrollTop property of the scrollable region to scroll the grid so that the selected row is showing.
The following example demonstrates this technique:
CopyJavaScript
<script type="text/javascript">
function GridCreated(sender, eventArgs) {
//gets the main table scrollArea HTLM element
var scrollArea = document.getElementById(sender.get_element().id + "_GridData");
var row = sender.get_masterTableView().get_selectedItems()[0];
//if the position of the selected row is below the viewable grid area
if (row) {
if ((row.get_element().offsetTop - scrollArea.scrollTop) + row.get_element().offsetHeight + 20 > scrollArea.offsetHeight) {
//scroll down to selected row
scrollArea.scrollTop = scrollArea.scrollTop + ((row.get_element().offsetTop - scrollArea.scrollTop) +
row.get_element().offsetHeight - scrollArea.offsetHeight) + row.get_element().offsetHeight;
}
//if the position of the the selected row is above the viewable grid area
else if ((row.get_element().offsetTop - scrollArea.scrollTop) < 0) {
//scroll the selected row to the top
scrollArea.scrollTop = row.get_element().offsetTop;
}
}
}
Notice : The function does not work on page postbacks. you should triger directly from javascript (i notice that the ongridcreated event of the grid is not fired on the Telerik example).
So a better way is to handle the scrolling with JQuery like this :
1) Create a function for a specific grid
2) At the telerik code replace the sender with var sender = $find("<%= RadGrid1.ClientID%>");
3) $(window).load(function () {
thefunctiontoscrollthegrid();});
I am building a website using slickgrid and I have these two problems:
I want to select the entire column whenever the user clicks on the column header. I have been able to change the style of the cells as given in this example. I have not been able to figure out how to change the style of the column header
How to get to know when the end of scroll has happened in slickgrid. I am currently doing
$(".slick-viewport").scroll(function () {
if ($(this)[0].scrollHeight - $(this).scrollTop() <= $(this).outerHeight()) {
handle_end_of_scroll()
}
})
But I am dependent on the css class name of the slick grid body and I might have issues if I end up updating slickgrid later to a newer version. I might have to update this part of the code if the implementation of slickgrid changes.
Change the style of a header
You could force an update to a header which would trigger a onHeaderCellRendered event in which you could then change the class on the header. Pretty messy, though.
grid.onHeaderCellRendered.subscribe(function (e, args) {
var headerCell = args.node;
});
grid.updateColumnHeader('columnID');
Check if scrolled to end
Binding to scroll events directly is always bad. You should subscribe the the onViewportChanged event and getViewport method to check if you have reached the end.
grid.onViewportChanged.subscribe(function () {
var lastRow = grid.getViewport().bottom;
if (lastRow >= grid.getDataLength() - 1) {
console.log('at bottom');
}
});
I'm using inline editing in my grid , I have some cases which i want to change the value of a cell inside a column. I'm changing it with setCell ,and it works good. my problem is that after the change the cell losts it's edit mode while all other cells of the row are in edit mode. I want to keep the cell in edit mode after i changed it.
for now what i did is saved the row and then selected it again and made in in edit mode - but i don't think it is a good solution - Is there a way to keep in edit mode while changin it?
Thank's In Advance.
If you need to implement the behavior of dependency cells which are all in the editing mode you have to modify the cell contain manually with respect of jQuery.html function for example. If the name of the column which you want to modify has the name "description", and you use 'blur' event on another "code" column then you can do about the following
editoptions: {
dataEvents: [
{
type: 'blur',
fn: function(e) {
var newCodeValue = $(e.target).val();
// get the information from any source about the
// description of based on the new code value
// and construct full new HTML contain of the "description"
// cell. It should include "<input>", "<select>" or
// some another input elements. Let us you save the result
// in the variable descriptionEditHtml then you can use
// populate descriptionEditHtml in the "description" edit cell
if ($(e.target).is('.FormElement')) {
// form editing
var form = $(e.target).closest('form.FormGrid');
$("#description.FormElement",form[0]).html(descriptionEditHtml);
} else {
// inline editing
var row = $(e.target).closest('tr.jqgrow');
var rowId = row.attr('id');
$("#"+rowId+"_description",row[0]).html(descriptionEditHtml);
}
}
}
]
}
The code will work for both inline and form editing.
The working example of dependent <select> elements you can find here.
blur does not fire if value is changed and enter is pressed immediately without moving to other cell. So better is to use
editrules = new
{
custom = true,
custom_func = function( val, col ) { ... }
},
and move this code from blur to custom_func as described in
jqgrid: how send and receive row data keeping edit mode