Develop Reference

add a new empty line in ui-grid

I'm trying to add a new empty line in ui-grid. I've tried looking in different tuto and example, but all that I found didn't reply to my spec, and I wasn't able to adapt it to what I'm looking for.
In fact I'm looking how to add a new empty line in an existing ui-grid neither using a button outside the grid nor a button in the rowfooter.
I'm looking to add a abutton in the grid like the + button shown in the screen shot below
or may be render automatically a new empty line when the rendering the ui-grid and a new one when all rows were filled.
I tried doing that using function in cell template but it's not working.
any help is really appreciated

The first option sounds like more of a CSS issue to me. Essentially, the add button would use some sort of font library containing a +, and you would need to position it in the corner of the grid. Perhaps looking at the grid footer would be a starting place. It sounds like you've seen the basics of creating an add row button here: http://ui-grid.info/docs/#/tutorial/112_swapping_data
The second option (render automatically a new empty line when the rendering the ui-grid and a new one when all rows were filled) requires a JavaScript approach.
The basic logic I followed is:
(Assume) Some data loads from somewhere in a backend (in this sample, it's a simulated load returning a promise as $http or $resource would).
After that data is loaded, we append a new row. We wait for the data first; otherwise we'd not be pushing the new row to the correct location.
Upon completion of the edit action, we set a timeout to ensure subsequent edits on other cells do not keep firing a new row. If the timeout is reached, we append a new row. If a subsequent edit action occurs, and a timeout promise exists (for adding a new row), we cancel it. Once no edit actions occur, and the timeout is reached, we push the new row.
To ensure that we are only taking action when our "extra row" is modified, when we create a row, a reference is maintained to the current row such that we can evaluate whether or not a received event is of interest (var newRowTimeoutPromise).
The core logic in code is below, with a sample implementation in Plnkr:
var extraRow = null,
addNewTimeoutMillis = 2000,
newRowTimeoutPromise = null;
loadData().then(function(data) {
$scope.gridOpts.data = data;
}).finally(function() {
// add initial empty row, and set our reference to it
extraRow = addEmptyRow($scope.gridOpts.data);
})
$scope.gridOpts = {
showGridFooter: true,
onRegisterApi: function(gridApi) {
$scope.gridApi = gridApi;
// listen for cell edit completion
gridApi.edit.on.afterCellEdit($scope, function(rowEntity, colDef, newValue, oldValue) {
// test if the edited row was the "extra row"
// otherwise, and edit to any row would fire a new row
// Set a timeout so we don't create a new row if the user has
// not finished their edit(s) on other fields
newRowTimeoutPromise = $timeout(function() {
if (rowEntity == extraRow) {
// add a new empty row, and set our reference to it
extraRow = addEmptyRow($scope.gridOpts.data);
newRowTimeoutPromise = null;
}
}, addNewTimeoutMillis);
})
// Listen for cell edit start, and cancel if we have a pending new
// row add. Otherwise, each time you finish the edit on a cell,
// this will fire.
gridApi.edit.on.beginCellEdit($scope, function(rowEntity, colDef, newValue, oldValue) {
if (newRowTimeoutPromise != null) {
$timeout.cancel(newRowTimeoutPromise);
}
})
}
};
http://plnkr.co/edit/IMisQEHlaZDCmCSpmnMZ?p=preview

I used jQuery to fetch and change style of specific cell elements of the cell template.
Here is a helpful Fiddle
Here is the controller script : -
var app = angular.module('app', ['ngTouch', 'ui.grid']);
app.controller('MainCtrl', ['$scope',
function($scope) {
$scope.gridOptions = {};
$scope.Add = function() {
$scope.gridOptions.data.push( { firstName: ' ',lastName:'',company:'' });
$(".ui-grid-coluiGrid").prevObject["0"].activeElement.style.display="none";
$(".ui-grid-cell")[$scope.gridOptions.data.length-2].style.display="inline";
};
$scope.gridOptions.onRegisterApi = registerGridApi;
function registerGridApi(gridApi) {
$scope.gridApi= gridApi
};
$scope.gridOptions.columnDefs = [{
name: 'firstName',
field: 'firstName',
}, {
name: 'lastNamer',
field: 'firstName'
}, {
name: 'ShowScope',
cellTemplate: '<button id="btb" ng-click="grid.appScope.Add()">+</button>'
}];
$scope.gridOptions.data = [{ yourdata}];
}
]);
To make it work properly 2 more things have to be done
Use cellContentEditable to make the rows editable
In order to disable display style of cell template button that appears on cells corresponding to rows of already existing data,you could use angular foreach or a for loop to iterate through these rows and disable style(I tried using renderContainers but it always returns the length of rendered rows outside Add functions as 0).

I have a working plunker over here.
http://plnkr.co/edit/Vnn4K5DcCdiercc22Vry?p=preview
In columnDefs, I have defined a separate column for add:
{
name: 'add',
displayName: '',
enableCellEdit: false,
enableColumnMenu: false,
width: '3%',
cellTemplate: '<div class="ui-grid-cell-contents" ng-click="grid.appScope.addRow()"><span ng-click="grid.appScope.addRow()">Add</span></div>'
}
And
$scope.addRow= function(){
var newlist = {"remarks":'',"testName":''};
$scope.gridOptions.data.push(newlist);
}
Update: A second plunker with bootstrap icons for add/remove
http://plnkr.co/edit/FjsA2r?p=preview

Cannot update Editable grid in Azure portal extension

I'm developing an Azure portal extension that includes an editable grid blade.
The grid's blade is opened from a selector and therefore contains a parameter provider.
The grid is initialized with the edit scope of the parameter provider, which is an observable array, and enabled for row editing and inserting new rows.
When I try to update the grid, changes to existing rows are not shown and creating new line yields an empty line, like below:
I don't see any errors in the console while debugging.
Here's how I initialized the grid:
private _initialize(container: MsPortalFx.ViewModels.PartContainerContract): void {
var extensions: number = MsPortalFx.ViewModels.Controls.Lists.Grid.Extensions.EditableRow | MsPortalFx.ViewModels.Controls.Lists.Grid.Extensions.ContextMenuShortcut,
extensionsOptions: MsPortalFx.ViewModels.Controls.Lists.Grid.ExtensionsOptions<DataModels.IItem, DataModels.ISelectionItem>,
viewModel: MsPortalFx.ViewModels.Controls.Lists.Grid.ViewModel<DataModels.IItem, DataModels.ISelectionItem>;
// Set up the editable extension options.
extensionsOptions = this._createExtensionsOptions();
// Create the grid view model.
viewModel = new MsPortalFx.ViewModels.Controls.Lists.Grid.ViewModel<DataModels.IItem, DataModels.ISelectionItem>(
container,
null,
extensions,
extensionsOptions);
viewModel.showHeader = true;
viewModel.columns(this._columns);
viewModel.rowAdd = () => {
// code that extension authors need to execute when a row is added should go here.
};
this.editableGrid = viewModel;
}
private _createExtensionsOptions(): MsPortalFx.ViewModels.Controls.Lists.Grid.ExtensionsOptions<DataModels.IItem, DataModels.ISelectionItem> {
return <MsPortalFx.ViewModels.Controls.Lists.Grid.ExtensionsOptions<DataModels.IItem, DataModels.ISelectionItem>>{
editableRow: {
// Supplies editable items to the grid.
editScope: this.parameterProvider.editScope,
// put the new row at the top.
placement: MsPortalFx.ViewModels.Controls.Lists.Grid.EditableRowPlacement.Bottom,
// Create no more than 5 new rows.
maxBufferedRows: 5,
// Allow the modification of existing items.
allowEditExistingItems: true,
// Allow the creation of new items.
allowEditCreatedItems: true,
// Track the valid status
valid: ko.observable<boolean>()
}
};
}
I've reviewed several sample blades of editable grid but couldn't identify what am I doing wrong.

The problem was that I didn't set the editScopeMetadataType property of the parameter provider, which required for determining the edit scope's entity type:
this.parameterProvider = new MsPortalFx.ViewModels.ParameterProvider<DataModels.IItem[], KnockoutObservableArray<DataModels.SchemaItem>>(container, {
// This was missing.
editScopeMetadataType: wrapperTypeMetadataName,
mapIncomingDataForEditScope: (incoming) => {
return ko.observableArray(incoming);
},
mapOutgoingDataForCollector: (outgoing) => {
return outgoing();
}
});

How to prevent Row selection on custom elements click in UI-GRID

I'm facing a problem in using UI-GRId with row selection and custom cell elements:
The sample plunker is here : http://plnkr.co/edit/Ed6s6CGFGXyUzj2cyx2g?p=preview
$scope.gridOptions = { showGridFooter:true,enableRowSelection: true, enableRowHeaderSelection: false };
$scope.gridOptions.columnDefs = [
{ name: 'id' },
{ name: 'name'},
{ name: 'age', displayName: 'Age (not focusable)', allowCellFocus : false },
{ name: 'address.city' },
{ name:'address.pin',cellTemplate:'<select><option value="122002">122002</option><option value="122001">122001</option></select>'}];
You can see that on row click, the respective row gets selected, while if you tend to select the dropdown options implicitly the row selection event also gets fired, I want that on elements click like dropdown here the row selection event should not be triggered.
Pls guide.

Interesting question, haven't run into it yet, but I am sure it's only time before I do. I've created a plunk to demonstrate my solution.
Basically, what I have do is registered a watcher, as mentioned by AranS. From there, we have two objects to work with: the row, and the event that occured. Since the event object discloses which element was selected (clicked), we can identify if it was a DIV, or something else. In the event of the change in the select list, the value of evt.srcElement.tagName is 'SELECT'.
http://plnkr.co/edit/k2XhHr2QaD1sA5y2hcFd?p=preview
$scope.gridOptions.onRegisterApi = function( gridApi ) {
$scope.gridApi = gridApi;
gridApi.selection.on.rowSelectionChanged($scope,function(row,evt){
if (evt)
row.isSelected = (evt.srcElement.tagName === 'DIV');
});
};

ui-grid's API allows controlling row selection. Look at this answer from another thread: https://stackoverflow.com/a/33788459/5954939. Basically you can use the event rowSelectionChanged or the isRowSelectable. Let me know if you need an example.

How do I use the Yahoo YUI to do inline cell editing that writes to a database?

So I have datatable setup using the YUI 2.0. And for one of my column definitions, I've set it up so when you click on a cell, a set of radio button options pops so you can modify that cell content.
I want whatever changes are made to be reflected in the database. So I subscribe to a radioClickEvent. Here is my code for that:
Ex.myDataTable.subscribe("radioClickEvent", function(oArgs){
// hold the change for now
YAHOO.util.Event.preventDefault(oArgs.event);
// block the user from doing anything
this.disable();
// Read all we need
var elCheckbox = oArgs.target,
newValue = elCheckbox.checked,
record = this.getRecord(elCheckbox),
column = this.getColumn(elCheckbox),
oldValue = record.getData(column.key),
recordIndex = this.getRecordIndex(record),
session_code = record.getData(\'session_code\');
alert(newValue);
// check against server
YAHOO.util.Connect.asyncRequest(
"GET",
"inlineeddit.php?sesscode=session_code&",
{
success:function(o) {
alert("good");
var r = YAHOO.lang.JSON.parse(o.responseText);
if (r.replyCode == 200) {
// If Ok, do the change
var data = record.getData();
data[column.key] = newValue;
this.updateRow(recordIndex,data);
} else {
alert(r.replyText);
}
// unblock the interface
this.undisable();
},
failure:function(o) {
alert("bad");
//alert(o.statusText);
this.undisable();
},
scope:this
}
);
});
Ex.myDataTable.subscribe("cellClickEvent", Ex.myDataTable.onEventShowCellEditor);
But when I run my code and I click on a cell and I click a radio button, nothing happens ever. I've been looking at this for some time and I have no idea what I'm doing wrong. I know you can also use asyncsubmitter within my column definition I believe and I tried that, but that also wasn't working for me.
Any ideas would be greatly appreciated.

ExtJS Change Event Listener failing to fire

I was asked to post this as a question on StackOverflow by http://twitter.com/jonathanjulian which was then retweeted by several other people. I already have an ugly solution, but am posting the original problem as requested.
So here's the back story. We have a massive database application that uses ExtJS exclusively for the client side view. We are using a GridPanel (Ext.grid.GridPanel) for the row view loaded from a remote store.
In each of our interfaces, we also have a FormPanel (Ext.form.FormPanel) displaying a form that allows a user to create or edit records from the GridPanel. The GridPanel columns are bound to the FormPanel form elements so that when a record is selected in the GridPanel, all of the values are populated in the form.
On each form, we have an input field for the table row ID (Primary Key) that is defined as such:
var editFormFields = [
{
fieldLabel: 'ID',
id: 'id_field',
name: 'id',
width: 100,
readOnly: true, // the user cannot change the ID, ever.
monitorValid: true
} /* other fields removed */
];
So, that is all fine and good. This works on all of our applications. When building a new interface, a requirement was made that we needed to use a third-party file storage API that provides an interface in the form of a small webpage that is loaded in an IFrame.
I placed the IFrame code inside of the html parameter of the FormPanel:
var editForm = new Ext.form.FormPanel({
html: '<div style="width:400px;"><iframe id="upload_iframe" src="no_upload.html" width="98%" height="300"></iframe></div>',
/* bunch of other parameters stripped for brevity */
});
So, whenever a user selects a record, I need to change the src attribute of the IFrame to the API URL of the service we are using. Something along the lines of http://uploadsite.com/upload?appname=whatever&id={$id_of_record_selected}
I initially went in to the id field (pasted above) and added a change listener.
var editFormFields = [
{
fieldLabel: 'ID',
id: 'id_field',
name: 'id',
width: 100,
readOnly: true, // the user cannot change the ID, ever.
monitorValid: true,
listeners: {
change: function(f,new_val) {
alert(new_val);
}
}
} /* other fields removed */
];
Nice and simple, except that it only worked when the user was focused on that form element. The rest of the time it failed to fire at all.
Frustrated that I was past a deadline and just needed it to work, I quickly implemented a decaying poller that checks the value. It's a horrible, ugly hack. But it works as expected.
I will paste my ugly dirty hack in an answer to this question.

"The GridPanel columns are bound to
the FormPanel form elements so that
when a record is selected in the
GridPanel, all of the values are
populated in the form."
As I understand it from the quote above, the rowclick event is what actually triggers the change to your form in the first place. To avoid polling, this could be the place to listen, and eventually raise to your custom change event.

Here is the ugly hack that I did to accomplish this problem:
var current_id_value = '';
var check_changes = function(offset) {
offset = offset || 100;
var id_value = document.getElementById('id_field').value || '';
if ( id_value && ( id_value != current_id_value ) ) {
current_id_value = id_value;
change_iframe(id_value);
} else {
offset = offset + 50;
if ( offset > 2500 ) {
offset = 2500;
}
setTimeout(function() { check_changes(offset); }, offset);
}
};
var change_iframe = function(id_value) {
if ( id_value ) {
document.getElementById('upload_iframe').src = 'http://api/upload.php?id=' + id_value;
} else {
document.getElementById('upload_iframe').src = 'no_upload.html';
}
setTimeout(function() { check_changes(100); }, 1500);
};
It's not pretty, but it works. All of the bosses are happy.

If you took a moment to read the source, you would see that the Ext.form.Field class only fires that change event in the onBlur function