I'm new using kendo grid UI, i'm trying to make a non editable column (when updating) using a simple code :
schema: {
id: 'ID',
fields: {
id: { editable: false }
}
}
This default schema, makes by default non editable id column, and i can't even create a new row with id .
I want to make it non editable (when updating) but i want the possibility to create a row and assign an id from user (when creating).
Any ideas ?
Edit :
PS : the proprety is not related to only id, it can be on every column (can't update but can create)
The editable required a function instead of a value.
columns: [
{ field: 'value', editable: function () { return false; } }
],
Checkout here:
https://dojo.telerik.com/oROJayAd
I always doubt about that model editable option. It never really worked for me. It should have something very deep in the setup to make it work which I never realized what it. So this is a way to acomplish what you need that I know it indeed works: To cancel the edit event. Check it out:
edit: function(e) {
// Cancels a new row
if (arguments, e.model.isNew()) {
this.cancelRow(e.container.parent());
}
else { // Cancels a cell editing
this.closeCell(e.container);
}
}
Demo
Now, if you like to add a condition in that event based on what you have set in your model, you can access it within event as well:
edit: function(e) {
let currentColumn = this.options.columns[e.container.index()].field,
model = this.dataSource.options.schema.model.fields[currentColumn];
if (model.editable === false) {
// Cancels a new row
if (arguments, e.model.isNew()) {
this.cancelRow(e.container.parent());
}
else { // Cancels a cell editing
this.closeCell(e.container);
}
}
}
Demo
You can add an option yourself in the model to set if the column can be updated or only created, and handle that information inside the event, canceling the editing whenever you like.
This is how I just did it, though there are other ways.
In columns option if you remove the field option from a column it doesn't know from where to bind it.
Then use the template option to show(bind) the id. Thus making it readonly
columns: [
{
title: 'Id', width: "40px",
template: "#= id #",
},
...]
Related
It looks like a simple task, but I already spent 4 hours to find a solution. How can I highlight the entire row by cell click?
On register api I have next
$scope.gridOptions.onRegisterApi = function(gridApi){
$scope.gridApi = gridApi;
gridApi.cellNav.on.navigate($scope,function(selected){
if('.ui-grid-cell-focus '){
console.log("fired class")
$(selected.row.entity).addClass('ui-grid-cell-focus')
}
console.log("fired cell")
$(selected.row.entity).addClass('ui-grid-cell-focus')
});
};
I see how click on cell is fired, but I cannot force to color the row and I don't want to select the row, because I use check box selection for this purpose, I just want to highlight the row by click on any cell in this row. Could somebody tell me where my mistake is?
Attached plunker
One way to accomplish what you want is to add a cellClass definition to your columnDefs. That function takes two params: grid and row.
$scope.gridOptions.columnDefs = [{
name: 'id',
width: '150',
cellTemplate: "",
cellClass: getCellClass
}, {
name: 'name',
width: '200',
cellClass: getCellClass
} ...
];
function getCellClass(grid, row) {
return row.uid === selectedRow ? 'highlight' : '';
}
On click you could set a variable to the uid of the row, and inside the cellClass function you can check if the uid of the current row matches the uid of the selected, if so, you can set the class to a class that properly reflects the background color of the selected row.
var selectedRow = null;
gridApi.cellNav.on.navigate($scope, function(selected) {
if ('.ui-grid-cell-focus ') {
selectedRow = selected.row.uid;
gridApi.core.notifyDataChange(uiGridConstants.dataChange.COLUMN);
}
});
Here's a link to your updated plunker: http://plnkr.co/edit/AgpAI2cmdqgNsSLVNjYA?p=preview
If you don't like the cellClass approach you could define custom cellTemplates and similarly react to a property you set on the row entity.
I want an auto increment column in my Kendo Grid. This field isn't server side auto increment, because I want the user to see the value and be able to change it.
My current solution is to add a click attribute to Create button and loop over rows to find the highest value and increment it.
But how can I insert this value inside the newly created row? Click event happens before the new row is created.
So there is two possible solution:
Have a variable as default value and update it in my JS code.
Access the newly created row somehow, and update the value.
This is my JS code:
function createClick(id) {
var grid = $("#" + id).data('kendoGrid');
var highestRadif = 0;
grid.tbody.find('>tr').each(function () {
var dataItem = grid.dataItem(this);
var radif = dataItem.SRadifReqR;
highestRadif = highestRadif < radif ? radif : highestRadif;
})
alert(++highestRadif);
}
You can use Grid's edit event to add your new generatedId value to new Grid's model.
This is some explanation from their documentation:
Edit
fired when the user edits or creates a data item.
e.container jQuery, jQuery object of the edit container element, which wraps the editing UI.
e.model kendo.data.Model, The data item which is going to be edited. Use its isNew method to check if the data item is new
(created) or not (edited).
e.sender kendo.ui.Grid, The widget instance which fired the event.
I suppose your click have something like this
//generate id code
vm.newId = ++highestRadif; // we need to store generated Id
grid.addRow();
then on edit event
edit: function(e) {
var model = e.model; // access edited/newly added model
// model is observable object, use set method to trigger change event
model.set("id", vm.newId);
}
Note: Your schema model's field must set property editable: true, due to enable us to change model field value using set method. Also if your field schema have validation required, you need to remove it.
model: {
id: "ProductID",
fields: {
ProductID: { editable: true, nullable: true },
}
}
Sample
I was able to put a function in the datasource schema for this.
schema: {
model: {
id: "id",
fields: {
currencyType: { defaultValue: getDefaultCurrency },
invoiceDate: { type: "date" }
}
}
}
function getDefaultCurrency() {
return _.find(vm.currencyTypes, { id: vm.currencyId });
};
I have a situation where I need to dynamically add or remove grids selection model.
Searching the documentation I see that the selection model doesn't have a destroy() method or anything similar. How can I remove or destroy a selection model from a grid in ext js 4.x.?
If this is not possible I still have an option to revert some functionallity and dynamically add the selection model to an already created grid. But I'm also not sure if this is possible.
I'd suggest to disable the selection model instead of destroying it.
You can clear the current selection (deselectAll) and lock the selection model to prevent further selection (setLocked):
selModel.deselectAll();
selModel.setLocked(true);
As you're using a checkbox selection model, you'll also need to hide the corresponding column which is added to the grid:
grid.headerCt.child('gridcolumn[isCheckerHd]').hide();
Selection models are not designed to be replaced, so... it's gonna be complicated!
You'd have to reproduce the initialization of the sel model, unwire the previous one, and rewire the new one...
Here's an example that works in substituting a row selection model for a checkbox model. It may still contains memory leaks from listeners registered by the first selection model that I would have forgot. The creation of the new selection model relies on the getSelectionModel method of the grid, which implements the disableSelection, simpleSelect, and multiSelect options of the grid (see the code).
Ext.widget('grid', {
renderTo: Ext.getBody()
,store: ['Foo', 'Bar', 'Baz']
,selType: 'checkboxmodel'
,columns: [{
dataIndex: 'field1'
,text: "Name"
}]
,listeners: {
selectionchange: function(sm, records) {
var grid = sm.view.up(),
item = grid.down('tbtext');
if (records.length) {
item.setText(
'Selection: ' + Ext.pluck(Ext.pluck(records, 'data'), 'field1').join(', ')
);
} else {
item.setText('No selection');
}
}
}
,tbar: [{
text: "Replace selection model"
,handler: function(button) {
var grid = button.up('grid'),
headerCt = grid.headerCt,
checkColumn = headerCt.down('[isCheckerHd]'),
view = grid.view,
previous = grid.selModel,
sm;
// try to clean up
previous.deselectAll();
previous.destroy();
// sel model doesn't clear the listeners it has installed in its
// destroy method... you'll have to chase the listeners that are
// installed by the specific type of sel model you're using
if (previous.onRowMouseDown) {
view.un('itemmousedown', previous.onRowMouseDown, previous);
}
if (previous.onRowClick) {
view.un('itemclick', previous.onRowClick, previous);
}
// clear references
delete grid.selModel;
delete view.selModel;
// create another selModel
grid.selType = 'rowmodel';
//grid.disableSelection = true;
sm = grid.getSelectionModel();
// assign new sel model
view.selModel = sm;
sm.view = view;
// remove checkbox model column
if (checkColumn) {
headerCt.remove(checkColumn);
}
// init sel model is trigerred in view render events, so we must do it
// now if the view is already rendered
if (view.rendered) {
sm.beforeViewRender(view);
sm.bindComponent(view);
}
// finally, refresh the view
view.refresh();
}
}]
// a place to display selection
,bbar: [{
xtype: 'tbtext'
,text: 'No selection'
}]
});
I've developed web applications with Dojo for more than one year, and I've used dojox grid a lot, but there is no way to add customize buttons on DataGrid or EnhancedGrid, as I know that ExtJS, or EasyUI, jQuery jqgrid are capable doing this.
So I want to ask if there is any way that can add buttons or other HTML DOM in the dojox.DataGrid?
at least, you can add dojo.form.Button's to it. simly add an element to the structure-property of your DataGrid like that (sorry, due to no-time i just copy pasted it from an actual project of mine...):
{
name: ' ',
field: 'idx',
type: dojox.grid.cells._Widget,
editable: false,
formatter: function (idx) {
return new dijit.form.Button({
_destroyOnRemove: true,
label: 'Bearbeiten',
onClick: function () {
dojo.byId('clickedItemIdx').value = idx + '';
if (reports.entries[idx].type == 'Rufbereitschaft') {
dojo.byId('addOrEditEntry_OCD_btn').click();
} else {
dojo.byId('addOrEditEntry_ASS_btn').click();
}
}
});
}
},
note that my data contains an idx-field which i commit to the onclick-function in order to know which element was clicked. This is the only way i got this to work.
As you may know, you can add multiple of those structure-elements referring to the same field.
I currently have a rather big Grid and am successfully using the RowExpander plugin to display complementary informations on certain rows. My problem is that it's not all rows that contain the aforementioned complementary informations and I do not wish the RowExpander to be active nor to show it's "+" icon if a particular data store's entry is empty. I tried using the conventional "renderer" property on the RowExpander object, but it did not work.
So basically, how can you have the RowExpander's icon and double click shown and activated only if a certain data store's field != ""?
Thanks in advance! =)
EDIT: I found a solution
As e-zinc stated it, part of the solution (for me at least) was to provide a custom renderer that would check my conditional field. Here is my RowExpander:
this.rowExpander = new Ext.ux.grid.RowExpander({
tpl: ...
renderer: function(v, p, record) {
if (record.get('listeRetourChaqueJour') != "") {
p.cellAttr = 'rowspan="2"';
return '<div class="x-grid3-row-expander"></div>';
} else {
p.id = '';
return ' ';
}
},
expandOnEnter: false,
expandOnDblClick: false
});
Now, the trick here is that for this particular Grid, I chose not to allow the expandOnEnter and expanOnDblClick since the RowExpander will sometimes not be rendered. Also, the CSS class of the grid cell that will hold the "+" icon is 'x-grid3-td-expander'. This is caused by the fact that the CSS class is automatically set to x-grid3-td-[id-of-column]. So, by setting the id to '' only when I'm not rendering the rowExpander, I'm also removing the gray background of the un-rendered cells. So, no double click, no enter, no icon, no gray-background. It really becomes as if there is strictly no RowExpander involved for the columns where my data store field is empty (when I want no RowExpander).
That did the trick for me. For someone that wishes to preserve the ID of the cell, or that wishes to keep the double click and enter events working, there is nothing else to do other than extending the class I guess. Hope this can help other people stuck in the position I was!
As e-zinc stated it, part of the solution (for me at least) was to provide a custom renderer that would check my conditional field. Here is my RowExpander:
this.rowExpander = new Ext.ux.grid.RowExpander({
tpl: ...
renderer: function(v, p, record) {
if (record.get('listeRetourChaqueJour') != "") {
p.cellAttr = 'rowspan="2"';
return '<div class="x-grid3-row-expander"></div>';
} else {
p.id = '';
return ' ';
}
},
expandOnEnter: false,
expandOnDblClick: false
});
Now, the trick here is that for this particular Grid, I chose not to allow the expandOnEnter and expandOnDblClick specifically since the RowExpander will sometimes not be rendered. Also, the CSS class of the grid cell that will hold the "+" icon is 'x-grid3-td-expander'. This is caused by the fact that the CSS class is automatically set to x-grid3-td-[id-of-column]. So, by setting the id to an empty string only when I'm not rendering the rowExpander, I'm also removing the gray background of the cells that won't offer any expanding. So, no double click, no enter, no icon, no gray-background. It really becomes as if there is strictly no RowExpander involved for the columns where my data store field is empty (when I want no RowExpander).
That did the trick for me. For someone that wishes to preserve the ID of the cell, or that wishes to keep the double click and enter events working, there is nothing else to do other than extending the RowExpander class in my opinion. Of course, one could also use Ext.override(), but then all instances of RowExpander would be hit by the override.
I have the same task, there is my solution
var rowExpander = new Ext.ux.grid.RowExpander({
renderer : function(v, p, record){
return record.get('relatedPageCount') > 0 ? '<div class="x-grid3-row-expander"> </div>' : ' ';
}
});
I have overridden render method which test relatedPageCount field in store and render + or white space.
I think I've found a cleaner solution.Give me a feedback pls :)
I extend the toggleRow method of RowExpander and if I match a condition avoid to toggle the row.Otherwise the standard flow continues
Ext.create('customplugins.grid.plugin.ClickRowExpander',{
pluginId : 'rowexpander',
rowBodyTpl : new Ext.XTemplate(
'<p><b>Last Modified By:</b> {usermodify}</p>',
'<p><b>User data:</b> {userdata}</p>',
'<p><b>Correlation ID:</b> {correlationid}</p>',
'<p><b>Description:</b> {descr}</p>'
),
toggleRow : function(rowIdx, record) {
if(record.get('directory')) return false;
customplugins.grid.plugin.ClickRowExpander.prototype.toggleRow.apply(this, arguments);
}
})
This version works in Ext JS 5 and 6 (classic)
One thing is to remove the +/- icon, which can be done via grid viewConfig:
getRowClass: function (record, rowIndex, rowParams, store) {
var yourFieldofChoice = record.get('yourFieldofChoice');
if (yourFieldofChoice == null) {
return 'hide-row-expander';
}
},
Define css for hide-row-expander:
.hide-row-expander .x-grid-row-expander {
visibility: hidden;
}
Now you disable expanding on enter key ('expandOnEnter' config is no longer supported in Ext JS 6) or double click by overriding toggleRow, or if you do not wish the override you create your custom rowexpander built on existing plugin:
Ext.define('RowExpander', {
extend: 'Ext.grid.plugin.RowExpander',
alias: 'plugin.myExpander',
init: function (grid) {
var me = this;
me.grid = grid;
me.callParent(arguments);
},
requiredFields: ['yourFieldofChoice'],
hasRequiredFields: function (rec) {
var valid = false;
Ext.each(this.requiredFields, function (field) {
if (!Ext.isEmpty(rec.get(field))) {
valid = true;
}
});
return valid;
},
toggleRow: function (rowIdx, record) {
var me = this, rec;
rec = Ext.isNumeric(rowIdx)? me.view.getStore().getAt(rowIdx) : me.view.getRecord(rowIdx);
if (me.hasRequiredFields(rec)) {
me.callParent(arguments);
}
}
});
I have handled the beforeexpand event inside the listeners of Ext.ux.grid.RowExpander. beforeexpand method got the whole row data injected. Checking the data conditionally we can return true or false. If we return false it wont expand otherwise it will do.
var expander = new Ext.ux.grid.RowExpander({
tpl: '<div class="ux-row-expander"></div>',
listeners: {
beforeexpand : function(expander, record, body, rowIndex){
var gpdata = record.data.GROUP_VALUES[1].COLUMN_VALUE
if(gpdata == null){
return false;
}
else{
return true;
}
}
}
});