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Bind Selection to Model Field with Checkbox Column
Environment
| Product | Progress® Kendo UI® Grid for jQuery |
| Operating System | All |
| Browser | All |
| Browser Version | All |
Description
How can I select a row with a checkbox column that is bound to a model field in the Kendo UI Grid for jQuery?
Solution
Your project might require you to select a Kendo UI Grid row by using a checkbox which is bound to a field from the model.
After the user checks or unchecks the checkbox, an update request initiates and it updates the Boolean field in the model.
The following example demonstrates how SelectAll that is located in the header updates the Boolean field in all pages. This approach is suitable for scenarios with a limited number of records.
<style>
html { font-size: 14px; font-family: Arial, Helvetica, sans-serif; }
[role='gridcell']{
box-shadow: none!important;
}
</style>
<div id="example">
<div id="grid"></div>
</div>
<script>
$(document).ready(function () {
var crudServiceBaseUrl = "https://demos.telerik.com/kendo-ui/service",
dataSource = new kendo.data.DataSource({
autoSync: true,
transport: {
read: {
url: crudServiceBaseUrl + "/Products",
dataType: "jsonp"
},
update: {
url: crudServiceBaseUrl + "/Products/Update",
dataType: "jsonp"
},
destroy: {
url: crudServiceBaseUrl + "/Products/Destroy",
dataType: "jsonp"
},
create: {
url: crudServiceBaseUrl + "/Products/Create",
dataType: "jsonp"
},
parameterMap: function(options, operation) {
if (operation !== "read" && options.models) {
return {models: kendo.stringify(options.models)};
}
}
},
batch: true,
pageSize: 10,
schema: {
model: {
id: "ProductID",
fields: {
ProductID: { editable: false, nullable: true },
ProductName: { validation: { required: true } },
UnitPrice: { type: "number", validation: { required: true, min: 1} },
Discontinued: { type: "boolean", editable: true },
UnitsInStock: { type: "number", validation: { min: 0, required: true } }
}
}
}
});
$("#grid").kendoGrid({
dataSource: dataSource,
navigatable: true,
pageable: true,
columns: [
{ field: "Discontinued", width: 120, template: "<input type='checkbox' class='k-checkbox k-checkbox-md k-rounded-md' data-bind='checked:Discontinued' />", headerTemplate: "<input id='checkAll' type='checkbox' class='k-checkbox k-checkbox-md k-rounded-md' onclick='checkAll(this)'/>" },
"ProductName",
{ field: "UnitPrice", title: "Unit Price", format: "{0:c}", width: 120 },
{ field: "UnitsInStock", title: "Units In Stock", width: 120 },
{ command: "destroy", title: " ", width: 150 }],
dataBound: function(e){
e.sender.items().each(function(){
var dataItem = e.sender.dataItem(this);
kendo.bind(this, dataItem);
if(dataItem.Discontinued){
$(this).addClass("k-selected");
}
})
$("#checkAll")[0].checked = e.sender.items().find(":checked").length == e.sender.dataSource.view().length;
}
});
});
function checkAll(input){
var grid = $("#grid").data("kendoGrid");
var data = grid.dataSource.data();
data.forEach(function(dataItem){
if(dataItem.Discontinued != input.checked){
dataItem.Discontinued = input.checked;
dataItem.dirty = true;
}
})
grid.dataSource.sync();
}
</script>The following example demonstrates how SelectAll that is located in the header updates the Boolean field on the current page only. This approach is suitable for scenarios with a great number of records.
<style>
html { font-size: 14px; font-family: Arial, Helvetica, sans-serif; }
[role='gridcell']{
box-shadow: none!important;
}
</style>
<div id="example">
<div id="grid"></div>
</div>
<script>
$(document).ready(function () {
var crudServiceBaseUrl = "https://demos.telerik.com/kendo-ui/service",
dataSource = new kendo.data.DataSource({
autoSync: true,
transport: {
read: {
url: crudServiceBaseUrl + "/Products",
dataType: "jsonp"
},
update: {
url: crudServiceBaseUrl + "/Products/Update",
dataType: "jsonp"
},
destroy: {
url: crudServiceBaseUrl + "/Products/Destroy",
dataType: "jsonp"
},
create: {
url: crudServiceBaseUrl + "/Products/Create",
dataType: "jsonp"
},
parameterMap: function(options, operation) {
if (operation !== "read" && options.models) {
return {models: kendo.stringify(options.models)};
}
}
},
batch: true,
pageSize: 10,
schema: {
model: {
id: "ProductID",
fields: {
ProductID: { editable: false, nullable: true },
ProductName: { validation: { required: true } },
UnitPrice: { type: "number", validation: { required: true, min: 1} },
Discontinued: { type: "boolean", editable: true },
UnitsInStock: { type: "number", validation: { min: 0, required: true } }
}
}
}
});
$("#grid").kendoGrid({
dataSource: dataSource,
navigatable: true,
pageable: true,
columns: [
{ field: "Discontinued", width: 120, template: "<input type='checkbox' class='k-checkbox k-checkbox-md k-rounded-md' data-bind='checked:Discontinued' />", headerTemplate: "<input id='checkAll' type='checkbox' class='k-checkbox k-checkbox-md k-rounded-md' onclick='checkAll(this)'/>" },
"ProductName",
{ field: "UnitPrice", title: "Unit Price", format: "{0:c}", width: 120 },
{ field: "UnitsInStock", title: "Units In Stock", width: 120 },
{ command: "destroy", title: " ", width: 150 }],
dataBound: function(e){
e.sender.items().each(function(){
var dataItem = e.sender.dataItem(this);
kendo.bind(this, dataItem);
if(dataItem.Discontinued){
$(this).addClass("k-selected");
}
})
$("#checkAll")[0].checked = e.sender.items().find(":checked").length == e.sender.dataSource.view().length;
}
});
});
function checkAll(input){
var grid = $("#grid").data("kendoGrid");
var items = grid.items();
items.each(function(){
var dataItem = grid.dataItem(this);
if(dataItem.Discontinued != input.checked){
dataItem.Discontinued = input.checked;
dataItem.dirty = true;
}
})
grid.dataSource.sync();
}
</script>