Preserve Dirty Indicator in Incell Editing and Client Operations
Environment
| Product | Progress® Kendo UI® Grid for jQuery |
| Operating System | All |
| Browser | All |
| Browser Version | All |
Description
How can I preserve the dirty indicator in the incell editing mode of the Kendo UI Grid for jQueryss and during client operations?
Solution
Your project might require you to preserve the dirty indicator in incell editing and client operations.
The following example demonstrates how to achieve this behavior also in case new rows are added to the Grid.
The Kendo UI R3 2017 release provides the preservation of the dirty indicator as a built-in functionality.
<div id="grid"></div>
<script>
var crudServiceBaseUrl = "https://demos.telerik.com/kendo-ui/service",
dataSource = new kendo.data.DataSource({
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)};
}
}
},
change: function(e){
if(e.action == "itemchange"){
e.items[0].dirtyFields = e.items[0].dirtyFields || {};
e.items[0].dirtyFields[e.field] = true;
}
},
batch: true,
pageSize: 30,
schema: {
model: {
id: "ProductID",
fields: {
ProductID: { editable: false, nullable: true },
ProductName: { validation: { required: true } },
UnitPrice: { type: "number", validation: { required: true, min: 1, max: 10} },
Discontinued: { type: "boolean" },
UnitsInStock: { type: "number", validation: { min: 0, required: true } }
}
}
}
});
$("#grid").kendoGrid({
dataSource: dataSource,
sortable: true,
pageable: true,
navigatable: true,
height: 400,
toolbar: ["create", "save", "cancel"],
columns: [
{field: "ProductName", template: "#=dirtyField(data,'ProductName')# #:ProductName#"},
{ field: "UnitPrice", title:"Unit Price", format: "{0:c}", width: "150px",
template: "#=dirtyField(data,'UnitPrice')# #:kendo.toString(UnitPrice,'c')#"},
{ field: "UnitsInStock", title: "Units In Stock", width: 150, template: "#=dirtyField(data,'UnitsInStock')# #:UnitsInStock#" },
{ field: "Discontinued", width: 100, template: "#=dirtyField(data,'Discontinued')# #:Discontinued#" },
{ command: "destroy", title: " ", width: 110 }],
editable: true
});
function dirtyField(data, fieldName){
if(data.dirty && data.dirtyFields[fieldName]){
return "<span class='k-dirty'></span>"
}
else{
return "";
}
}
</script>