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Thread ID: |
Created: |
Updated: |
Platform: |
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| 144548 | May 11,2019 07:21 AM UTC | Jun 19,2019 08:48 AM UTC | JavaScript - EJ 2 | 7 |
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Tags: Grid |
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class CustomAdaptor extends UrlAdaptor {
beforeSend(dm: DataManager, request: XMLHttpRequest): void {
request.setRequestHeader("Authorization", "bearer");
}
processQuery(dm: DataManager, query: Query, hierarchyFilters?: Object[]): Object{
return {
// send query based on your service
};
}
}
this.data = new DataManager({
url: 'api/Orders/DataSource',
insertUrl: "api/Orders/Insert",
updateUrl: "api/Orders/Update",
removeUrl: "api/Orders/Delete",
adaptor: new CustomAdaptor
}); |
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var isEssential = true;
ej.grids.Grid.Inject(ej.grids.Page);
grid = new ej.grids.Grid({
dataSource: { result: [], count: 0 },
dataStateChange: function (args) { // dataStateChage event of Grid can triggered in every data change of Grid
getData(args.skip, args.take); // you can execute your service with page queries.
},
dataSourceChanged: function (args) {
getData(args); // in here you can execute your service while perform the CRUD actions.
},
allowPaging: true,
load: load,
columns: [
{ field: 'EmployeeID', headerText: 'EmployeeID', width: 160 },
{ field: 'CustomerID', headerText: 'CustomerID', width: 160 },
{ field: 'ShipCity', headerText: 'ShipCity', width: 160 }
],
height: "100%",
});
grid.appendTo('#Grid');
function load() {
if (isEssential) {
var obj = document.getElementById("Grid").ej2_instances[0];
var pageSize = obj.pageSettings.pageSize;
var currentPage = 0;
page = getData(pageSize, currentPage); // inital load need to generate skip and take query based on Grid pageSettings
}
}
function getData(skip, take) {
// skip and take queries handle the on-demand loading concept
// you can execute your service with skip and take queries
//once if you get a data from your service you can bind the json data into Grid as below way.
// please handle the CURD actions here
var grid = document.getElementsByClassName("e-grid")[0].ej2_instances[0];
grid.dataSource = { result :data, count: count }; // you need bind the data into grid in this way. Count specifies the total number of record. So you need to return your whole data count from server.
} |
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