beforeSend
Name | Type | Description |
---|---|---|
url |
The request URL. |
|
async |
Indicates whether the request is asynchronous or synchronous. |
|
method |
The request method ("GET", "POST", "PATCH", or "MERGE"). |
|
timeout |
The request timeout. |
|
params |
Additional request parameters. |
|
payload |
The request body; for example, when updating an item, this property holds an object with new values. |
|
headers |
The request headers. |
jQuery
var store = new DevExpress.data.ODataStore({ url: "https://js.devexpress.com/Demos/DevAV/odata/Products", beforeSend: function (e) { e.params = { "param1": "value1", "param2": "value2" }; e.headers = { "Custom Header": "value" }; } });
Angular
import ODataStore from "devextreme/data/odata/store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ url: "https://js.devexpress.com/Demos/DevAV/odata/Products", beforeSend: (e) => { e.params = { "param1": "value1", "param2": "value2" }; e.headers = { "Custom Header": "value" }; } }); }; }
deserializeDates
ODataStore can parse date-time values in ISO8601 format (for example, "2016-07-13T16:05:00.000Z"
) or Microsoft format (for instance, "/Date(1198908717056)/"
). In the first case, the store ignores the timezone modifier (usually Z
) when parsing the value. In the second case, the store adds the time-zone offset to the value according to the client's time-zone.
Disabling deserialization may cause filtering issues in widgets bound to the ODataStore. When deserialization is disabled in the store, date-time strings are converted to Date objects at the widget level. When filtering, the widget reverts an entered date-time value to a string based on the dateSerializationFormat option's value and passes the string to the ODataStore for further processing. OData does not support strings which cause filtering to fail.
To prevent these issues, the store's deserializeDates option should be set to true or set the widget's dateSerializationFormat option to null.
errorHandler
This function accepts a JavaScript Error object as the parameter.
jQuery
var store = new DevExpress.data.ODataStore({ // ... errorHandler: function (error) { console.log(error.message); } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ // ... errorHandler: function (error) { console.log(error.message); } }) } }
fieldTypes
Specifies the data field types. Accepts the following types: "String", "Int32", "Int64", "Boolean", "Single", "Decimal" and "Guid".
Set this option if you are going to filter data. An object assigned to it should list data fields and their types as field-value pairs. You can also use this option instead of the keyType to specify the key property's type.
jQuery
var store = new DevExpress.data.ODataStore({ url: "https://js.devexpress.com/Demos/DevAV/odata/Products", key: "Product_ID", fieldTypes: { Product_ID: "Guid", Product_Name: "String", Product_Price: "Int32" } });
Angular
import ODataStore from "devextreme/data/odata/store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ url: "https://js.devexpress.com/Demos/DevAV/odata/Products", key: "Product_ID", fieldTypes: { Product_ID: "Guid", Product_Name: "String", Product_Price: "Int32" } }); }; }
ASP.NET MVC Control
@(Html.DevExtreme().WidgetName() .DataSource(d => d.OData() .Url("https://js.devexpress.com/Demos/DevAV/odata/Products") .Key("Product_ID") .FieldTypes(new Dictionary<string, EdmType> { { "Product_ID", EdmType.Guid }, { "Product_Name", EdmType.String }, { "Product_Price", EdmType.Int32 } }) ) )
key
In the following example, the ProductID
and ProductCode
properties are specified as key properties:
jQuery
var store = new DevExpress.data.ODataStore({ // ... key: ["ProductID", "ProductCode"] });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ // ... key: ["ProductID", "ProductCode"] }) } }
keyType
Set this option if you do not need to filter data. Otherwise, use the fieldTypes option. In the following code, the Product_ID
and Product_Code
key properties are Guid
and Int32
, respectively:
jQuery
var store = new DevExpress.data.ODataStore({ url: "https://js.devexpress.com/Demos/DevAV/odata/Products", key: [ "Product_ID", "Product_Code" ], keyType: { Product_ID: "Guid", Product_Code: "Int32" } });
Angular
import ODataStore from "devextreme/data/odata/store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ url: "https://js.devexpress.com/Demos/DevAV/odata/Products", key: [ "Product_ID", "Product_Code" ], keyType: { Product_ID: "Guid", Product_Code: "Int32" } }); }; }
When specifying this option in an ASP.NET MVC Control, use the EdmType
enum that has the following values: Int32
, Int64
, Guid
, String
, Boolean
, Single
and Decimal
.
onInserted
jQuery
var store = new DevExpress.data.ODataStore({ onInserted: function (values, key) { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onInserted: function (values, key) { // Your code goes here } }) } }
onInserting
jQuery
var store = new DevExpress.data.ODataStore({ onInserting: function (values) { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onInserting: function (values) { // Your code goes here } }) } }
onLoaded
jQuery
var store = new DevExpress.data.ODataStore({ onLoaded: function (result) { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onLoaded: function (result) { // Your code goes here } }) } }
onModified
jQuery
var store = new DevExpress.data.ODataStore({ onModified: function () { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onModified: function () { // Your code goes here } }) } }
onModifying
jQuery
var store = new DevExpress.data.ODataStore({ onModifying: function () { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onModifying: function () { // Your code goes here } }) } }
onRemoved
jQuery
var store = new DevExpress.data.ODataStore({ onRemoved: function (key) { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onRemoved: function (key) { // Your code goes here } }) } }
onRemoving
jQuery
var store = new DevExpress.data.ODataStore({ onRemoving: function (key) { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onRemoving: function (key) { // Your code goes here } }) } }
onUpdated
jQuery
var store = new DevExpress.data.ODataStore({ onUpdated: function (key, values) { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onUpdated: function (key, values) { // Your code goes here } }) } }
onUpdating
jQuery
var store = new DevExpress.data.ODataStore({ onUpdating: function (key, values) { // Your code goes here } });
Angular
import ODataStore from "devextreme/data/odata_store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ onUpdating: function (key, values) { // Your code goes here } }) } }
url
jQuery
var store = new DevExpress.data.ODataStore({ // ... url: "https://js.devexpress.com/Demos/DevAV/odata/Products", });
Angular
import ODataStore from "devextreme/data/odata/store"; // ... export class AppComponent { store: ODataStore; constructor() { this.store = new ODataStore({ // ... url: "https://js.devexpress.com/Demos/DevAV/odata/Products" }); }; }
version
If the version is 2, the ODataContext uses the "MERGE" method to send requests; otherwise, it uses "PATCH". Set the method field of the beforeSend function's parameter to override this behavior.
withCredentials
Specifies whether to send cookies, authorization headers, and client certificates in a cross-origin request.
This option's value is passed to the underlying jqXHR object.
Use the beforeSend function to set custom authorization headers.
If you have technical questions, please create a support ticket in the DevExpress Support Center.