UriJsonSource Class

Associates a JsonDataSource object with JSON data retrieved from a web service endpoint or a text file.

Namespace: DevExpress.DataAccess.Json

Assembly: DevExpress.DataAccess.v19.1.dll

Declaration

C#

public class UriJsonSource :
    JsonSourceBase

VB.NET

Public Class UriJsonSource
    Inherits JsonSourceBase

Remarks

The following example demonstrates how to associate the JsonDataSource object with data from a web-service endpoint.

C#

using DevExpress.DataAccess.Json;
using DevExpress.XtraReports.UI;
// ...
public static JsonDataSource CreateDataSourceFromWeb() {
    var jsonDataSource = new JsonDataSource();
    // Specify the data source location
    jsonDataSource.JsonSource = new UriJsonSource(new Uri("http://northwind.servicestack.net/customers.json"));
    // Retrieve data from the JSON data source to the Report Designer's Field List
    jsonDataSource.Fill();
    return jsonDataSource;
}

VB.NET

Imports DevExpress.DataAccess.Json
Imports DevExpress.XtraReports.UI
' ...
Public Shared Function CreateDataSourceFromWeb() As JsonDataSource
    Dim jsonDataSource = New JsonDataSource()
    ' Specify the data source location
    jsonDataSource.JsonSource = New UriJsonSource(New Uri("http://northwind.servicestack.net/customers.json"))
    ' Retrieve data from the JSON data source to the Report Designer's Field List
    jsonDataSource.Fill()
    Return jsonDataSource
End Function

The following example demonstrates how to associate the JsonDataSource object with JSON data from a file.

C#

using DevExpress.DataAccess.Json;
using DevExpress.XtraReports.UI;
// ...
public static JsonDataSource CreateDataSourceFromFile() {
    var jsonDataSource = new JsonDataSource();
    // Specify the a JSON file's name
    Uri fileUri = new Uri("customers.json", UriKind.RelativeOrAbsolute);
    jsonDataSource.JsonSource = new UriJsonSource(fileUri);
    // Retrieve data from the JSON data source to the Report Designer's Field List
    jsonDataSource.Fill();
    return jsonDataSource;
}

VB.NET

Imports DevExpress.DataAccess.Json
Imports DevExpress.XtraReports.UI
' ...
Public Shared Function CreateDataSourceFromFile() As JsonDataSource
    Dim jsonDataSource = New JsonDataSource()
    ' Specify the a JSON file's name
    Dim fileUri As New Uri("customers.json", UriKind.RelativeOrAbsolute)
    jsonDataSource.JsonSource = New UriJsonSource(fileUri)
    ' Retrieve data from the JSON data source to the Report Designer's Field List
    jsonDataSource.Fill()
    Return jsonDataSource
End Function

Inheritance

Object

JsonSourceBase

UriJsonSource