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

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the UriJsonSource class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

Create-a-Report-Bound-To-JsonDataSource/CS/Create-a-Report-Bound-to-JsonDataSource/Form1.cs#L54

var jsonDataSource = new JsonDataSource();
jsonDataSource.JsonSource = new UriJsonSource(new Uri("https://raw.githubusercontent.com/DevExpress-Examples/DataSources/master/JSON/customers.json"));
var root = new JsonSchemaNode();

how-to-create-a-federated-data-source-at-runtime/CS/FederationDataSourceExample/FederationDataSourceHelper.cs#L207

var jsonDataSource = new JsonDataSource();
jsonDataSource.JsonSource = new UriJsonSource(new Uri(urlString));
jsonDataSource.Fill();

VB.NET

Create-a-Report-Bound-To-JsonDataSource/VB/Create-a-Report-Bound-to-JsonDataSource/Form1.vb#L50

Dim jsonDataSource = New JsonDataSource()
jsonDataSource.JsonSource = New UriJsonSource(New Uri("https://raw.githubusercontent.com/DevExpress-Examples/DataSources/master/JSON/customers.json"))
Dim root = New JsonSchemaNode()

how-to-create-a-federated-data-source-at-runtime/VB/FederationDataSourceExample/FederationDataSourceHelper.vb#L157

Dim jsonDataSource = New JsonDataSource()
jsonDataSource.JsonSource = New UriJsonSource(New Uri(urlString))
jsonDataSource.Fill()

Inheritance

Object

JsonSourceBase

UriJsonSource