JsonDataSource.Fill() Method

Populates the JsonDataSource object with JSON data.

Namespace: DevExpress.DataAccess.Json

Assembly: DevExpress.DataAccess.v20.2.dll

NuGet Packages: DevExpress.DataAccess, DevExpress.WindowsDesktop.DataAccess

Declaration

C#

public void Fill()

VB.NET

Public Sub Fill

Remarks

Use the Fill method to populate the JsonDataSource with data.

If you did not define the data source schema, the data source is populated with all data available from the source.

The JsonDataSourceException exception occurs if the Fill method failed to populate the data source. Catch this exception or handle the FillError event to ensure that the Fill method has completed successfully.

Example

The code sample below creates a JSON data source and populates it with data from the endpoint.

C#

using DevExpress.DataAccess.Json;
// ...
// Create a new JSON data source and populate it with data.
var jsonDataSource = new JsonDataSource();
jsonDataSource.JsonSource = new UriJsonSource() {
    Uri = new Uri(@"https://raw.githubusercontent.com/DevExpress-Examples/DataSources/master/JSON/customers.json")
};
jsonDataSource.Fill();

VB.NET

Imports DevExpress.DataAccess.Json
' ...
' Create a new JSON data source and populate it with data.
Private jsonDataSource = New JsonDataSource()
jsonDataSource.JsonSource = New UriJsonSource() With {.Uri = New Uri("https://raw.githubusercontent.com/DevExpress-Examples/DataSources/master/JSON/customers.json")}
jsonDataSource.Fill()

Related GitHub Examples

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

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#

winforms-dashboard-json-data-source/CS/DashboardJsonExample/Form1.cs#L52

jsonDataSource.RootElement = "Customers";
jsonDataSource.Fill();
return jsonDataSource;

Create-a-Report-Bound-To-JsonDataSource/CS/Form1.cs#L88

// Populate the data source with data.
jsonDataSource.Fill();
return jsonDataSource;

how-to-create-a-federated-data-source-at-runtime/CS/FederationDataSourceExample/FederationDataSourceHelper.cs#L208

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

jsondatasource-with-wpf-controls/CS/How-to-use-JsonDataSource-with-WPF-controls/MainWindow.xaml.cs#L30

jsonDataSource.JsonSource = new UriJsonSource(fileUri);
jsonDataSource.Fill();

how-to-create-data-access-library-data-sources-at-runtime-t424210/CS/JsonDataSourceSnippets/Code.cs#L16

    jsonDataSource.JsonSource = new DevExpress.DataAccess.Json.UriJsonSource(sourceUri);
    jsonDataSource.Fill();
}

VB.NET

Create-a-Report-Bound-To-JsonDataSource/VB/Form1.vb#L73

' Populate the data source with data.
jsonDataSource.Fill()
Return jsonDataSource

winforms-dashboard-json-data-source/VB/DashboardJsonExample/Form1.vb#L49

jsonDataSource.RootElement = "Customers"
jsonDataSource.Fill()
Return jsonDataSource

how-to-create-a-federated-data-source-at-runtime/VB/FederationDataSourceExample/FederationDataSourceHelper.vb#L158

jsonDataSource.JsonSource = New UriJsonSource(New Uri(urlString))
jsonDataSource.Fill()
Return jsonDataSource

jsondatasource-with-wpf-controls/VB/How-to-use-JsonDataSource-with-WPF-controls/MainWindow.xaml.vb#L19

jsonDataSource.JsonSource = New UriJsonSource(fileUri)
jsonDataSource.Fill()
Me.grid.ItemsSource = jsonDataSource

how-to-create-data-access-library-data-sources-at-runtime-t424210/VB/JsonDataSourceSnippets/Code.vb#L13

    jsonDataSource.JsonSource = New DevExpress.DataAccess.Json.UriJsonSource(sourceUri)
    jsonDataSource.Fill()
End Sub