@page "/reportdesigner" @using DevExpress.DataAccess.Json; @using EnvelopeGenerator.ReceiverUI.Services; @code { Dictionary DataSources = new Dictionary(); protected override async Task OnInitializedAsync() { await base.OnInitializedAsync(); var connection = CustomDataSourceWizardJsonDataConnectionStorage.GetDefaultConnection(); JsonDataSource jsonDataSource = new JsonDataSource(); jsonDataSource.JsonSource = connection.GetJsonSource(); await jsonDataSource.FillAsync(); DataSources.Add("Northwind", jsonDataSource); } }