Dashboard for ASP.NET Core - How to create new JSON data sources at runtime

February 13, 2026 · View on GitHub

You can provide end users with the capability to create a new data connection for a JSON Data Source at runtime.

Example Overview

Server

On the server side, implement the IDataSourceWizardConnectionStringsStorage interface to provide an end user with the capability to save the created JSON data connections. Use the created class instance as the ASPxDashboard.SetConnectionStringsProvider / DashboardConfigurator.SetConnectionStringsProvider method's parameter.

Client

To enable the capability for end users, set the allowCreateNewJsonConnection property to true:

PlatformAPI
HTML JavaScriptDataSourceWizardExtensionOptions.allowCreateNewJsonConnection
ASP.NET CoreDataSourceWizardOptionBuilder.AllowCreateNewJsonConnection(Boolean)
MVCDashboardExtensionSettings.AllowCreateNewJsonConnection
Web FormsASPxDashboard.AllowCreateNewJsonConnection

After that, the "Choose Connection (JSON)" page allows end users to create new data connections:

Can create new data connections

You can use our test JSON files to try this approach: DataSources.

Files to Review

Documentation

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