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Register Default Data Sources

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This document describes the capability to provide a Web Dashboard with a set of default data sources, which will be available for end-users.

WebDesigner_DefaultDataSources

To achieve this goal, create the required data sources at runtime. You can use the following data source types.

After you create the data sources, use the ASPxDashboard.SetDataSourceStorage or DashboardConfigurator.SetDataSourceStorage method (the selected method depends on the used server-side API) to register them in a data source storage.

Note that you can use a predefined implementation of the in-memory storage (DataSourceInMemoryStorage) or you can implement the IDataSourceStorage interface to provide custom data source storage.

The following code snippet shows how to create the in-memory storage of data sources for the Web Designer.

DashboardSqlDataSource sqlDataSource = new DashboardSqlDataSource("SQL Data Source", "sqlConnection");
SelectQuery countriesQuery = SelectQueryFluentBuilder
    .AddTable("Countries")
    .SelectColumns("Country", "Latitude", "Longitude", "Year", "EnergyType", "Production", "Import")
    .Build("Countries");
sqlDataSource.Queries.Add(countriesQuery);

DashboardOlapDataSource olapDataSource = new DashboardOlapDataSource("OLAP Data Source", "olapConnection");

DataSourceInMemoryStorage dataSourceStorage = new DataSourceInMemoryStorage();
dataSourceStorage.RegisterDataSource("sqlDataSource1", sqlDataSource.SaveToXml());
dataSourceStorage.RegisterDataSource("olapDataSource1", olapDataSource.SaveToXml());
ASPxDashboard1.SetDataSourceStorage(dataSourceStorage);
Important

The Web Dashboard saves user credentials used by data sources to the dashboard XML definition. Use the boolean DashboardConfigurator.PassCredentials property to specify whether to pass this information to the client side (web browser). Set this property to false and provide connection parameters in one of the following ways to avoid any security issues:

See Also