/// <summary>
/// Gets the columns for datasource.
/// </summary>
/// <param name="dataSourceName">Name of the data source.</param>
/// <param name="columnsForDatasourceCompleted">The columns for datasource completed.</param>
public void CheckAllDatasources(Action <string, Exception> completed)
{
DiagnosticsDomainContext diagCtx = new DiagnosticsDomainContext();
diagCtx.CheckAllDatasources(result =>
{
Exception ex = null;
if (result.HasError)
{
result.MarkErrorAsHandled();
ex = result.Error;
throw new GadgetException(result.Error.Message);
}
string errDatasources = ((InvokeOperation <string>)result).Value;
completed(errDatasources, ex);
}, null);
}
