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Connect to Open Exchange Rates Data from PowerBuilder

This article demonstrates how to access Open Exchange Rates data from PowerBuilder using the CData ADO.NET Provider for Open Exchange Rates.

The CData ADO.NET providers are easy-to-use, standards-based controls that can be used from any platform or development technology that supports Microsoft .NET, including PowerBuilder. This article shows how to use the CData ADO.NET Provider for Open Exchange Rates in PowerBuilder.

This article shows how to create a basic PowerBuilder application that uses the CData ADO.NET Provider for Open Exchange Rates to retrieve data.

  1. In a new WPF Window Application solution, add all the Visual Controls needed for the connection properties. Below is a typical connection string:

    AppId=abc1234;

    The Open Exchange Rates API supports basic authentication with an App Id. After you register, your App Id is displayed in your account dashboard. Set this to the AppId connection property.

  2. Add the DataGrid control from the .NET controls.
  3. Configure the columns of the DataGrid control. Below are several columns from the Account table: <DataGrid AutoGenerateColumns="False" Margin="13,249,12,14" Name="datagrid1" TabIndex="70" ItemsSource="{Binding}"> <DataGrid.Columns> <DataGridTextColumn x:Name="idColumn" Binding="{Binding Path=Id}" Header="Id" Width="SizeToHeader" /> <DataGridTextColumn x:Name="nameColumn" Binding="{Binding Path=Id}" Header="Id" Width="SizeToHeader" /> ... </DataGrid.Columns> </DataGrid>
  4. Add a reference to the CData ADO.NET Provider for Open Exchange Rates assembly.

Connect the DataGrid

Once the visual elements have been configured, you can use standard ADO.NET objects like Connection, Command, and DataAdapter to populate a DataTable with the results of an SQL query:

System.Data.CData.OpenExchangeRates.OpenExchangeRatesConnection conn conn = create System.Data.CData.OpenExchangeRates.OpenExchangeRatesConnection(connectionString) System.Data.CData.OpenExchangeRates.OpenExchangeRatesCommand comm comm = create System.Data.CData.OpenExchangeRates.OpenExchangeRatesCommand(command, conn) System.Data.DataTable table table = create System.Data.DataTable System.Data.CData.OpenExchangeRates.OpenExchangeRatesDataAdapter dataAdapter dataAdapter = create System.Data.CData.OpenExchangeRates.OpenExchangeRatesDataAdapter(comm) dataAdapter.Fill(table) datagrid1.ItemsSource=table.DefaultView

The code above can be used to bind data from the specified query to the DataGrid.