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Rapidly create and deploy powerful .NET applications that integrate with Trello data including Lists, Cards, Boards, and more!

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Connect to Trello Data from PowerBuilder


This article demonstrates how to access Trello data from Appeon PowerBuilder using the CData ADO.NET Provider for Trello.

This article demonstrates using the CData ADO.NET Provider for Trello in PowerBuilder, showcasing the ease of use and compatibility of these standards-based controls across various platforms and development technologies that support Microsoft .NET, including Appeon PowerBuilder.

This article shows how to create a basic PowerBuilder application that uses the CData ADO.NET Provider for Trello 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:

    APIKey=myApiKey;Token=myGeneratedToken;InitiateOAuth=GETANDREFRESH

    Trello uses token-based authentication to grant third-party applications access to their API. When a user has granted an application access to their data, the application is given a token that can be used to make requests to Trello's API.

    Trello's API can be accessed in 2 different ways. The first is using Trello's own Authorization Route, and the second is using OAuth1.0.

    • Authorization Route: At the moment of registration, Trello assigns an API key and Token to the account. See the Help documentation for information on how to connect via the Authorization route.
    • OAuth Route: Similar to using Authorization, OAuth creates an Application Id and Secret when you create your account. See the Help documentation for information on how to to connect.

  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=BoardId}" Header="BoardId" Width="SizeToHeader" /> ... </DataGrid.Columns> </DataGrid>
  4. Add a reference to the CData ADO.NET Provider for Trello 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.Trello.TrelloConnection conn conn = create System.Data.CData.Trello.TrelloConnection(connectionString) System.Data.CData.Trello.TrelloCommand comm comm = create System.Data.CData.Trello.TrelloCommand(command, conn) System.Data.DataTable table table = create System.Data.DataTable System.Data.CData.Trello.TrelloDataAdapter dataAdapter dataAdapter = create System.Data.CData.Trello.TrelloDataAdapter(comm) dataAdapter.Fill(table) datagrid1.ItemsSource=table.DefaultView

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