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Rapidly create and deploy powerful .NET applications that integrate with MongoDB document databases.

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Connect to MongoDB Data from PowerBuilder


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

This article demonstrates using the CData ADO.NET Provider for MongoDB 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 MongoDB to perform reads and writes.

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

    Server=MyServer;Port=27017;Database=test;User=test;Password=Password;

    Set the Server, Database, User, and Password connection properties to connect to MongoDB. To access MongoDB collections as tables you can use automatic schema discovery or write your own schema definitions. Schemas are defined in .rsd files, which have a simple format. You can also execute free-form queries that are not tied to the schema.

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

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