Learn more
 

Ready to get started?

Download a free trial of the Parquet Data Provider to get started:

 Download Now

Learn more:

Parquet Icon Parquet ADO.NET Provider

Rapidly create and deploy powerful .NET applications that integrate with Parquet.

In this article

Related articles

Connect to Parquet Data from PowerBuilder


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

This article demonstrates using the CData ADO.NET Provider for Parquet 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 Parquet 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:

    URI=C:/folder/table.parquet;

    Connect to your local Parquet file(s) by setting the URI connection property to the location of the Parquet file.

  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 Parquet 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.Parquet.ParquetConnection conn conn = create System.Data.CData.Parquet.ParquetConnection(connectionString) System.Data.CData.Parquet.ParquetCommand comm comm = create System.Data.CData.Parquet.ParquetCommand(command, conn) System.Data.DataTable table table = create System.Data.DataTable System.Data.CData.Parquet.ParquetDataAdapter dataAdapter dataAdapter = create System.Data.CData.Parquet.ParquetDataAdapter(comm) dataAdapter.Fill(table) datagrid1.ItemsSource=table.DefaultView

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