Build a Simple VCL Application for Quickbase Data



How to build a simple VCL Application to view Quickbase data in RAD Studio using the CData ODBC Driver for Quickbase.

Embarcadero RAD Studio provides a development environment for Delphi and C++Builder applications. With the CData ODBC Driver for Quickbase, you gain access to live Quickbase data within RAD Studio, abstracting the data into tables, views, and stored procedures that can be used to retrieve and update Quickbase data. This article will walk through connecting to Quickbase and creating a simple VCL application with the Form Designer.

Create a Connection to Quickbase Data

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

User Authentication Method

To authenticate with user credentials, specify the following connection properties:

  1. Set the User and Password.
  2. If your application requires an ApplicationToken;, you must provide it otherwise an error will be thrown. You can find the ApplicationToken under SpecificApp > Settings > App management > App properties > Advanced settings > Security options > Manage Application Token.

User Token Authentication

To authenticate with a user token, specify the following connection properties:

  1. Set UserToken and you are ready to connect. You can find the UserToken under Quick Base > My Preferences > My User Information > Manage User Tokens.

You can then follow the steps below to use the Data Explorer to create a FireDAC connection to Quickbase data.

  1. In a new VCL Forms application, expand the FireDAC node in the Data Explorer.
  2. Right-click the ODBC Data Source node in the Data Explorer.
  3. Click Add New Connection.
  4. Enter a name for the connection.
  5. In the FireDAC Connection Editor that appears, set the DataSource property to the name of the ODBC DSN for Quickbase.

Create VCL Applications with Connectivity to Quickbase Data

Follow the procedure below to start executing queries to Quickbase data from a simple VCL application that displays the results of a query in a grid.

  1. Drop a TFDConnection component onto the form and set the following properties:

    • ConnectionDefName: Select the FireDAC connection to Quickbase data.
    • Connected: Select True from the menu and, in the dialog that appears, enter your credentials.
  2. Drop a TFDQuery component onto the form and set the properties below:

    • Connection: Set this property to the TFDConnection component, if this component is not already specified.
    • SQL: Click the button in the SQL property and enter a query. For example:

      SELECT Id, Column1 FROM SampleTable_1 WHERE Column2 = '100'
    • Active: Set this property to true.
  3. Drop a TDataSource component onto the form and set the following property:

    • DataSet: In the menu for this property, select the name of the TFDQuery component.
  4. Drop a TDBGrid control onto the form and set the following property:

    • DataSource: Select the name of the TDataSource.
  5. Drop a TFDGUIxWaitCursor onto the form — this is required to avoid a run-time error.

You now have an executable application that displays the results of the SQL Query set in the TFDQuery object.

Related Articles

Below you can find other articles for using the CData ODBC Driver with RAD Studio, Delphi, and C++ Builder.

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Quickbase Icon Quickbase ODBC Driver

The Quickbase ODBC Driver is a powerful tool that allows you to connect with live data from Quickbase, directly from any applications that support ODBC connectivity.

Access Quickbase data like you would a database - read, write, and update Quickbase Applications, etc. through a standard ODBC Driver interface.