Build a Simple VCL Application for Microsoft OneDrive データ

How to build a simple VCL Application to view Microsoft OneDrive データ in RAD Studio using the CData ODBC Driver for Microsoft OneDrive.

最終更新日:2023-06-12

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

Create a Connection to Microsoft OneDrive データ

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.

OneDrive 接続プロパティの取得・設定方法

OneDrive は接続にOAuth 認証を使用します。OAuth を使用して認証するには、OneDrive API 用のアプリを作成して、OAuth クライアントID、OAuth クライアントシークレット、およびコールバックURLを取得してください。OAuth 情報の取得については、MS 公式のこちらのページが参考になります。取得したこれらの情報をOAuthClientIdOAuthClientSecretCallbackURL の接続プロパティに設定することで認証を設定できます。

認証についての詳細は、ヘルプドキュメントの「OAuth」のセクションをご確認ください。

You can then follow the steps below to use the Data Explorer to create a FireDAC connection to Microsoft OneDrive データ.

  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 Microsoft OneDrive.

Create VCL Applications with Connectivity to Microsoft OneDrive データ

Follow the procedure below to start executing queries to Microsoft OneDrive データ 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 Microsoft OneDrive データ.
    • 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, Name FROM Files WHERE Id = 'Jq74mCczmFXk1tC10GB'
    • 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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