DataBind Controls to Sage 300 データ in C++Builder

The CData ODBC Driver for Sage 300 makes it easy to integrate connectivity to live Sage 300 のデータ with standard data access components in C++Builder. This article shows how to create a simple visual component library (VCL) application in C++Builder that connects to Sage 300 のデータ, executes queries, and displays the results in a grid. An additional section shows how to use FireDAC components to execute commands from code.

Create a Connection to Sage 300 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.

Sage 300 には、Sage 300 Web API で通信するための初期設定が必要となるます。

• Sage 300 のユーザー向けのセキュリティグループを設定します。Sage 300 のユーザーに、Security Groups の下にあるbSage 300 Web API オプションへのアクセスを付与します（各モジュール毎に必要です）。
• /Online/Web と/Online/WebApi フォルダ内のweb.config ファイルを両方編集して、AllowWebApiAccessForAdmin のキーを true 設定します。webAPI アプリプールを再起動すると設定が反映されます。
• ユーザーアクセスを設定したら、https://server/Sage300WebApi/ をクリックして、web API へのアクセスを確認してください。

Basic 認証を使用してSage 300 へ認証します。

Basic 認証を使用して接続する

Sage 300 に認証するには、次のプロパティを入力してください。プロバイダーは、クッキーを使用してSage 300 が開いたセッションを再利用することに注意してください。 そのため、資格情報はセッションを開く最初のリクエストでのみ使用されます。その後は、Sage 300 が返すクッキーを認証に使用します。

• Url：Sage 300 をホストするサーバーのURL に設定します。Sage 300 Web API 用のURL を次のように作成してください。 {protocol}://{host-application-path}/v{version}/{tenant}/ 例えば、 http://localhost/Sage300WebApi/v1.0/-/ です。
• User：アカウントのユーザー名に設定します。
• Password：アカウントのパスワードに設定します。

You can then follow the steps below to use the Data Explorer to create a FireDAC connection to Sage 300.

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 Sage 300.

Create VCL Applications with Connectivity to Sage 300 データ

Follow the procedure below to start querying Sage 300 のデータ 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 Sage 300.
   • 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 InvoiceUniquifier, ApprovedLimit FROM OEInvoices WHERE AllowPartialShipments = 'Yes'
   • 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.

Execute Commands to Sage 300 with FireDAC Components

You can use the TFDConnection and TFQuery components to execute queries to Sage 300 のデータ. This section provides sage300specific examples of executing queries with the TFQuery component.

Connect to Sage 300 データ

To connect to the data source, set the Connected property of the TFDConnection component to true. You can set the same properties from code:

To connect the TFDQuery component to Sage 300 のデータ, set the Connection property of the component. When a TFDQuery component is added at design time, its Connection property is automatically set to point to a TFDConnection on the form, as in the application above.

Create Parameterized Queries

To create a parameterized query, use the following syntax below:

The example above binds a string-type input parameter by name and then opens the dataset that results.

Prepare the Statement

Preparing statements is costly in system resources and time. The connection must be active and open while a statement is prepared. By default, FireDAC prepares the query to avoid recompiling the same query over and over. To disable statement preparation, set ResourceOptions.DirectExecute to True; for example, when you need to execute a query only once.

Execute a Query

To execute a query that returns a result set, such as a select query, use the Open method. The Open method executes the query, returns the result set, and opens it. The Open method will return an error if the query does not produce a result set.

Related Articles

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

• DataBind Controls to Sage 300 データ in Delphi
• Viewing Sage 300 データ in RAD Studio Data Explorer
• Build a Simple VCL Application for Sage 300 データ