DataConnector
はじめに
ADO.NET provider for Salesforce > はじめに

The ADO.NET provider for Salesforce provides a wide range of features that enable connectivity to Salesforce from .Net applications. The documentation will help you understand the C1.AdoNet.Salesforce namespace, which includes all the available classes that can be used to connect and retrieve data from Salesforce.

DataConnectors are mostly used in combination with other ComponentOne components, such as DataEngine and FlexPivot. The procedure below describes how to use the DataConnector in a console application within Visual Studio.

How to create a new Console Application

The ADO.NET provider for Salesforce can be used in any application. In this guide, a console application is created:

  1. Open Visual Studio.
  2. Select Create a new project from the Get started pane.
  3. In the Create a new project window, select Console Application and click Next, as in the screenshot below: 
    Create new project window
  4. In the Configure your new project window, write your project's name, choose location to save your project and click Create.

How to add the NuGet packages

  1. From the Project menu, select Manage NuGet Packages. The NuGet Package Manager appears.
  2. In the NuGet Package Manager, click the Package source drop down and select nuget.org
  3. In the left pane of the Browse tab, select C1.AdoNet.Salesforce.
  4. In the right pane of the Browse tab, click Install to add the reference to the package.

How to use ADO.Net provider for Salesforce to retrieve data

Follow the steps provided below to learn and implement data retrieval using ADO.NET provider for Salesforce.

  1.  In the first step, create a reference to the Salesforce service URL. The connection string contains various parameters such as username, password, security token, OAuth client ID, OAuth client secret, OAuth token endpoint, and URL. Make sure to replace the asterisks ("*********") with the appropriate values for your Salesforce environment    
    C#
    コードのコピー
    const string GCSalesforceServerConnectionString = @"Username=*********;Password=*********;Security Token=***********;
                                                        OAuth Client Id=**************; 
                                                        OAuth Client Secret=*************; 
                                                        OAuth Token Endpoint=https://ap16.salesforce.com/services/oauth2/token; 
                                                        Url=https://ap16.salesforce.com/services/data/v45.0";
    
  2. In the next step, use the C1SalesforceDataAdapter class to retrieve the data. It starts by defining an SQL query that selects specific fields from the "Order" object, limiting the results to 10 records. Click here for more information on creating connections. The C1SalesforceConnection class implements the ADO.NET DbConnection, similar to the standard ADO.NET connection object. Once the connection is established, adapter's Fill method is used to retrieve the data from the source fill it into a DataTable as shown in the following code example.
       
    C#
    コードのコピー
    String sql = "SELECT Id,BillingCity,BillingState from [Order] limit 10";
    using (C1SalesforceConnection c = new C1SalesforceConnection($@"{GCSalesforceServerConnectionString}"))
    {
        //接続を開きます。
        c.Open();
        using (C1SalesforceDataAdapter a = new C1SalesforceDataAdapter(c, sql))
        {
            //アダプターを使用してデータ テーブルを埋めます。
            DataTable t = new DataTable();
            a.Fill(t);
    
            // 取得したテーブルデータをコンソールに出力します。
            foreach (DataRow dataRow in t.Rows)
            {
                foreach (var item in dataRow.ItemArray)
                {
                    Console.Write(item + " - ");
                }
                Console.WriteLine();
            }
        }
    }