ZohoBooksLoader component is used for bulk uploading a large number of records to Zoho Books.

To start uploading data, create a ZohoBooksLoader component. Then you may tweak its BatchSize property. BatchSize property determines a maximal number of records in a batch. After this you need to specify columns to load data. You may do it either manually, using the Columns property, or you may use the CreateColumns method to retrieve table columns information from the table specified in the TableName property. Then call the Open method and use the SetValue method to set values for the row fields. To switch to the next row, call the NextRow method.

After you have finished loading data, call the Close method. This mthod sends the last batch to the server.

The following example demonstrates using the ZohoBooksLoader class.

    using (var connection = new ZohoBooksConnection("security token=d3c6452922f65c24b59c75aee0d0112b;")) {
        connection.Open();

        ZohoBooksLoader loader = new ZohoBooksLoader("Accounts", connection);
        loader.Columns.Add("Account Name", DbType.String, 0, 0, 0);
        loader.Columns.Add("Website", DbType.String, 0, 0, 0);

        try {
            loader.Open();
            for (int i = 1; i <= 100; i++) {
                loader.SetValue("Account Name", "Test " + i);
                loader.SetValue("Website", "www.devart.com");
                loader.NextRow();
            }
            loader.Close();
        }
        catch (ZohoBooksException ex) {

            // process exception
        }
    }

    Using connection As New ZohoBooksConnection("security token=d3c6452922f65c24b59c75aee0d0112b;")
        connection.Open()

        Dim loader As New ZohoBooksLoader("Accounts", connection)
        loader.Columns.Add("Account Name", DbType.String, 0, 0, 0)
        loader.Columns.Add("Website", DbType.String, 0, 0, 0)

        Try
            loader.Open()
            For i As Integer = 1 To 100
                loader.SetValue("Account Name", "Test " & i)
                loader.SetValue("Website", "www.devart.com")
                loader.NextRow()
            Next
            loader.Close()

        Catch ex As ZohoBooksException
            'process exception

        End Try
    End Using

After calling the Close method you can retrieve the results of data loading operation as an array of structs with the GetResults method.