データを更新する
この例は、 Refresh メソッドを使用して、開いているブックで外部データ ソースから更新されたデータを取得する方法を示しています。 Refresh メソッドの Excel Web Services シグネチャは次のとおりです。
public Status[] Refresh (string sessionId, string connectionName)
Public Function Refresh(ByVal sessionId As String, ByVal connectionName As String) As Status()
End Function
Microsoft.Office.Excel.Server.WebServices.dll に直接リンクする場合、 Refresh メソッドのシグネチャは次のとおりです。
public void Refresh (string sessionId, string connectionName,
out Status[] status)
Public Sub Refresh(ByVal sessionId As String, ByVal connectionName As String, <System.Runtime.InteropServices.Out()> ByRef status() As Status)
End Sub
引数は connectionName 、Microsoft Office Excel 2007 ブック内の接続名を参照します。 Refresh メソッドを使用すると、ブック内の 1 つのデータ接続を更新したり、すべての接続を更新したりできます。 これは、特に、更新オンオープン機能なしで接続が作成される場合に便利です。接続を更新すると、接続を使用するすべてのオブジェクトとデータが更新されます。 ブックで使用可能なすべての接続を更新するには、接続名引数に空の接続文字列または null を渡します。更新操作は、使用される認証の種類に関係なく試行され、それ以上の確認やプロンプトは表示されません。Refresh メソッドの詳細については、Excel Web Services リファレンス ドキュメントを参照してください。
例
次のコードのサンプルは、Excel Web Services を使用して Refresh メソッドを呼び出す方法を示しています。 この例の接続名は「MyInventoryConnection」です。
// Instantiate the Web service.
ExcelService xlservice = new ExcelService();
Status[] outStatus;
RangeCoordinates rangeCoordinates = new RangeCoordinates();
string sheetName = "Sheet3";
// Set the path to the workbook to open.
// TODO: Change the path to the workbook
// to point to a workbook you have access to.
// The workbook must be in a trusted location.
string targetWorkbookPath =
http://myserver02/example/Shared%20Documents/Book1.xlsx";
// Set credentials for requests.
xlservice.Credentials = System.Net.CredentialCache.DefaultCredentials;
// Call open workbook, and point to the trusted
// location of the workbook to open.
string sessionId = xlservice.OpenWorkbook(targetWorkbookPath, "en-US", "en-US", out outStatus);
// Prepare object to define range coordinates.
rangeCoordinates.Column = 0;
rangeCoordinates.Row = 0;
rangeCoordinates.Height = 8;
rangeCoordinates.Width = 10;
// Set the cell located in the first row and
// ninth column to 300.
xlservice.SetCell(sessionId, sheetName, 0, 8, 300);
xlservice.Refresh(sessionId, "MyInventoryConnection");
' Instantiate the Web service.
Dim xlservice As New ExcelService()
Dim outStatus() As Status
Dim rangeCoordinates As New RangeCoordinates()
Dim sheetName As String = "Sheet3"
' Set the path to the workbook to open.
' TODO: Change the path to the workbook
' to point to a workbook you have access to.
' The workbook must be in a trusted location.
' Set credentials for requests.
Dim targetWorkbookPath As String = http: xlservice.Credentials = System.Net.CredentialCache.DefaultCredentials 'myserver02/example/Shared%20Documents/Book1.xlsx";
' Call open workbook, and point to the trusted
' location of the workbook to open.
Dim sessionId As String = xlservice.OpenWorkbook(targetWorkbookPath, "en-US", "en-US", outStatus)
' Prepare object to define range coordinates.
rangeCoordinates.Column = 0
rangeCoordinates.Row = 0
rangeCoordinates.Height = 8
rangeCoordinates.Width = 10
' Set the cell located in the first row and
' ninth column to 300.
xlservice.SetCell(sessionId, sheetName, 0, 8, 300)
xlservice.Refresh(sessionId, "MyInventoryConnection")
Microsoft.Office.Excel.Server.WebServices.dll に直接リンクする場合、同等のコードは次のとおりです。
// Instantiate the ExcelService class.
ExcelService xlservice = new ExcelService();
Status[] outStatus;
RangeCoordinates rangeCoordinates = new RangeCoordinates();
string sheetName = "Sheet3";
// Set the path to the workbook to open.
// TODO: Change the path to the workbook
// to point to a workbook you have access to.
// The workbook must be in a trusted location.
string targetWorkbookPath =
http://myserver02/example/Shared%20Documents/Book1.xlsx";
// Call the open workbook, and point to the trusted
// location of the workbook to open.
string sessionId = xlservice.OpenWorkbook(targetWorkbookPath, "en-US", "en-US", out outStatus);
// Set the cell located in the first row and
// ninth column to 300.
xlservice.SetCell(sessionId, sheetName, 0, 8, 300, out outStatus);
xlservice.Refresh(sessionId, "MyInventoryConnection", out outStatus);
byte[] workbook = xlService.GetWorkbook(sessionId, WorkbookType.FullWorkbook, out status);
// Write the resulting Excel file to stdout
// as a binary stream.
BinaryWriter binaryWriter =
new BinaryWriter(Console.OpenStandardOutput());
binaryWriter.Write(workbook);
binaryWriter.Close();
...
...
' Instantiate the ExcelService class.
Dim xlservice As New ExcelService()
Dim outStatus() As Status
Dim rangeCoordinates As New RangeCoordinates()
Dim sheetName As String = "Sheet3"
' Set the path to the workbook to open.
' TODO: Change the path to the workbook
' to point to a workbook you have access to.
' The workbook must be in a trusted location.
' Call the open workbook, and point to the trusted
' location of the workbook to open.
Dim targetWorkbookPath As String = http: String sessionId = xlservice.OpenWorkbook(targetWorkbookPath, "en-US", "en-US", outStatus) 'myserver02/example/Shared%20Documents/Book1.xlsx";
' Set the cell located in the first row and
' ninth column to 300.
xlservice.SetCell(sessionId, sheetName, 0, 8, 300, outStatus)
xlservice.Refresh(sessionId, "MyInventoryConnection", outStatus)
Dim workbook() As Byte = xlService.GetWorkbook(sessionId, WorkbookType.FullWorkbook, status)
' Write the resulting Excel file to stdout
' as a binary stream.
Dim binaryWriter As New BinaryWriter(Console.OpenStandardOutput())
binaryWriter.Write(workbook)
binaryWriter.Close()
...
...