Executar um loop-back em chamadas SOAP e links diretos

Se você estiver escrevendo código no Microsoft SharePoint Foundation, por exemplo, uma Web Part personalizada, uma página aspx personalizada e assim por diante, você deverá fazer chamadas diretas para Microsoft.Office.Excel.Server.WebServices.dll. You do this by linking directly to Microsoft.Office.Excel.Server.WebServices.dll.

Using Simple Object Access Protocol (SOAP) from a Web server to communicate with the same Web server is also known as using loop-back SOAP calls. It is strongly recommended that you do not attempt to use loop-back SOAP calls. If you are writing code within SharePoint Foundation, you should not use SOAP to call the Excel Web Services. You should instead link to Microsoft.Office.Excel.Server.WebServices.dll locally and make calls to it as you would any local assembly.

Location of Microsoft.Office.Excel.Server.WebServices.dll

You can find Microsoft.Office.Excel.Server.WebServices.dll in one of the following locations:

• [drive:]\Program Files\Common Files\Microsoft Shared\Web server extensions\14\ISAPI

• Global assembly cache

Adding a Reference to Microsoft.Office.Excel.Server.WebServices.dll

To link directly to Microsoft.Office.Excel.Server.WebServices.dll in your project and call it from your code, you add a reference to it. On the computer where you have installed Microsoft SharePoint Server 2010, using the Add Reference dialog box in Microsoft Visual Studio, you can do one of the following:

• Select Excel Web Services from the Component Name list in the .NET tab.

• Browse to Microsoft.Office.Excel.Server.WebServices.dll located in:

[drive:]\Program Files\Common Files\Microsoft Shared\Web server extensions\14\ISAPI

Confira também

Conceitos

Acessando a API SOAP (em inglês)

Excel Services Known Issues and Tips

Excel Services Alerts

Outros recursos

Passo a passo: Desenvolvendo um aplicativo personalizado usando Web Services do Excel