Eu estou tentando converter o código C # de amostra fornecido meu echosign em VB.net para uso dentro de nossos aplicativos. Especificamente o método SendDocument.

Alguém já fez isso já?

A API está lançando de volta uma mensagem de erro "Falha: java.lang.NullPointerException" quando eu a chamo.

Aqui está a função convertida:

<code>Public Shared Function SendDocument(ByVal apiKey As String, ByVal file As Byte(), ByVal recipientEmailAddress As String, ByVal fileName As String, ByVal message As String, ByVal expireDays As Int32) As String

    Try

        Dim ES As EchoSignDocumentService13 = New EchoSignDocumentService13()
        ES.Url = "https://secure.echosign.com/services/EchoSignDocumentService13"

        Dim recipients(1) As String
        recipients(0) = recipientEmailAddress

        Dim localSenderInfo As com.echosign.secure.SenderInfo = Nothing

        Dim echoFileInfo(1) As com.echosign.secure.FileInfo
        echoFileInfo(0) = New com.echosign.secure.FileInfo()
        With echoFileInfo(0)
            .fileName = fileName
            .mimeType = "application/msword"
            .file = file
        End With

        Dim echoDocumentInfo As com.echosign.secure.DocumentCreationInfo = New com.echosign.secure.DocumentCreationInfo()
        With echoDocumentInfo
            .tos = recipients
            .name = fileName
            .message = message
            .fileInfos = echoFileInfo
            .signatureType = SignatureType.ESIGN
            .signatureFlow = SignatureFlow.SENDER_SIGNATURE_NOT_REQUIRED
            .daysUntilSigningDeadline = expireDays
        End With

        Dim echoKey() As DocumentKey
        echoKey = ES.sendDocument(apiKey, localSenderInfo, echoDocumentInfo)

        Return echoKey(0).documentKey.ToString()

    Catch ex As Exception

        Return "EchoError: " & ex.Message

    End Try

End Function
</code>

Qualquer ajuda é muito bem vinda

obrigado

Richard