错误提示api.SendOrder(o)
Imports Marketiva.Streamsterapi


Public Class Marketiva
Dim api As StreamsterApiInterfaceClient = New StreamsterApiInterfaceClient()
Dim q As Quote
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Timer1.Interval = 500
Timer1.Start()

End Sub

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

q = api.GetQuote("EUR/USD")
TextBox.Text = q.Last
TextBox1.Text = q.Bid
TextBox2.Text = q.Offer
TextBox3.Text = q.Change
TextBox4.Text = q.High
TextBox5.Text = q.Low
TextBox6.Text = q.Time

End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim o As Order = New Order

o.Instrument = "EUR/USD"
o.Desk = "Virtual Forex"
o.Quantity = 10
o.QuantitySpecified = True

api.SendOrder(o)
End Sub
End Class

倒数第三行出现错误时为什么？

系统提示如下：
反序列化操作“SendOrder”的响应消息的正文时出现错误。所需的命名空间“http://schemas.xmlsoap.org/soap/envelope/”中的结尾元素“Body”。找到 命名空间“http://www.novativa.com/ws/streamsterapi”中的元素“result”。 行 1，位置 190。

[解决办法]
WebService吧。估计你本地代理类和服务端已经不一致了。需要重新本地代理。