商店应用可访问网络服务

Question

我与webservice建立了连接，现在我得到了一个不同的web服务（https而不是http），代码不再起作用了。有谁知道我必须改变它才能使用https？

public AppWebService_PortClient openConn()
{
    BasicHttpBinding binding = new BasicHttpBinding { };
    binding.Security.Mode = BasicHttpSecurityMode.TransportCredentialOnly;
    binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Windows;

    EndpointAddress epa = new EndpointAddress("https://172.16.restOfURL");
    AppWebService_PortClient ws = new AppWebService_PortClient(binding, epa);
    ws.ClientCredentials.Windows.ClientCredential = new System.Net.NetworkCredential("theUser", "ThePassword", "TheDomain");

    return ws;
}

这给我提供了以下错误：

  

System.ServiceModel.dll中出现'System.Configuration.ConfigurationErrorsException'类型的第一次机会异常

     

其他信息：类型'Microsoft.VisualStudio.Diagnostics.ServiceModelSink.Behavior，

如果我按下继续，它最终会更进一步告诉我

  

System.ServiceModel.dll中出现'System.ArgumentException'类型的第一次机会异常

     

其他信息：提供的URI方案“https”无效;预计'http'。

这是与网络服务交谈的代码，

public async Task getData()
{
    if (IsRunning)
        return;
    try
    {
        IsRunning = true;
        Groups = new ObservableCollection<ProductGroup>();
        var ws = referance.openConn();
        Item itemSimple = new Item();

        GetItems wsrequest = new GetItems(itemSimple, "", "", "0");
        GetItems_Result result = await ws.GetItemsAsync(wsrequest);

        ItemCategory ic = new ItemCategory();
        GetItemCategory catrequest = new GetItemCategory(ic);
        GetItemCategory_Result catresult = await ws.GetItemCategoryAsync(catrequest);

        var results = catresult.itemCategoryExport.ItemCategorys;
        foreach (ItemCategorys itemc in results)
        {
            ProductGroup p = new ProductGroup(itemc.Code, itemc.Description, "/Assets/logo.jpg");
            Groups.Add(p);
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }
    finally
    {
        IsRunning = false;
    }