Question

我有一个返回类对象的WCF服务。如何在客户端应用程序中访问这些返回值。

服务代码：

public ET_ITAM_RequestDetails GetAssociateFreewareRequestDetails(ET_ITAM_RequestDetails objET_ITAM_RequestDetails)
{
    SqlDataReader rdr = null;
    connect.Open();
    SqlCommand cmd = new SqlCommand("ET_ITAM_GetAssociateFreewareRequestDetails", connect);
    cmd.CommandType = CommandType.StoredProcedure;

    while (rdr.Read())
    {
        objET_ITAM_RequestDetails.AssociateID = (string)rdr[0];
        objET_ITAM_RequestDetails.AssetID = (string)rdr[1];
        objET_ITAM_RequestDetails.ETRequestID = (int)rdr[2];
        objET_ITAM_RequestDetails.FreewareName = (string)rdr[3];
        objET_ITAM_RequestDetails.InstallationCommand = (string)rdr[4];
        objET_ITAM_RequestDetails.InstallationArguments = (string)rdr[5];
        objET_ITAM_RequestDetails.VerificationType = (bool)rdr[6];
        objET_ITAM_RequestDetails.VerificationPath = (string)rdr[7];
    }

    return objET_ITAM_RequestDetails;
}

在客户端：

ServiceReference1.ET_ITAM_RequestDetails objItam = new 

ServiceReference1.ET_ITAM_RequestDetails();

// need to get return value.
// if i create another object it not work as expected
obj_service.GetAssociateFreewareRequestDetails(objItam);

Answer 1

根据ServiceReference1来判断，您已成功将WCF引用添加到客户端解决方案中。但是，据我所知，你错过了WCF客户端。

您没有提供足够的信息来了解您的客户端会被调用，但您的代码应该类似于：

ServiceReference1.ET_ITAM_RequestDetails objItam = new 
    ServiceReference1.ET_ITAM_RequestDetails();

// the service generation will create a WCF client for you, thought I'm not sure what your client's name would be.
objItam = obj_service.GetAssociateFreewareRequestDetails(objItam);

再次查看您的代码，我想我看到了您的问题。你做了新的wcf客户端，但没有提供代码。

obj_service.GetAssociateFreewareRequestDetails(objItam);

您只是调用该函数，但不会将其值返回给您的对象。

objItam = obj_service.GetAssociateFreewareRequestDetails(objItam);

我不清楚你为什么要新建一个空对象，将它传递给你的函数，然后返回它。为什么不把它新起来并在函数中返回呢？

public ET_ITAM_RequestDetails GetAssociateFreewareRequestDetails()
{
    ET_ITAM_RequestDetails objET_ITAM_RequestDetails = new ET_ITAM_RequestDetails();

    SqlDataReader rdr = null;
    connect.Open();
    SqlCommand cmd = new SqlCommand("ET_ITAM_GetAssociateFreewareRequestDetails", connect);
    cmd.CommandType = CommandType.StoredProcedure;

    while (rdr.Read())
    {
        objET_ITAM_RequestDetails.AssociateID = (string)rdr[0];
        objET_ITAM_RequestDetails.AssetID = (string)rdr[1];
        objET_ITAM_RequestDetails.ETRequestID = (int)rdr[2];
        objET_ITAM_RequestDetails.FreewareName = (string)rdr[3];
        objET_ITAM_RequestDetails.InstallationCommand = (string)rdr[4];
        objET_ITAM_RequestDetails.InstallationArguments = (string)rdr[5];
        objET_ITAM_RequestDetails.VerificationType = (bool)rdr[6];
        objET_ITAM_RequestDetails.VerificationPath = (string)rdr[7];
    }

    return objET_ITAM_RequestDetails;
}

如果你的读者有多行，那么上面（和你的原文）当然会有（可能）意想不到的结果 - 如果你不知道的话就打电话给你。

WCF返回的客户端中的访问对象

1 个答案: