与 SAP 集成
我正在创建一个与 SAP 集成的系统。
客户给了我函数和参数，据他说，这个函数通常是在 SAP 中执行的，但在我的代码中，当我尝试检索参数时，它返回 null。
这是我的代码（编辑：基于 SAP GUI for Windows 中提供的 RFC 客户端）：
SAPFunctionsOCX.SAPFunctionsClass func = new SAPFunctionsOCX.SAPFunctionsClass();
func.Connection = connection;
SAPFunctionsOCX.IFunction ifunc = (SAPFunctionsOCX.IFunction)func.Add(functionName);
SAPTableFactoryCtrl.Tables tables = (SAPTableFactoryCtrl.Tables)ifunc.Tables;
SAPTableFactoryCtrl.Table objTable = (SAPTableFactoryCtrl.Table)tables[tableName];
//Paramters (Find one column "MATNR"
SAPTableFactoryCtrl.Columns cols2 = (SAPTableFactoryCtrl.Columns)objTable.Columns;
for (int i = 1; i <= cols2.Count; i++)
{
SAPTableFactoryCtrl.Column col = (SAPTableFactoryCtrl.Column)cols2[i];
Console.WriteLine(col.Name);
}
//Error here! matnr == null
SAPFunctionsOCX.IParameter matnr = (SAPFunctionsOCX.IParameter)ifunc.get_Exports("MATNR");
在互联网上搜索发现了几个与我的类似的示例， 这里，这里和这里！
为什么方法 get_Exports("MATNR"); 返回 null？
I am creating a system to integrate with SAP.
The client gave me the function and parameters, according to him, this function was usually performed in SAP but in my code when I try to retrieve the parameter, it returns me null.
Here's my code (EDIT: based on the RFC client provided within SAP GUI for Windows):
SAPFunctionsOCX.SAPFunctionsClass func = new SAPFunctionsOCX.SAPFunctionsClass();
func.Connection = connection;
SAPFunctionsOCX.IFunction ifunc = (SAPFunctionsOCX.IFunction)func.Add(functionName);
SAPTableFactoryCtrl.Tables tables = (SAPTableFactoryCtrl.Tables)ifunc.Tables;
SAPTableFactoryCtrl.Table objTable = (SAPTableFactoryCtrl.Table)tables[tableName];
//Paramters (Find one column "MATNR"
SAPTableFactoryCtrl.Columns cols2 = (SAPTableFactoryCtrl.Columns)objTable.Columns;
for (int i = 1; i <= cols2.Count; i++)
{
SAPTableFactoryCtrl.Column col = (SAPTableFactoryCtrl.Column)cols2[i];
Console.WriteLine(col.Name);
}
//Error here! matnr == null
SAPFunctionsOCX.IParameter matnr = (SAPFunctionsOCX.IParameter)ifunc.get_Exports("MATNR");
Searching the internet found several examples similar to mine,
here, here and here!
Why the method get_Exports("MATNR"); returns null?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
为您提供的 RFC 功能的确切参数是什么？
在第一部分中，您似乎在循环表的列名，而在第二部分中，您正在搜索参数（即不在表中）。
问候
Guillaume
PS：ABAP 是 SAP 专有语言
What are the exact parameters that where given to you for the RFC function ?
In the first part you seems to be looping over the column name of a table, and in the second one, you're searching for a parameter (ie not in the table).
regards
Guillaume
PS : ABAP is SAP proprietary language
我认为您忘记了实际的函数调用，至少在代码示例中是这样
I think you forgot the actual function call, at least in the code sample