执行用户定义例程或聚合 "" 期间出现 .NET Framework 错误:

消息 6522，级别 16，状态 1，过程 InsertCurrency_String，第 0 行
在执行用户定义例程或聚合 "InsertCurrency_String" 期间出现 .NET Framework 错误:
System.NullReferenceException: 未将对象引用设置到对象的实例。
System.NullReferenceException:
   在 SqlServerCLRCallNet.GetConfigApp..ctor()
   在 SqlServerCLRCallNet.CLRFunction.CallSAPFunUpdateDataVB(String strFunName, ListDictionary strArgs, ListDictionary strTableArgs, ListDictionary strRetTabs, ListDictionary& strResult)
   在 SqlServerCLRCallNet.CLRFunction.GetResultSetString(String SNO, String strSONum, String strLot, String strSchedLine, DateTime DTUpdateData)
。

System.NullReferenceException: 未将对象引用设置到对象的实例。

 

原因：代码里面无法读取到Config里面的数据

LFCFunction.cs

 GetConfigApp getApp = new GetConfigApp();
            try
            {
                VBSAP VBSap = new VBSAP(null, getApp.ApplicationServer, getApp.Client, getApp.SystemNumber.ToString());
                bool boolConn = VBSap.ConnectToSAP(getApp.User, getApp.Password, getApp.Language);

 

GetConfigApp.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace SqlServerCLRCallNet
{
    public class GetConfigApp
    {
        public  string ApplicationServer = System.Configuration.ConfigurationManager.AppSettings["ApplicationServer"].ToString();
        public  string Client =  System.Configuration.ConfigurationManager.AppSettings["Client"].ToString();
        public  string Language =  System.Configuration.ConfigurationManager.AppSettings["Language"].ToString();
        public  string User =  System.Configuration.ConfigurationManager.AppSettings["User"].ToString(); 
        public  string Password = System.Configuration.ConfigurationManager.AppSettings["Password"].ToString(); 
        public  int SystemNumber =  int.Parse(System.Configuration.ConfigurationManager.AppSettings["SystemNumber"]); 


    }
}

App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <appSettings>
        <!-- SAP系统IP -->
        <!-- SAP系统IP -->
        <add key="ApplicationServer" value="192.168.00.00" />

        <!-- SAP客户端号500 -->
        <add key="Client" value="500"/>
        <!-- SAP登陆语言 -->
        <add key="Language" value="ZH"/>
        <!-- 用户帐号 -->
        <add key="User" value="ZRFC_USER"/>
        <!-- 用户密码 -->
        <add key="Password" value="erp.rfc"/>
        <!-- SAP系统编号 -->
        <add key="SystemNumber" value="20" />
        <add key="ClientSettingsProvider.ServiceUri" value="" />
    </appSettings>
    </configuration>