[U8开发] com对象调用类 DxComObject

• 避免复杂的com引用

using System;
using System.Globalization;
using System.Reflection;
using System.Runtime.InteropServices;

public class DxComObject : IDisposable
{
    private Type _ObjType;

    public object ComInstance;

    public Type ComType
    {
        get
        {
            return _ObjType;
        }
    }

    public object this[string propName]
    {
        get
        {
            return _ObjType.InvokeMember(propName, BindingFlags.GetProperty, null, ComInstance, null);
        }
        set
        {
            _ObjType.InvokeMember(propName, BindingFlags.SetProperty, null, ComInstance, new object[1]
            {
                value
            });
        }
    }

    public object this[string filedName, BindingFlags flags]
    {
        get
        {
            bool flag = 0 == 0;
            return _ObjType.InvokeMember(filedName, flags, null, ComInstance, null);
        }
        set
        {
            bool flag = 0 == 0;
            _ObjType.InvokeMember(filedName, flags, null, ComInstance, new object[1]
            {
                value
            });
        }
    }

    public DxComObject(string ComName)
    {
        _ObjType = Type.GetTypeFromProgID(ComName, false);
        if (_ObjType == null)
        {
            throw new Exception("指定的COM对象名称无效");
        }
        ComInstance = Activator.CreateInstance(_ObjType);
    }

    public object DoMethod(string MethodName, object[] args)
    {
        return ComType.InvokeMember(MethodName, BindingFlags.InvokeMethod, null, ComInstance, args);
    }

    public object DoMethod(string MethodName, object[] args, object[] paramMods)
    {
        ParameterModifier parameterModifier = new ParameterModifier(paramMods.Length);
        for (int i = 0; i < paramMods.Length; i++)
        {
            parameterModifier[i] = Convert.ToBoolean(paramMods[i]);
        }
        ParameterModifier[] modifiers = new ParameterModifier[1]
        {
            parameterModifier
        };
        return ComType.InvokeMember(MethodName, BindingFlags.InvokeMethod, null, ComInstance, args, modifiers, CultureInfo.CurrentCulture, null);
    }

    public void Dispose()
    {
        Marshal.ReleaseComObject(ComInstance);
    }
}

• 调用1- 登录

         DxComObject dxComObject = new DxComObject("U8Login.clsLogin");
        array = new object[1]
        {
            LoginString
        };
        if (!(bool)dxComObject.DoMethod("ConstructLogin", array))
        {
            throw new Exception("U8登录信息错误！");
        }

         array = new object[8]
        {
            "ST",
            errMsg,
            errMsg,
            errMsg,
            errMsg,
            errMsg,
            errMsg,
            errMsg
        };
        if (!(bool)dxComObject.DoMethod("Login", array))
        {
            throw new Exception(string.Format("登录{0}错误！{1}", "ST", dxComObject["ShareString"].ToString()));
        }

         string text = dxComObject["UfDbName"].ToString();
        string DBUser = string.Empty;
        string DBPassword = string.Empty;
        string text2 = SplitDBInfo(text, out DBUser, out DBPassword);

•   调用2- CO调用

DxComObject dxComObject2 = new DxComObject("USERPCO.VoucherCO");
array = new object[2]
{
dxComObject.ComInstance,
 errMsg
 };
 if (!(bool)dxComObject2.DoMethod("IniLogin", array))
{
 throw new Exception("初始化CO接口失败！" + array.GetValue(1).ToString());
}

...

            if (!(bool)dxComObject2.DoMethod("Insert", array, paramMods))
            {
                throw new Exception("单据保存失败！" + array.GetValue(4).ToString());
            }
            empty = array.GetValue(6).ToString();
            errMsg = "入库单保存成功！";

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