小编Ras*_*ats的帖子

背景信息:
我正在构建一个SCADA系统,它运行在VBA上,我寻求C#的一些功能.我在C#中构建了一个DLL库,并获得了在DLL和VBA之间流动的基本数据.

[ComVisible(true), ClassInterface(ClassInterfaceType.AutoDual)]
public class BE_Log
{
    public string DateTime
    {
        [return: MarshalAs(UnmanagedType.BStr)]
        get;
        [param: MarshalAs(UnmanagedType.BStr)]
        set;
    }
    public string User
    {
        [return: MarshalAs(UnmanagedType.BStr)]
        get;
        [param: MarshalAs(UnmanagedType.BStr)]
        set;
    }
    public string SCADA
    {
        [return: MarshalAs(UnmanagedType.BStr)]
        get;
        [param: MarshalAs(UnmanagedType.BStr)]
        set;
    }
    public string Tag
    {
        [return: MarshalAs(UnmanagedType.BStr)]
        get;
        [param: MarshalAs(UnmanagedType.BStr)]
        set;
    }
    public string Area1
    {
        [return: MarshalAs(UnmanagedType.BStr)]
        get;
        [param: MarshalAs(UnmanagedType.BStr)]
        set;
    }
    public string Area2
    {
        [return: MarshalAs(UnmanagedType.BStr)]
        get;
        [param: MarshalAs(UnmanagedType.BStr)]
        set;
    }
    public string Description
    {
        [return: MarshalAs(UnmanagedType.BStr)] …