Phanix’s view about Eat, Travel, Photo, C.S., Wine, Culture, etc.

The recent days after back to TW

Just wake up from noon break, I think I have to write down some day-to-day things.

C# 建立ODBC DSN 連線到 SQL Server

那個\0很重要。 using System.Runtime.InteropServices; public bool DoDBConnect(string strDSN,string strUID,string strPWD) { try { strConn = “DSN=” + strDSN + “;UID=” + strUID + “;PWD=” + strPWD + “;”; cn = new OdbcConnection(strConn); cmd = new OdbcCommand(); adp = new OdbcDataAdapter(); cmd.CommandType = CommandType.Text; cmd.Connection = cn; } catch { return false; } return true; } [ […]

在C#中define struct並以 .dll 方式給C++用

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| 學習工作, 程式

原本以為在 C# 中使用 struct 又要匯出成 .dll 給 c++ 需要有什麼特殊處理，結果發現其實不用… namespace TESTCOMObject { //其他程式碼 //… public struct tag_Data { public string strName; public string strValue; } } 而在 C++ 裡頭要使用就只要 import 之後就可以放心用了 TESTCOMObject::tag_Data aa[50]; aa[7].strName = “xxabc”; aa[7].strValue = “oo”; aa[17].strName = “xxabcyy”; aa[17].strValue = “oo”; TESTCOMObject::tag_Data bb; bb.strName = “hahaha”; bb.strValue = “hehehe”;