subject_37999.htm

一些关于vc的问答

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序号：37999 发表者：萧七 发表日期：2003-04-30 00:38:15
<br>主题：关于ADO的问题，请帮忙看看...
<br>内容：_bstr_t strCon（"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\My ocuments\Study\ADOTest\Data\dbtest.mdb;Persist Security Info=True"）;<BR><BR>HRESULT hr=S_OK;<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>hr=CoInitialize(NULL);&nbsp;&nbsp;&nbsp;&nbsp;<BR>if (hr==S_FALSE)<BR>{<BR>&nbsp;&nbsp; AfxMessageBox(_T("COM Library init unsuccessfully!"));<BR>&nbsp;&nbsp; return FALSE;<BR>}<BR>hr=m_pcnTest.CreateInstance(__uuidof(ADODB::Connection));<BR>if (hr!=S_OK)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>{<BR>&nbsp;&nbsp;AfxMessageBox(_T("Create instance unsuccessfully!"));<BR>&nbsp;&nbsp;return FALSE;&nbsp;&nbsp;&nbsp;&nbsp;<BR>}<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>try<BR>{<BR>&nbsp;&nbsp;m_pcnTest-&gt;Open(strCon,"","",-1);<BR>}<BR><BR>catch(_com_error &amp;e)&nbsp;&nbsp;&nbsp;&nbsp;<BR>{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <BR>&nbsp;&nbsp;AfxMessageBox(e.ErrorMessage()); <BR>}<BR><BR>就这么几行代码，为什么在Open的时候总提示说“未确定错误”呀，请大家帮忙看看，指点一条明路，谢谢了！
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<font color=red>答案被接受</font><br>回复者：iwill 回复日期：2003-04-30 08:42:45
<br>内容：一个显而易见的错误就是:路径中\-&gt;\\
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回复者：萧七 回复日期：2003-05-01 03:26:43
<br>内容：谢谢iwill!
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