AE 连接SDE问题（VC）

<P>刚准备用VC+AE开始做一个数据库管理系统，先测试连接SDE。代码如下：</P>
<P>void CCONNECTDlg::OnButton1() <BR>{</P>
<P>::CoInitialize(NULL);<BR> <BR> IWorkspaceFactoryPtr pWorkspaceFactory;<BR> IWorkspacePtr  pWorkspace; <BR> pWorkspace.CreateInstance(CLSID_Sde4Workspace);<BR> pWorkspaceFactory.CreateInstance(CLSID_SdeWorkspaceFactory);</P>
<P> IPropertySetPtr pPropertySet;<BR> pPropertySet.CreateInstance(CLSID_PropertySet);<BR>          <BR> CString server = "zjk";<BR> CString service = "esri_sde";<BR> CString database = "ts";<BR> CString user = "sde";<BR> CString password = "sde";<BR> CString version = "sde.default"</P>
<P>pPropertySet->SetProperties(CComVariant("SERVER"),CComVariant( server));<BR>pPropertySet->SetProperty(CComBSTR("INSTANCE"),CComVariant(service));      <BR>pPropertySet->SetProperty(CComBSTR("DATABASE"),CComVariant(database));<BR>pPropertySet->SetProperty(CComBSTR("USER"),CComVariant(user));<BR>pPropertySet->SetProperty(CComBSTR("PASSWORD"),CComVariant(password));<BR>pPropertySet->SetProperty(CComBSTR("VERSION"),CComVariant(version));</P>
<P>HRESULT hr=pWorkspaceFactory->Open(pPropertySet,NULL,;pWorkspace);</P>
<P><BR>              if(FAILED(hr))<BR>                          {<BR>                           <BR>                          MessageBox("连接不上SDE  ");<BR>                          <BR>                          }    </P>
<P>}</P>
<P>但是返回的hr值为-2147216021，为什么不正确？我的所有服务是开启的，并且也引入了esriDatasourceGDB库。（用ARCATOLOG按照上面的参数可以连接上SDE）。请高手指教，不胜感激。</P>

<P>pWorkspace.CreateInstance(CLSID_Sde4Workspace);</P>
<P>去掉这行</P>

<P>还是不行</P>
<P>是不是产品许可初始化的问题?</P>

<P>pPropertySet->SetProperties(CComVariant("SERVER"),CComVariant( server));</P>
<P>//确认吗？<BR>pPropertySet->SetProperties(<STRONG>CComVariant</STRONG>("SERVER"),CComVariant( server));</P>

pPropertySet-><STRONG>SetProperty</STRONG>(<STRONG>CComBSTR</STRONG>("SERVER"),CComVariant( server));

<P>问题已解决。原来是没有加入Lience control 控件 。</P>

ok<img src="images/post/smile/dvbbs/em01.gif" />