OLE DB specifies that each provider must provide a dialog box for defining connections to its data sources. Microsoft® SQL Server™ 2000 Analysis Services complies with this requirement by providing a dialog box that enables the client application to connect to an Analysis server or a local cube.
To use this prompt, the Prompt property of the connection string must be set to 1:
Dim Conn As New ADODB.Connection
Conn.Open "Provider=msolap; Prompt=1;"
呵呵，顺手到.Net下来试试，发现在OleDb下可以使用，
OleDbConnection cn = new OleDbConnection( "Provider=SQLOLEDB.1; Prompt=1" );
弹出
将Provider改为Microsoft.Jet.OLEDB.4.0后，显示这样的
呵呵，其他的Provider就没试了。
SQLConnection下面就不可以使用这种方法。
这个方法有两个不好的地方：
1. 弹出的对话框是非模态的；
2. 只要点击取消就会抛出异常；
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