不使用COM组件弹出数据库连接对话框

今天查SQL Server帮助文件时,刚好点击到Using the OLE DB Connection Dialog Box页面。

Using the OLE DB Connection Dialog Box

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  

![](http://dev.csdn.net/article/60/C:/Documents and Settings\\Phoenix Chen\\Desktop\\1.bmp)  
将Provider改为Microsoft.Jet.OLEDB.4.0后,显示这样的  
  
![](http://dev.csdn.net/article/60/C:/Documents and Settings\\Phoenix Chen\\Desktop\\2.bmp)  
  
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;  
![](http://blog.csdn.net/Emoticons/teeth_smile.gif)
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