
////验证用户名是否与注册数据库中的重名!!!PrivateSubcheck_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)Handlescheck.ClickDimmyConnectionAsOleDbConnectionDimmyCommandAsOleDbCommandDimdbnameAsStringdbname=Server.MapPath("db1.mdb")myConnection=NewOleDbConnection("PROVIDER=Microsoft.Jet.OLEDB.4.0;DATASource=C:DocumentsandSett...