如何验证用户名，密码

[huxianming123]

如何用C#验证用户名，密码？

[Avoid]

与数据库里的用户民密码去匹配

[huxianming123]

在一个页面中有TextBox1.TextBox2怎么判断用户名，密码是否输入正确？

[huxianming123]

初学者，代码怎么写

[AhJo]

如ls所说……

[46539492]

sub login_click(sender as object, e as eventargs)
if username.text="" or userpass.text="" then
response.write("<script language='javascript'>alert('请输入完整的登陆信息！')<" & chr(47) & "script>")
else
dim theuserpass as string
theuserpass=formsauthentication.hashpasswordforstoringinconfigfile(userpass.text,"SHA1")

dim strcnn as string=system.configuration.configurationsettings.appsettings("strcnn")
dim strsql as string="select username,userpass from usersheet where username='" & username.text & "' and userpass='" & theuserpass & "'"
dim cmd as oledbcommand
dim cnn as oledbconnection
dim dr as oledbdatareader
cnn=new oledbconnection(strcnn)
cnn.open()
cmd=new oledbcommand(strsql,cnn)
dr=cmd.executereader()
if dr.read()
dim cookie as httpcookie=new httpcookie("sitecookie")
cookie.values.add("mycookie",dr.getstring(0).tostring())
response.appendcookie(cookie)
response.redirect("user_admin.aspx")
else
response.write("<script language='javascript'>alert('您输入的密码，帐号不对,请重新输入！')<" & chr(47) & "script>")
end if
cnn.close()
cnn=nothing
dr=nothing
cmd=nothing
end if

end sub
sub register_click(sender as object, e as eventargs)
response.redirect("register.aspx")
end sub

[huxianming123]

我是用的C#写的啊