用户注册vbnet 用户注册页面html代码

VB.NET 注册代码

写两个函数，一个检测是否有重复用户，第二个插入

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检测属用户是否存在

private function checkUser(byval uname as string) as boolean

dim sql as string = "select * from [user] where username=" uname

dim cmd as sqlcommand = new sqlcommand(sql,conn)

dim read as sqldatareader = cmd.excutereader

dim result as boolean = read.hasrows

cmd=nothing

return result

end function

新增用户

private sub adduser(byval uname as string,byval password as string)

if checkUser(uname)

messagebox.show("用户已存在")

exit sub

end if

try

dim sql as string = "insert into [user](username,password) values(@uname,@upass)"

dim cmd as sqlcommand = new sqlcommand(sql,conn)

cmd.parameters.add("@uname",sqldbtype.varchar).value=uname

cmd.parameters.add("@upass",sqldbtype.varchar).value=password

cmd.ExecuteNonQuery

cmd=nothing

messagebox.show("用户添加成功！")

catch ex As Exception

messagebox.show("用户添加失败！" + ex.message)

end try

end sub

vb.net 注册问题

改为：

sql = "insert into 表1 values(用户名='" TextBox1.Text "' ,密码='" TextBox2.Text "')"

vb.net+access如何进行用户注册，textbox1用户名，textbox2密码。点注册后用什么代码存入数据库

Dim StrCon1 As String

Dim Con1 As New System.Data.OleDb.OleDbConnection

dim Cmd1 as System.Data.OleDb.OleDbCommand

dim tkSQL as String

Strcon1="Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" "D:\TEMP.ACCDB" "'"

'数据库连接字符串，指向您数据库

Con1.ConnectionString=StrCon1

Con1.Open

tkSQL="INSERT INTO UserList (UserName,PW) Values('" Me.TxtText1.Text "','" Me.TxtText2.Text "')"

'SQL语句,内容与您的数据库中对应

Cmd1=New System.Data.OleDb.OleDbCommand(tkSQL,Con1)

cmd1.ExecuteNonQuery

'执行

'以下向Combobox中添加Item

Dim DA1 As System.Data.OleDb.OleDbDataAdapter

dim DT1 as new System.Data.DataTable

Dim T1 As Integer

tkSQL="SELECT * FROM UserList"

DA1=New System.Data.OleDb.OleDbDataAdapter(tkSQL,con1)

DA1.Fill(DT1)

For T1=0 To dt1.Rows.Count-1

me.comboBox1.Items.Add(Dt1.Rows(T1)(0))

Next T1

Con1.Close

vb.net怎么写注册代码

Private Sub 提交_Click()

Dim stemp As String

Dim rs As ADODB.Recordset

Set rs = New ADODB.Recordset

stemp = "select * from user"

rs.Open stemp, CurrentProject.Connection, adOpenKeyset, adLockOptimistic

If Me!密码 确认密码 Then

MsgBox "两次输入的密码不一致，请重新输入", vbExclamation, "Error"

Exit Sub

Else

stemp = "insert into user"

stemp = stemp "(用户名，密码，身份证号)"

stemp = stemp " values('" Me!用户名 "','" Me!密码 "','" Me!身份证号 "')"

DoCmd.RunSQL stemp1

Set rs = Nothing

End If

MsgBox "The information of register have saved already!", vbExclamation, "information"

End Sub

求教vb.net用户注册功能大概应该怎么实现。

你去学习如何建立窗体，如何调出窗体，隐藏窗体，等等，就可以了。如果这个些不会，你就没法做成注册的。