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當我註冊使用我在VB.NET開發的系統時,我有這個奇怪的問題,它不允許我使用正確的登錄(在登錄表單中)用戶名和密碼我已註冊。但是,當我在Access數據庫中手動輸入用戶名和密碼時,我設法登錄沒有任何問題。這裏是我登錄的代碼和註冊VB.Net 2013(VB未能搜索訪問數據庫)
登錄
conn = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source= C:\Users\lenovo\Documents\Visual Studio 2012\Projects\SDP user interface\SDP user interface\bin\Debug\SCPdatabase.accdb")
conn.Open()
sql = "Select * FROM Members WHERE Username ='" & txtusername.Text & "' AND [Password] ='" & txtpassword.Text & " ' "
cmd = New OleDbCommand(sql, conn)
dr = cmd.ExecuteReader()
If dr.HasRows Then
MessageBox.Show("Login Success")
Me.Hide()
Member_Page.Show()
Member_Page.lblwelcome.Text = "Welcome" & txtusername.Text
Else
MessageBox.Show("Login Failed")
End If
dr.Close()
conn.Close()
註冊
Dim flag As Integer
MyConn.Open()
sql = "Insert INTO Members (Username,[IC],Email,PhoneNumber,FullName,[Password],Newsletter) values (' " & txtusername3.Text & "','" & txtic3.Text & "','" & txtemail3.Text & "','" & txtphone3.Text & "','" & txtname3.Text & "', ' " & txtpwd3.Text & " ',' " & cmb3.Text & " ')"
cmd = New OleDbCommand(sql, MyConn)
flag = cmd.ExecuteNonQuery()
If flag > 0 Then
MessageBox.Show(flag & " records added", "Add Records Successful", MessageBoxButtons.OK, MessageBoxIcon.Information)
End If
MyConn.Close() 'closes the connection
請諮詢日Thnx
謝謝!快速解決了我的問題。 –