使用vb中的adodc控件找到你的access数据源,把它的路径复制下来
在引用找adodb把这个引用过来如下:
Public conn As New ADODB.Connection
Dim rs_load As New ADODB.Recordsetconn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\school.mdb;Persist Security Info=False"
conn.Open
If Trim(txtname.Text) = "" Then '判断输入的用户名是否为空
MsgBox "没有这个用户", vbOKOnly + vbExclamation, ""
txtname.SetFocus
Else
strname = Trim(txtname.Text)
sql = "select * from users where username='" & strname & "'"
rs_load.Open sql, conn, 3, 2, -1
If rs_load.EOF = True Then
MsgBox "没有这个用户", vbOKOnly + vbExclamation
txtname.SetFocus
Else
If Trim(rs_load.Fields(1)) = Trim(txtpwd.Text) Then
user1 = txtname.Text
user_descrip = rs_load.Fields(2)
conn.Close
Unload Me
mdi.Show
Else
MsgBox "密码不正确", vbOKOnly + vbExclamation, "警告"
txtpwd.SetFocus
conn.Close
End If
End If
End If
num = num + 1
If num = 3 Then
Unload Me
End If