主题：[求助]按照系统学习的自定义用户，登录老是提示密码错误

按照系统学习的自定义用户，登录老是提示密码错误，点取消后提示错误信息：

 

此主题相关图片如下：未命名.jpg

Afterload事件：

Dim cmd As New SQLCommand
Dim dt As DataTable
Dim cmb As WinForm.ComboBox = e.Form.Controls("UserName")
cmd.C
cmd.CommandText = "SELECT DISTINCT Name From {Users}"
dt = cmd.ExecuteReader()
For Each dr As DataRow In dt.Datarows
    cmb.Items.Add(dr("Name"))
Next
cmb.SelectedIndex = 0

 

确定按钮：

Dim UserName As String = e.Form.Controls("UserName").Value
Dim cmd As New SQLCommand
Dim dt As DataTable
Dim dr As DataRow
cmd.C
If UserName = ""  Then
    Messagebox.show("请选择用户!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)
    Return
End If
cmd.CommandText = "Select * From {Users} Where [Name] = '" & UserName & "'"
dt = cmd.ExecuteReader
If dt.DataRows.Count = 0 Then
    Messagebox.show("此用户不存在!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)
    Return
End If
dr = dt.DataRows(0)
If e.Form.Controls("Password").Value = dr("PassWord") Then
    _UserName = UserName
    _UserGroup = dr("Group")
    e.Form.Close
Else
    Messagebox.show("密码错误!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)

 

取消按钮：

 

此主题相关图片如下：1.jpg


此主题相关图片如下：2.jpg

我重新做个例子没有问题，使用的是ACC，但是我之前这个就不行，重做都不行，外部数据源SQL