我需要帮助在“登录表单"中添加锁定系统.我的下面的代码.谢谢. [英] I need help adding a lock out system in my Login Form. My Code Below. Thanks.
问题描述
公共类Form1
暗淡尝试为整数
私有Sub btnLogin_Click(ByVal发送者为System.Object,ByVal e为System.EventArgs)处理btnLogin.Click
如果txtUsername.Text ="Kklgmh2016id"; txtPassword.Text ="Di-wifr246"然后
MsgBox(您现在已登录",MsgBoxStyle.Information,登录")
其他
如果txtUsername.Text ="和txtPassword.Text ="然后
MsgBox(找不到用户名和/或密码!",MsgBoxStyle.Critical,错误")
其他
如果txtUsername.Text ="然后
MsgBox(找不到用户名!",MsgBoxStyle.Critical,错误")
其他
如果txtPassword.Text ="然后
MsgBox(找不到密码!",MsgBoxStyle.Critical,错误")
其他
MsgBox(无效的用户名和/或密码!",MsgBoxStyle.Critical,错误")
如果结束
如果结束
如果结束
如果结束
结束子
私有Sub btnExit_Click(ByVal发送者为System.Object,ByVal e为System.EventArgs)处理btnExit.Click
结束
结束子
结束类
Public Class Form1
Dim attempts As Integer
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
If txtUsername.Text = "Kklgmh2016id" And txtPassword.Text = "Di-wifr246" Then
MsgBox("You Are Now Logged In", MsgBoxStyle.Information, "Login")
Else
If txtUsername.Text = "" And txtPassword.Text = "" Then
MsgBox("No Username and/or Password Found!", MsgBoxStyle.Critical, "Error")
Else
If txtUsername.Text = "" Then
MsgBox("No Username Found!", MsgBoxStyle.Critical, "Error")
Else
If txtPassword.Text = "" Then
MsgBox("No Password Found!", MsgBoxStyle.Critical, "Error")
Else
MsgBox("Invalid Username And/Or Password!", MsgBoxStyle.Critical, "Error")
End If
End If
End If
End If
End Sub
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
End
End Sub
End Class
推荐答案
也许在无效密码分支使用退出.
Maybe use Exit at the Invalid password branch.
类似
Else
MsgBox(无效的用户名和/或密码!",MsgBoxStyle.Critical,错误") Application.Exit
MsgBox("Invalid Username And/Or Password!", MsgBoxStyle.Critical, "Error") Application.Exit
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