主题：移动开发端 如何实现判断AddInput不为空时，允许点击登录呢？

用js做一下校验吧，如

Select Case e.Path
    Case "test.htm", ""
        Dim wb As New WeUI
        wb.AddPageTitle("","pageheader","案件流程推送","由瓮安县人民检察院李孝春设计开发")
        If e.PostValues.ContainsKey("username") AndAlso e.PostValues.ContainsKey("password")  Then '判断是否是验证失败后的重新登录
            wb.AddTopTips("","toptip1","用户名或密码错误!").msec = 2000 '如果用户通过登录按钮访问,则给用户一个2秒的提示.
        End If
        wb.AddForm("","form1","logon.htm")
        With wb.AddInputGroup("form1","ipg1")
            .AddInput("username","户名","text")
            .AddInput("password","密码","password")
        End With
        With wb.AddButtonGroup("form1","btg1",True)
            .Add("btn1", "登录", "button").Attribute = "onclick=""if(username.value=='' || password.value==''){alert('不能为空');}else{alert('提交'); form1.submit();}"""
        End With
        With wb.AddPageFooter("","pf1","Copyright © 贵州省瓮安县人民检察院")
            '.AddLink("底部链接","http://www.foxtable.com")
        End With
        e.WriteString(wb.Build)
End Select