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----  移动开发，多个按键判断输入值是否有效  (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=109027)

--  作者：qwz405
--  发布时间：2017/11/2 21:08:00
--  移动开发，多个按键判断输入值是否有效

如下所示代码，有2个或以上按键时，如果判断输入值的是否有效，并进行下一步。(下面的代码，能判断输入值并作出提示，当输入值有效时不能继续下去)

....
If e.PostValues.Count = 0 Then

Dim dr As DataRow = DataTables("设备点检").SQLFind("[编号]= \'"& str2 &"\'")
If dr IsNot Nothing Then

wb.AddTopTips("","toptip1","未按要求填写数据!") \'用于显示动态错误提示

wb.AddForm("","form1","./bb.htm?tp=" & tp & "&str=" & str)

With wb.AddInputGroup("form1","ipg1","设备名称")
With .AddTextArea("设备名称",1)
.Value = dr("设备名称")
.Readonly = True
End With
End With

With wb.AddInputGroup("form1","ipg2","编号")
With .AddTextArea("编号",1)
.Value = dr("编号")
.Readonly = True
End With
End With

If tp2 = "ysj"

With wb.AddInputGroup("form1","ipg10","点检项目(必填)")
.AddSelect("txt1","周边环境","|正常|异常")
End With

With wb.AddButtonGroup("form1","btg1",False)
With .Add("btn1","存档1","button")
.Kind = 2
.Attribute= "o n click=\'getcheck1()\'" \'调用js函数上传
End With
.Add("btn4", "退出").Attribute = "o n c lick = ""WeixinJSBridge.call(\'closeWindow\')"""
End With

ElseIf tp2 = "kt" Then

With wb.AddInputGroup("form1","ipg11","点检项目(必填)")
.AddSelect("txt1","机台外观","|正常|异常")
.AddSelect("txt2","面板功能","|正常|异常")
End With

With wb.AddButtonGroup("form1","btg1",False)
With .Add("btn1","存档2","button")
.Kind = 2
.Attribute= "o n click=\'getcheck2()\'" \'调用js函数上传
End With
.Add("btn4", "退出").Attribute = "o n c lick = ""WeixinJSBridge.call(\'closeWindow\')"""
End With
End If
End If

wb.AppendHTML("<script src=\'./lib/check.js\'></script>")

Else \'保存数据

.....

End If
e.WriteString(wb.Build) \'生成网页

js代码如下所示：
function getcheck1(){
var v1 = document.getElementById("txt1").value;
if (v1){return true}
show("toptip1",2500); //2500毫秒=2.5秒
return false;
}

function getcheck2(){
var v1 = document.getElementById("txt1").value;
var v2 = document.getElementById("txt2").value;
if (v1 && v2){return true}
show("toptip1",2500); //2500毫秒=2.5秒
return false;
}

[此贴子已经被作者于2017/11/2 21:09:24编辑过]

--  作者：有点甜
--  发布时间：2017/11/2 23:19:00
--
没看到你表达的意思，你要做什么功能？浏览器那里报什么错？

--  作者：qwz405
--  发布时间：2017/11/3 8:30:00
--
老师，早上好。

...
If e.PostValues.Count = 0 Then

Dim dr As DataRow = DataTables("设备点检").SQLFind("[编号]= \'"& str2 &"\'")
If dr IsNot Nothing Then

wb.AddTopTips("","toptip1","未按要求填写数据!") \'用于显示动态错误提示
wb.AddForm("","form1","./bb.htm?tp=" & tp & "&str=" & str)
...
If tp2 = "ysj"
With wb.AddInputGroup("form1","ipg10","点检项目(必填)")
.AddSelect("txt1","周边环境","|正常|异常")
End With
With wb.AddButtonGroup("form1","btg1",False)
With .Add("btn1","存档1","button") --->调用js函数getcheck1，若txt1有值，则允许保存数据。
.Kind = 2
.Attribute= "o n click=\'getcheck1()\'"
End With
.Add("btn4", "退出").Attribute = "o n c lick = ""WeixinJSBridge.call(\'closeWindow\')"""
End With

ElseIf tp2 = "kt" Then
With wb.AddInputGroup("form1","ipg11","点检项目(必填)")
.AddSelect("txt1","机台外观","|正常|异常")
.AddSelect("txt2","面板功能","|正常|异常")
End With
With wb.AddButtonGroup("form1","btg1",False)
With .Add("btn1","存档2","button") --->调用js函数getcheck2，若txt1/txt2有值，则允许保存数据。
.Kind = 2
.Attribute= "o n click=\'getcheck2()\'"
End With
.Add("btn4", "退出").Attribute = "o n c lick = ""WeixinJSBridge.call(\'closeWindow\')"""
End With
End If
End If

wb.AppendHTML("<script src=\'./lib/check.js\'></script>")
Else

.....-->进入到这一步，保存传递过来的数据

End If
e.WriteString(wb.Build) \'生成网页

如果我根据tp2值拆分多个网页，这样判断1个按键是否有效值，我用下面的代码，一直都可以的：
但如果tp2值多的话，就要重复写很多代码。
...
If e.PostValues.Count = 0 Then \'如果是首次登陆,生成用户留言网页

Dim dr As DataRow = DataTables("设备点检").SQLFind("[编号]= \'"& str2 &"\'") \'获得点检设备数据
If dr IsNot Nothing Then

wb.AddTopTips("","toptip1","未按要求填写数据!") \'用于显示动态错误提示

wb.AddForm("","form1","./bb.htm?tp=" & tp & "&str=" & str).Attribute="o n submit = \'return getcheck1()\'" \'使用js脚本文件,判断是否按要求输入数据

.....
\'If tp2 = "ysj"

With wb.AddInputGroup("form1","ipg10","点检项目(必填)")
.AddSelect("txt1","周边环境","|正常|异常")
End With

With wb.AddButtonGroup("form1","btg1",False)
.Add("btn1", "存档","submit").Kind = 2
.Add("btn4", "退出").Attribute = "o n click = ""WeixinJSBridge.call(\'closeWindow\')""" \'退出微信浏览器
End With

\'ElseIf tp2 = "kt" Then

\'With wb.AddInputGroup("form1","ipg10","点检项目(必填)")
\' .AddSelect("txt1","机台外观","|正常|异常")
\'.AddSelect("txt2","面板功能","|正常|异常")
End With

\'With wb.AddButtonGroup("form1","btg1",False)
\' .Add("btn1", "存档","submit").Kind = 2
\' .Add("btn4", "退出").Attribute = "o n click = ""WeixinJSBridge.call(\'closeWindow\')""" \'退出微信浏览器
\' End With

\' end if
end if

wb.AppendHTML("<script src=\'./lib/tl_check.js\'></script>") \'引入脚本文件

Else

...
End If
e.WriteString(wb.Build) \'生成网页

[此贴子已经被作者于2017/11/3 8:37:05编辑过]

--  作者：有点甜
--  发布时间：2017/11/3 8:49:00
--

你要问的是如何判断值是否为空？

var v1 = document.getElementById("txt1").value;
var v2 = document.getElementById("txt2").value;
if (v1 != "" && v2 != ""){return true}

[此贴子已经被作者于2017/11/3 8:49:24编辑过]

--  作者：qwz405
--  发布时间：2017/11/3 9:20:00
--

老师，我是要实现这样的功能：根据上面代码的tp2值，会生成不同的页网，会有不同的数量的值要判断

比如 tp2 = "ysj" 时
With wb.AddInputGroup("form1","ipg10","点检项目(必填)")
.AddSelect("txt1","周边环境","|正常|异常")
End With
要判断txt1是否有效

如果 tp2 = "kt"时
With wb.AddInputGroup("form1","ipg10","点检项目(必填)")
\'.AddSelect("txt1","机台外观","|正常|异常")
.AddSelect("txt2","面板功能","|正常|异常")
End With
要判断txt1/txt是否有效

又比如tp2=***时
With wb.AddInputGroup("form1","ipg10","点检项目(必填)")
.AddSelect("txt1","周边环境","|正常|异常")
.AddSelect("txt2","周边环境","|正常|异常")
.AddSelect("txt3","周边环境","|正常|异常")
End With
我可能只需要txt3一定有值，但txt1/txt2如果有值，就不能超过4个字符。。

等等。

[此贴子已经被作者于2017/11/3 9:20:07编辑过]

--  作者：有点甜
--  发布时间：2017/11/3 9:29:00
--

既然是不同的页面，不同的判断，那就分开来比较，就好像你上面那样写多个函数分别判断。

你现在哪里无法实现？想怎样做？

--  作者：qwz405
--  发布时间：2017/11/3 10:01:00
--

...
If e.PostValues.Count = 0 Then

Dim dr As DataRow = DataTables("设备点检").SQLFind("[编号]= \'"& str2 &"\'")
If dr IsNot Nothing Then

wb.AddTopTips("","toptip1","未按要求填写数据!") \'用于显示动态错误提示
wb.AddForm("","form1","./bb.htm?tp=" & tp & "&str=" & str)
...
If tp2 = "ysj"
With wb.AddInputGroup("form1","ipg10","点检项目")
.AddSelect("txt1","周边环境","|正常|异常") \'必填
End With
With wb.AddButtonGroup("form1","btg1",False)
With .Add("btn1","存档1","button")
.Kind = 2
.Attribute= "o n click=\'return getcheck1()\'"   --->调用js函数getcheck1，能判断输入值是否有效，但当输入有效时，不能跳转下页
End With
End With

ElseIf tp2 = "kt" Then
With wb.AddInputGroup("form1","ipg11","点检项目")
.AddSelect("txt1","机台外观","|正常|异常") \'选项，小于3字符
.AddSelect("txt2","面板功能","|正常|异常") \'必填
End With
With wb.AddButtonGroup("form1","btg1",False)
With .Add("btn1","存档2","button")
.Kind = 2
.Attribute= "o n click=\'return getcheck2()\'"   --->调用js函数getcheck2，能判断输入值是否有效，但当输入有效时，不能跳转下页
End With
End With
End If
End If
wb.AppendHTML("<script src=\'./lib/check.js\'></script>")
Else
...
End If
e.WriteString(wb.Build) \'生成网页

js代码如下所示：
function getcheck1(){
var v1 = document.getElementById("txt1").value;
if (v1){return true}
show("toptip1",2500); //2500毫秒=2.5秒
return false;
}

function getcheck2(){
var v1 = document.getElementById("txt1").value;
var v2 = document.getElementById("txt2").value;
if (v1.length < 3 && v2){return true}
show("toptip1",2500); //2500毫秒=2.5秒
return false;
}

[此贴子已经被作者于2017/11/3 10:48:11编辑过]

--  作者：qwz405
--  发布时间：2017/11/3 10:54:00
--

老师，提交按钮改成这样，测试可以提交数据了。。我先这样用，有问题再请教。。。

With wb.AddButtonGroup("form1","btg1",False)
With .Add("btn1","存檔2","submit")
.Kind = 2
.Attribute= "o n c lick=\'return getcheck1()\'" \'调用js函数上传
End With

[此贴子已经被作者于2017/11/3 10:54:54编辑过]