主题：web复选框的保存

老师，请教一下，我这样的表结构，web页面怎么保存，表结构如下

此主题相关图片如下：实名制考勤表.jpg

 web页面如下：

此主题相关图片如下：2222.jpg

保存逻辑：复选框哪儿勾选后，如果是2022年5月，当月由这个人考勤数据的，就在对应的日那一列画√，勾选的画×，没有的就新增，5月结束，6月1日就所有人员新增，复选框勾选的，6月1日的考勤数据就是复选框勾选的画√，没勾选的画×

勾选的人员的集合怎么写呢

Dim e As object = args(0)
Dim wb As New weui
wb.AppendHTML("<link rel='stylesheet' href='./weui/exweui.css'/>", True)
wb.AppendHTML("<script src='./weui/exweui.js' ></script>", True)
If e.PostValues.Count = 0 Then
    wb.AddForm("","form1","Rename_checking.htm")
    With wb.AddInputGroup("form1","考勤日期","请选择考勤日期")
        With .AddInput("考勤日期","考勤日期","date")
        End With
    End With
    Dim cdg As ExWeUI.ExCheckGroup = ExWeUI.WebUI.AddCheckGroup("", "在岗人员", "请选择考勤人员")
    Dim drs As  List(of  DataRow) = DataTables("实名制管理").SQLSelect("项目名称 = '" & _Userxmmc & "' and 在岗状态 = '在岗'")
    If drs.Count > 0 Then
        For Each dr As DataRow In drs
            Dim s As String = dr("姓名")
            If s.Length = 2 Then
                Dim s1 As String = s.PadRight(3)
                cdg.add(dr("_Identify"),s1 & "&emsp;")
            Else
                cdg.add(dr("_Identify"),s)
            End If
        Next
        wb.InsertHTML("form1", cdg.BuildHtml)
        wb.AppendHTML("<script>initExWeUI();</script>") '需要注意的是,这里不需要使用true参数
        '添加底部返回及保存按钮
        wb.InsertHTML("<div style='height:50px'></div>")
        wb.AddPage("form1","page1").Attribute = "style='position: fixed;bottom: 0;right: 0;left: 0'" '增加两个page
        With wb.AddButtonGroup("page1","btg1", False)
            .Add("btn1", "返回", ,"", "Rename.htm")
            .Add("btn2", "保存", "button").Attribute = "" '调用js函数上传
        End With
        e.WriteString(wb.Build)
    Else
        With wb.AddMsgPage("","msgpage","提示","该项目还未添加实名制登记人员,不能上报考勤数据!")
            .icon = "info"   '改变图标"success","info","warn",对应的图标分别是
            .AddButton("btn1","返回").Attribute = ""
        End With
        e.WriteString(wb.Build)
        Return Nothing '必须返回
    End If
Else
    Dim d As Date =  e.PostValues("考勤日期")
    If d = Nothing Then
        Return Nothing '必须返回
    End If
    For Each r As WinForm.ListViewRow In lvw.Rows
        Dim dr As DataRow = DataTables("实名制考勤").SQLFind("项目名称 = '" & _Userxmmc & "' and 年 = '" & d.Year & "' and 月 = '" & d.Month & "'")
        If dr Is Nothing Then
            dr = DataTables("实名制考勤").AddNew
            dr("年") = d.Year
            dr("月") = d.Month
            If r.Checked = True
                dr("日" & d.Day) = "√"
            Else
                dr("日" & d.Day) = "×"
            End If
        End If
    Next
End If

还请老师看看，我保存了，但是没有保存成功呢

......

Else

    If e.PostValues.ContainsKey("考勤日期") = False Then  '生成错误提示页
        With wb.AddMsgPage("","msgpage","提示", "考勤日期不能为空!")
            .icon = "Warn" '改变图标
            .AddButton("btn1","返回").Attribute = ""
        End With
        e.WriteString(wb.Build)
        Return Nothing '必须返回
    End If
    Dim lst As new List(of String)
    For Each key As String In e.postvalues.Keys
        If key Like "考勤人员_*" Then
            lst.add(e.postvalues(key))
        End If
    Next
    Dim d As Date =  e.PostValues("考勤日期")
    For Each ss As String In DataTables("实名制管理").SQLGetvalues("项目名称 = '" & _Userxmmc & "' and 在岗状态 = '在岗'")
        Dim dr As DataRow = DataTables("实名制考勤").SQLFind("项目名称 = '" & _Userxmmc & "' and 年 = '" & d.Year & "' and 月 = '" & d.Month & "' and 姓名='" & ss & "'")
        If dr Is Nothing Then
            dr = DataTables("实名制考勤").AddNew
            dr("所属机构") = _UserGroup
            dr("项目名称") = _Userxmmc
            dr("姓名") = ss
            dr("年") = d.Year
            dr("月") = d.Month
        End If
        If lst.contains(ss)
            dr("日" & d.Day) = "√"
        Else
            dr("日" & d.Day) = "×"
        End If
    Next
    DataTables("实名制考勤").Save
    '保存并生成增加成功提示页面
    With wb.AddMsgPage("","msgpage","保存成功", "你是否继续修改其他人员退场信息") '生成成功提示页
        .AddButton("btn1","继续考勤","Rename_checking.htm")
        .AddButton("btn2","首&emsp;&emsp;页","default.htm")
    End With
    e.WriteString(wb.Build)
End If

终于找到了，没注意看老师写的，我开始调试了，就是ss没值为空，没找到问题，问题出在这儿

For Each ss As String In DataTables("实名制管理").SQLGetvalues("项目名称 = '" & _Userxmmc & "' and 在岗状态 = '在岗'")

For Each ss As String In DataTables("实名制管理").SQLGetvalues("姓名", "项目名称 = '" & _Userxmmc & "' and 在岗状态 = '在岗'")