asp.net中隐藏字段的条件值

Question

这是我的单选按钮列表的 ASP 标记

<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
    <ContentTemplate>

        <asp:RadioButtonList ID="rbcourse" runat="server" AutoPostBack="True" Height="54px" RepeatDirection="Horizontal" style="text-align: left; font-weight: 700;" Width="385px">
            <asp:ListItem >BA</asp:ListItem>
            <asp:ListItem>BSC</asp:ListItem>
            <asp:ListItem>BSCN</asp:ListItem>
            <asp:ListItem>BCOM</asp:ListItem>
        </asp:RadioButtonList>
   </ContentTemplate>

</asp:UpdatePanel>

这是隐藏字段的标记

<asp:HiddenField ID="hffee" runat="server" Value="122" />

这是hffee的sql添加参数值

cmd.Parameters.AddWithValue("@hffee", Val(hffee.Value))

现在我需要如果用户在 BA 单选列表项上单击说 HFFEE 的值，它是隐藏字段并且其属性值设置为 nill 如果用户选择 BSC，则应说 1200，那么 hffee 的值应为 1500 i nut shell 我需要隐藏字段的动态值，它将在 btn 提交时存储在 sql server 上

我正在更改此单选按钮列表上的复选框，例如启用禁用检查真假等 在事件 rbcourse_selected 索引更改的 v.b 代码上，这是单选按钮列表 我只是在写

Protected Sub rbcourse_SelectedIndexChanged(sender As Object, e As EventArgs) Handles rbcourse.SelectedIndexChanged

    If rbcourse.SelectedIndex = "0" Then (0 is the item value of BA)
        ge.Checked = True  (ge is the text name of check box and it is working)

我需要同样的方式

If rbcourse.SelectedIndex = "0" Then (0 is the item value of BA)
 then 

hffe.value="1200" 这样

Answer 1

这是我尝试并在按钮点击时获得费用：

Enum AdmissionFee
    BA = 1200
    BSC = 1800
    BSCN = 2100
    BCOM = 2500
End Enum

Protected Sub rbcourse_SelectedIndexChanged(sender As Object, e As EventArgs) Handles rbcourse.SelectedIndexChanged
    If rbcourse.SelectedIndex = "0" Then
        Me.hffee.Value = Convert.ToString(AdmissionFee.BA)
    ElseIf rbcourse.SelectedIndex = "1" Then
        Me.hffee.Value = Convert.ToString(AdmissionFee.BSC)
    ElseIf rbcourse.SelectedIndex = "2" Then
        Me.hffee.Value = Convert.ToString(AdmissionFee.BSCN)
    ElseIf rbcourse.SelectedIndex = "3" Then
        Me.hffee.Value = Convert.ToString(AdmissionFee.BCOM)
    End If
End Sub

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim fee As Integer
    fee = Convert.ToInt32(Me.hffee.Value)

    If Me.RdoGender.SelectedIndex = "1" Then
        fee += 750
    End If

    If Me.FE.Checked Then
        fee += 110
    End If

    If Me.dropboard.SelectedIndex > 0 Then
        fee += 100
    End If
End Sub

这是你要找的吗？