国产探花免费观看_亚洲丰满少妇自慰呻吟_97日韩有码在线_资源在线日韩欧美_一区二区精品毛片,辰东完美世界有声小说,欢乐颂第一季,yy玄幻小说排行榜完本

首頁 > 編程 > .NET > 正文

javascript判斷是否有對RadioButtonList選項選擇

2024-07-10 13:18:04
字體:
來源:轉載
供稿:網友
寫Javascript來判斷是否有對RadioButtonList選項選擇,效果如下:

javascript判斷是否有對RadioButtonList選項選擇


準備好RadioButtonList數據源:
Cosmetic.vb

復制代碼 代碼如下:


Imports Microsoft.VisualBasic
Namespace Insus.NET
Public Class Cosmetic
Private _ID As Integer
Private _Type As String
Private _Name As String
Private _Weight As Decimal
Private _UM As String
Public Property ID As Integer
Get
Return _ID
End Get
Set(value As Integer)
_ID = value
End Set
End Property
Public Property Type As String
Get
Return _Type
End Get
Set(value As String)
_Type = value
End Set
End Property
Public Property Name As String
Get
Return _Name
End Get
Set(value As String)
_Name = value
End Set
End Property
Public Property Weight As Decimal
Get
Return _Weight
End Get
Set(value As Decimal)
_Weight = value
End Set
End Property
Public Property UM As String
Get
Return _UM
End Get
Set(value As String)
_UM = value
End Set
End Property
Public Sub New()
End Sub
Public Sub New(id As Integer, type As String, name As String, weight As Decimal, um As String)
Me._ID = id
Me._Type = type
Me._Name = name
Me._Weight = weight
Me._UM = um
End Sub
Public Function GetData() As List(Of Cosmetic)
Dim o As New List(Of Cosmetic)
Dim c As New Cosmetic(1, "滋潤霜", "玉蘭油", 50, "g")
o.Add(c)
Dim c1 As New Cosmetic(2, "滋潤霜", "雅詩蘭黛", 100, "g")
o.Add(c1)
Dim c2 As New Cosmetic(3, "滋潤霜", " 蘭蔻", 80, "g")
o.Add(c2)
Dim c3 As New Cosmetic(4, "滋潤霜", "歐萊雅", 60, "g")
o.Add(c3)
Dim c4 As New Cosmetic(5, "滋潤霜", "芭比波朗", 120, "g")
o.Add(c4)
Return o
End Function
End Class

End Namespace


在aspx放一個RadioButtonList控件和一個銨鈕:

復制代碼 代碼如下:


化妝品:<asp:RadioButtonList runat="server" RepeatColumns="10" RepeatDirection="Horizontal"></asp:RadioButtonList>
<br />
<asp:Button runat="server" Text="Select" />


在aspx.vb中,為RadioButtonList綁定數據源,當然綁定數據源下面的代碼中,還得引用命名空間 Imports Insus.NET

復制代碼 代碼如下:


Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
If Not IsPostBack Then
Data_Binding()
End If
End Sub
Private Sub Data_Binding()
Dim objCosmetic As New Cosmetic()
Me.RadioButtonListCosmetic.DataSource = objCosmetic.GetData()
Me.RadioButtonListCosmetic.DataTextField = "Name"
Me.RadioButtonListCosmetic.DataValueField = "ID"
Me.RadioButtonListCosmetic.DataBind()
End Sub


接下來是演示開始,寫Javascript代碼:

復制代碼 代碼如下:


View Code
<script type="text/javascript">
function CheckIsSelected() {
var rbl = document.getElementById("<%=RadioButtonListCosmetic.ClientID%>");
var radio = rbl.getElementsByTagName("input");
var isSelect = false;
for (var i = 0; i < radio.length; i++) {
if (radio[i].checked) {
isSelect = true;
break;
}
}
if (!isSelect) {
alert("請選擇一個選項。");
}
return isSelect;
}
</script>


最后是為銨鈕Button寫客戶端事件

復制代碼 代碼如下:


<asp:Button runat="server" Text="Select" OnClientClick="return CheckIsSelected()" />

發表評論 共有條評論
用戶名: 密碼:
驗證碼: 匿名發表
主站蜘蛛池模板: 上杭县| 若尔盖县| 通化县| 遵化市| 宁都县| 德清县| 黑龙江省| 克拉玛依市| 灵丘县| 阳新县| 布拖县| 唐海县| 杭锦旗| 独山县| 康定县| 平舆县| 黑河市| 南江县| 鄂伦春自治旗| 唐山市| 珲春市| 衡山县| 石狮市| 阿荣旗| 广水市| 礼泉县| 五莲县| 新乡市| 垫江县| 怀宁县| 抚州市| 富川| 通州市| 信阳市| 满洲里市| 西藏| 渝中区| 盈江县| 广州市| 军事| 西丰县|