好的,我将自己的Javascript与ASP服务器控件结合起来有点问题。
图片:我的页面上有几个ASP:TextBoxes由转发器创建。我的目标是将用户键入的所有值汇总到这些文本框中。只要用户将某些内容更改为文本框的内容,就必须执行此操作。 (在页面底部我有一个小的价格计算器,它与服务器端代码一起工作,但我想让它更具动态性,我说的是txtTeam和txtPart)
<asp:Content ID="Content3" ContentPlaceHolderID="contentPlaceHolder" runat="Server">
<script type="text/javascript">
</script>
<div id='inputDiv'>
<h1>
Students per team</h1>
<table>
<tr>
<td>
Team
</td>
<td>
Actual
</td>
<td>
Maximum
</td>
</tr>
<asp:Repeater ID="Repeater2" runat="server" DataSourceID="odsTeams">
<ItemTemplate>
<tr>
<td id='td<%# Eval("team_id") %>'>
<%# Eval("name") %>
</td>
<td id='txtTeam<%# Eval("team_id") %>'>
<asp:TextBox ID="txtTeam" runat="server"></asp:TextBox>
<asp:RangeValidator EnableClientScript="true" ID="rgvTeams" runat="server" ErrorMessage="*"
MinimumValue="0" MaximumValue='<%# Eval("st_max") %>' ControlToValidate="txtTeam"></asp:RangeValidator>
</td>
<td id='lblTeam<%# Eval("team_id") %>'>
<asp:Label runat="server">
<%# Eval("st_max") %>
</asp:Label>
</td>
</tr>
</ItemTemplate>
</asp:Repeater>
</table>
<asp:ObjectDataSource ID="odsTeams" runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="GetTeamsByDelegationID" TypeName="ERASTableAdapters.tbl_teamTableAdapter"
OnSelecting="odsTeams_Selecting">
<SelectParameters>
<asp:Parameter Name="delegation_id" Type="Int32" />
</SelectParameters>
</asp:ObjectDataSource>
<h1>
Additional Participants</h1>
<table>
<tr>
<td>
Category
</td>
<td>
Actual
</td>
<td>
Maximum
</td>
</tr>
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="odsParticipantsCat">
<ItemTemplate>
<tr>
<td id='<%# Eval("participant_category_id") %>'>
<%# Eval("name") %>
</td>
<td id='txtPart<%# Eval("participant_category_id") %>'>
<asp:TextBox ID="txtPart" runat="server" Enabled='<%# getMax(Eval("key").ToString()) > 0 %>'></asp:TextBox>
<asp:RangeValidator EnableClientScript="true" ID="rgvPart" runat="server" ErrorMessage="*"
MinimumValue="0" MaximumValue='<%# getMax(Eval("key").ToString())%>' ControlToValidate="txtPart"></asp:RangeValidator>
</td>
<td id='lblPart<%# Eval("participant_category_id") %>'>
<asp:Label runat="server">
<%# getMax(Eval("key").ToString())%>
</asp:Label>
</td>
</tr>
</ItemTemplate>
</asp:Repeater>
<asp:ObjectDataSource ID="odsParticipantsCat" runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="GetAdditionalParticipantCategories" TypeName="ERASTableAdapters.tbl_participant_categoryTableAdapter">
</asp:ObjectDataSource>
</table>
</div>
<h1>
Advance to be paid</h1>
<table>
<tr>
<td>
Number of participants
</td>
<td>
Days
</td>
<td>
Price
</td>
<td>
Total
</td>
</tr>
<tr>
<td runat="server" id="tdNumberPart1">
0
</td>
<td runat="server" id="tdDays1">
0
</td>
<td runat="server" id="tdPrice1">
0
</td>
<td runat="server" id="tdTotal1">
0
</td>
</tr>
<tr>
<td runat="server" id="tdNumberPart2">
0
</td>
<td>
N/A
</td>
<td runat="server" id="tdPrice2">
0
</td>
<td runat="server" id="tdTotal2">
0
</td>
</tr>
<tr>
<td>
</td>
<td>
</td>
<td>
</td>
<td runat="server" id="tdGrandTotal" style="font-weight: bold">
0
</td>
</tr>
</table>
<asp:Button runat="server" ID="btnConfirm" Text="Confirm" OnClick="btnConfirm_Click"
Style="height: 29px" />
<asp:Label runat="server" ID="lblInfo"></asp:Label>
答案 0 :(得分:2)
提供表格ID,例如<table id="students">
和<table id="additional">
。然后,迭代行,找到每行中的输入元素,并在你去的时候对值求和:
function sumTable(id)
{
var count = 0;
var studentTable = document.getElementById(id);
for (var i=1; i in studentTable.rows; i++)
{
var r = studentTable.rows[i];
var input = r.getElementsByTagName("input")[0];
var n = parseFloat(input.value);
if (isFinite(n)) count += n;
}
return count;
}
var totalParticipants = sumTable("students") + sumTable("additional");
答案 1 :(得分:0)
使用像jquery这样的库你可以轻松地选择特定div中的所有输入框(比如你的转发器div),或者你可以专门为这些输入框添加一个类并以这种方式抓取它们。
将函数调用附加到onblur方法,这样当它们离开文本框时,你可以将它们相加。