在Javascript的dataList中获取TextBox的引用 [英] Get reference of TextBox inside dataList in Javascript

问题描述

结构像这样，
当我们单击立即预订"按钮时，objDiv可见.我想在a()javascript函数中获取txtSeatNo texbox的引用.

structure is somithing like this,
objDiv gets visible when we click on Book Now button i want to get reference of txtSeatNo texbox in aa() which is a javascript function.

I tried much and went through many of forum  but no use, can any one help me


    <asp:DataList ID="dlObject" runat="server">
        <ItemTemplate>
            <table>
                <tr>
                    <td>
                        <asp:Label ID="lblCompanyName" runat="server" Text='<%#Eval("CompanyName") %>'></asp:Label>
                    </td>
                    <td>
                        <asp:Label ID="lblBusType" runat="server" Text='<%#Eval("ArrangementName") %>'></asp:Label>
                    </td>
                    <td>
                        <asp:Button ID="btnBookNow" runat="server" Text="Book Now" />
                    </td>
                </tr>
                <tr>
                    <td colspan="3">
                        <div visible="false" id="objDiv" runat="server">
                            <table>
                                <tr>
                                    <td>
                                        <img src="Images/somepic.gif" onclick="aa()" />
                                    </td>
                                    <td>
                                        Seat No
                                    </td>
                                    <td>
                                        <asp:TextBox ID="txtSeatNo" runat="server" CssClass="hideBorder" onKeyPress="return false"></asp:TextBox>
                                    </td>
                                </tr>
                            </table>
                        </div>
                    </td>
                </tr>
            </table>
        </ItemTemplate>
    </asp:DataList>


<script>
function aa()
{
var objSeatNo = <pre lang="xml">document.getElementById(&#39;&lt;%=txtSeatNo.ClientID %&gt;&#39;);
objSeatNo
}

&lt;/script&gt;</pre>.value = "5";

推荐答案

hi 试试这个

hi try this

var objSeatNo = <pre lang="xml">document.getElementById(&#39;&lt;%=txtSeatNo.ClientID %&gt;&#39;);

将上面的行更改为

change the above line to

var objSeatNo = document.getElementById("txtSeatNo").val();

您可以将txtSeatNo的值获取为ObjSeatNo.

you can get the value of txtSeatNo to ObjSeatNo.

indx是我保存在标签上的数据列表的选定索引号

indx is the selected index no of datalist which i saved on a lable

var clienttype = document.getElementById('<%=lblDivlastIndx_Itm.ClientID %>').value;
var indx = parseInt(clienttype);
indx=indx+1;

(#ctl00_ContentPlaceHolder1_dlRouts_ctl0" + indx +"_ txtSeatNo").val(新值");

现在可以正常使用了.

("#ctl00_ContentPlaceHolder1_dlRouts_ctl0"+indx+"_txtSeatNo").val(''New Value'');

Now its working fine.

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