详解Asp.Net母版页元素ID不一致的体现
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2022-06-20 10:36:37
本文介绍了asp.net母版页元素id不一致的体现,分享给大家,具体如下;
<%@ page language="c#" masterpagefile="~...
本文介绍了asp.net母版页元素id不一致的体现,分享给大家,具体如下;
<%@ page language="c#" masterpagefile="~/masterpage.master" theme="style" autoeventwireup="true" codefile="r_balance.aspx.cs" inherits="report_r_balance" %> <asp:content id="content" contentplaceholderid="maincontent" runat="server"> <form id="form1" runat="server"> <div> <table cellspacing="0" cellpadding="0" border="0"> <tbody> <tr> <td> <asp:label id="lbpagename" runat="server" skinid=" " text="余额统计"></asp:label> </td> </tr> <tr> <td> <asp:imagebutton id="btnprint" runat="server" skinid="b_print" ="btnprint_click" /> <asp:imagebutton id="btnexport" runat="server" skinid="b_export" ="btnexport_click" /> </td> </tr> </tbody> </table> <!--结束功能条--> <table border="1" style="font: 宋体; font-size: 12px;"> <tr> <td style="width: 256px; height: 15px;"> 卡号*</td> <td colspan="1" style="width: 233px; height: 15px"> <asp:textbox id="txtc_printno" runat="server"></asp:textbox></td> <td colspan="1" style="height: 24px; font-size: 14px; font-family: 宋体; width: 180px;" > <asp:imagebutton id="nsearch" runat="server" alternatetext="查询" imagealign="middle" imageurl="~/images/go.gif" ="nsearch_click" /> </td> </tr> </table> ....
生成的html代码:
<form name="aspnetform" method="post" action="r_balance.aspx" id="aspnetform"> <table cellspacing="0" cellpadding="0" border="0"> <tbody> <tr> <td> <span id="ctl00_maincontent_lbpagename" style="display:inline-block;color:#f2f3f9;border-style:none;font-family:宋体;font-size:13px;height:22px;">余额统计</span> </td> </tr> <tr> <td> <input type="image" name="ctl00$maincontent$btnprint" id="ctl00_maincontent_btnprint" src="../app_themes/style/images/b_print.jpg" ="return np();" style="border-style:ridge;border-width:0px;" /> <input type="image" name="ctl00$maincontent$btnexport" id="ctl00_maincontent_btnexport" src="../app_themes/style/images/b_export.jpg" style="border-style:ridge;border-width:0px;" /> </td> </tr> </tbody> </table> <!--结束功能条--> <table border="1" style="font: 宋体; font-size: 12px;"> <tr> <td style="width: 256px; height: 15px;"> 卡号*</td> <td colspan="1" style="width: 233px; height: 15px"> <input name="ctl00$maincontent$txtc_printno" type="text" id="ctl00_maincontent_txtc_printno" style="width:120px;height:16px;font-size:12px;font-family:宋体;color:dimgray;border-width:1px;border-style:solid;border-color:#c4cae6;background-color:white;" /></td> <td colspan="1" style="height: 24px; font-size: 14px; font-family: 宋体; width: 180px;" > <input type="image" name="ctl00$maincontent$nsearch" id="ctl00_maincontent_nsearch" src="../images/go.gif" alt="查询" ="return nselect();" style="border-width:0px;" /> </td> </tr> </table>
注意:
1.源文件控件和元素id和生成html文件的id不一致。在生成的html中原asp控件id加了ctl00_maincontent_前缀,其他元素加了ctl00$maincontent$前缀。原变form1为aspnetform这是因为aspx页面的控件是母板页的contentplaceholder
控件下的子控件,所以控件id会变
2.<system.web><xhtmlconformance mode="transitional|legacy|strict" />在其中选择 transitional、strict则产生自动前缀。ctl00.选择 legacy|则产生自动前缀_ctl0.
3.后台request.form["txtc_name"]键值需要改变,必须变为request.form["ctl00$maincontent$txtc_name"]才能收到页面输入值
4.至于为什么,只能说这是.net机制问题。。。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。