如何使用JavaScript在ASP.net中使用复选框 [英] How to use checkboxes in ASP.net from javascript
本文介绍了如何使用JavaScript在ASP.net中使用复选框的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
如何在ASP.net的javascript函数中访问CheckBoxes?
请帮帮我.
提前谢谢！
OP实际上意味着JavaScript，因此我正在重新编辑OP的问题[/编辑]
OP的代码:
How can I access CheckBoxes in javascript functions in ASP.net?
Please help me.
Thanks in advance!
OP did in fact mean javascript so I''m re-editing OP''s question[/Edit]
OP''s code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="tour2.aspx.cs" Inherits="tour2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>www.smartwaytours.com</title>
<script type="text/javascript"> function pageLoad() { }
function imageload() {
document.getElementById("img1").src=document.getElementById("File1").value;
alert(document.getElementById("img1").src);
document.getElementById("hidHeight").value = document.getElementById("img1").height;
document.getElementById("hidWidth").value = document.getElementById("img1").width;
//document.getElementById("img1").style.display="none"
var height=document.getElementById("hidHeight").value;
var width=document.getElementById("hidWidth").value;
alert(height); alert(width);
if((height!="61")&&(width!="64")) {
alert("Hi");
//document.getElementById("img1").style.display="";
document.getElementById("img1").src = "images/ni(64X61).gif"
//document.getElementById("File1").value= "fasdf";
alert("Please upload 64 X 61 size image");
document.getElementById("hidHeight").value= "";
document.getElementById("hidWidth").value= "";
alert("ashdgjf"); return false;
} else{
document.getElementById("img1").src=document.getElementById("File1").value;
} return ; } function imageload1() {
document.getElementById("img2").src=document.getElementById("File2").value;
document.getElementById("HiddenField3").value = document.getElementById("img2").height;
document.getElementById("HiddenField4").value = document.getElementById("img2").width;
} function imageload2() {
document.getElementById("img3").src=document.getElementById("File3").value;
document.getElementById("HiddenField5").value = document.getElementById("img3").height;
document.getElementById("HiddenField6").value = document.getElementById("img3").width;
} function chkImg() {
document.getElementById("img3").style.display = "";
document.getElementById("File3").style.display = ""; }
</script> <style type="text/css">
.style3 { width:60%; } .style4 {
text-align: right; } </style></head>
</head><body> <form id="form1" runat="server">
<div>
<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<table width="966" height="629" border="0" align="center" style="background-color:Aqua" cellpadding="5" cellspacing="5" id="Table_01">
<tr>
<td colspan="5" background="images/inside_01.jpg"> </td>
</tr> <tr>
<td width="44" background="images/bg1.jpg"> </td>
<td colspan="3">
<img src="images/inside_03.jpg" width="876" height="171" alt=""><table
class="style2"> <br />
<br />
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager> <br />
<br /> <br />
<tr>
<td class="style4">
Tour Title</td>
<td class
Tour Title</td> <td class="style3" >
<asp:TextBox ID="txttourtitle" runat="server" Width="190"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="txttourtitle" ErrorMessage="*"></asp:RequiredFieldValidator>
</td>
</tr> <tr>
<td class="style4">
Tour Description</td>
<td class="style3">
<textarea id="txttourdesc" cols="20" name="S1" rows="4" class="style3"></textarea>
</td>
</tr>
<tr>
<td class="style4">
Image(64X61)</td>
<td>
<img id="img1" src="" runat="server" alt="" />
<asp:HiddenField ID="hidWidth" runat="server" />
<asp:HiddenField ID="hidHeight" runat="server" />
<input type="file" id="File1" runat="server" önchange="return imageload();" />
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ErrorMessage="Upload Jpegs and Gifs only."
ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)$"
ControlToValidate="File1"></asp:RegularExpressionValidator>
</td> </tr>
<tr>
<td class="style4">
Image(398X225)</td>
<td>
<img id="img2" src="" runat="server" alt="" />
<asp:HiddenField ID="HiddenField1" runat="server" />
<asp:HiddenField ID="HiddenField2" runat="server" />
<input type="file" id="File2" runat="server" önchange="imageload1();" /><asp:RegularExpressionValidator
ID="RegularExpressionValidator2" runat="server"
rrorMessage="Upload Jpegs and Gifs only."
ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)$"
ControlToValidate="File2"></asp:RegularExpressionValidator>
</td> </tr>
<tr>
<td class="style4">
</td>
<td>
<asp:UpdatePanel ID="UpdatePanel1" runat="server"> <contenttemplate>
<input type="checkbox" id="CheckBox1" runat="server" önclick="chkImg()" />
<asp:Label ID="Label1" Text="For Popular Tour" runat="server"></asp:Label>
</td>
</tr>
<tr> <td>
<br /> </td>
<td>
<img id="img3" runat="server" alt="" style="display:none"/>
<asp:HiddenField ID="HiddenField5" runat="server" />
<asp:HiddenField ID="HiddenField6" runat="server" />
<input type="file" id="File3" runat="server" önchange="imageload2();" style="display:none"/></td>
</tr> <tr> </contenttemplate>
推荐答案
?)(\\(\ w [\ w].*))(.jpg | .JPG | .gif | .GIF)
?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)
ControlToValidate ="File1"></asp:RegularExpressionValidator> </td> </tr> < tr> < td class ="style4"> 图像(398X225)< td> < td> < img id ="img2" src =" runat ="server" alt ="/> < asp:HiddenField ID ="HiddenField1" runat ="server"/> < asp:HiddenField ID ="HiddenField2" runat ="server"/> < input type ="file" id ="File2" runat ="server"önchange="imageload1();" />< asp:RegularExpressionValidator ID ="RegularExpressionValidator2" runat =服务器" rrorMessage =仅上传Jpeg和Gif." ValidationExpression ="^(([[a-zA-Z] :) |(\\ {2} \ w +)\
" ControlToValidate="File1"></asp:RegularExpressionValidator> </td> </tr> <tr> <td class="style4"> Image(398X225)</td> <td> <img id="img2" src="" runat="server" alt="" /> <asp:HiddenField ID="HiddenField1" runat="server" /> <asp:HiddenField ID="HiddenField2" runat="server" /> <input type="file" id="File2" runat="server" önchange="imageload1();" /><asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" rrorMessage="Upload Jpegs and Gifs only." ValidationExpression="^(([a-zA-Z]:)|(\\{2}\w+)\
?)(\\(\ w [\ w]. *))(.jpg | .JPG | .gif | .GIF)
?)(\\(\w[\w].*))(.jpg|.JPG|.gif|.GIF)
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