<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="JSRemoveHTML.aspx.cs" Inherits="WebUI.JSRemoveHTML" %>
<!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 runat="server">
<title></title>
<script language="JavaScript" type="text/JavaScript">
function RemoveHTML()
{
var strText = document.getElementById("txtAskTitle").value;
var regEx = /<[^>]*>/g;
document.getElementById("txtAskTitle").value = strText.replace(regEx, "");
}
///移除HTML代碼，
function RemoveHTML2(obj, event)
{
var argumentsLength = arguments.length;
if (argumentsLength == 2)
{
//KeyUp
if (event.keyCode == 37 || event.keyCode == 38 || event.keyCode == 39 || event.keyCode == 40)
{
return;
}
if (window.event.ctrlKey && event.keyCode == 65)
{
return;
}
}
var tempValue = obj.value.replace(/<\/?[^>]+>/g, ""); //去除HTML tag
tempValue = tempValue.replace(/[ | ]*\n/g, "\n"); //去除行尾空白
tempValue = tempValue.replace(/\n[\s| | ]*\r/g, "\n"); //去除多餘空行
if (obj.value != tempValue)
{
obj.value = tempValue;
}
document.getElementById("divShow").innerHTML = obj.value;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
SessionID：<asp:Literal ID="ltSessionId" runat="server"></asp:Literal>
</div>
<div>
&</div>
<div>
<textarea rows="20" cols="50" id="txtAskTitle" name="txtAskTitle" οnkeyup="RemoveHTML2(this,event)"
οnblur="RemoveHTML2(this)"></textarea>
<input type="button" value="去掉HTML" οnclick="RemoveHTML();" />
<asp:Button ID="btnSubmit" runat="server" Text="提交" OnClick="btnSubmit_Click" />
<div id="divShow">
<asp:Literal ID="ltShow" runat="server" Text=""></asp:Literal>
</div>
</div>
</form>
</body>
</html> Javascript 清除文本框、文本域中的 HTML 代碼
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