当按下键盘中的空格按钮时,页面不应该转到另一页面 [英] page should not go another page when press back space button in keybord
问题描述
i我正在使用.net 4.0,我创建了一个网站,但是当我们按下键盘中的后退空间按钮来编辑文本时,我丢失在我当前页面并转到任何其他页面或主页,我不明白我是如何解决这个问题,
i am using .net 4.0, and i create a web site but here when we press in back space button in keybord to edit a text, i loss in my current page and go to any other page or a home page, i am not understand how i resolve this problem,
推荐答案
我们也可以通过禁用来实现这一点代码中的浏览器缓存在Page_Init事件或Page_Load事件中编写以下代码行,并且不要忘记使用System.Web添加命名空间;因为与该命名空间相关的HttpCacheability
We can also achieve this by disabling browser caching in code behind write the following lines of code in Page_Init event or Page_Load event and don’t forgot to add namespace using System.Web; because HttpCacheability related to that namespace
protected void Page_Init(object sender, EventArgs e)
{
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetExpires(DateTime.Now.AddSeconds(-1));
Response.Cache.SetNoStore();
}
我们需要将此代码放在我们需要禁用浏览器后退按钮的页面中。如果我们使用上面的缓存方法来禁用浏览器后退按钮,这将显示这样的网页过期消息
------------ - - - - - - - - - 要么 - - - - - - - - - - - - - - - - -----------------
< script type =text / javascript>
function preventBack(){window.history.forward( );}
setTimeout(preventBack(),0);
window.onunload = function(){null};
< / script>
我在以下浏览器中测试了脚本
1. Internet Explorer 5.55
2。 Internet Explorer 6
3. Internet Explorer 7
4. Mozilla Firefox 3
5.歌剧9
6. Safari 4
7.谷歌浏览器
We need to place this code in a page wherever we need to disable browser back button. If we use above caching method to disable browser back button that will display webpage expired message like this
------------------------------ OR ------------------------------------------------
<script type = "text/javascript" >
function preventBack(){window.history.forward();}
setTimeout("preventBack()", 0);
window.onunload=function(){null};
</script>
I have tested the script in the following browsers
1. Internet Explorer 5.55
2. Internet Explorer 6
3. Internet Explorer 7
4. Mozilla Firefox 3
5. Opera 9
6. Safari 4
7. Google Chrome
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