button.attributes.add无法正常工作 [英] button.attributes.add not working properly

问题描述

我遇到了ASP.Net中客户端脚本编写的问题.我添加了以下代码，用于在客户端显示图像并在服务器端显示图像的按钮:

Hi,

I''m running through a problem of client side scripting in ASP.Net. I''ve following code added for a button to show up and image on client side and go up server side:

btnSearch.Attributes.Add("onclick", "document.getElementById(''preloaderImage'').style.visibility=''visible'';");

这工作正常，但仅当我第一次单击按钮时才有效，而第二次或再次单击时则不然.感谢您的帮助！！

最好的问候，
Sunny.

This is working fine but only when I click the button first time, not on second and further clicks. I appreciate any help !!

Best regards,
Sunny.

推荐答案

您不能在ASPX页面上为按钮添加JavaScript.

这样一来，您就无需担心在后台代码上添加属性.

您也可以在document.ready上编写J-Query，将在页面完全加载后执行该查询，以便隐藏图像，

Can''t you add javascript on ASPX page for button.

That way you will not need to think worry adding attribute on code-behind.

Also you can write J-Query on document.ready which will be executed once page is loaded fully so you can hide the image,

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