按钮禁用问题 [英] Button disable problem

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本文介绍了按钮禁用问题的处理方法,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

protected void Button1_Click(object sender, EventArgs e)
    {
        Button1.Enabled = false;
        try
        {
            // put your code here
        }
        finally
        {
            Button1.Enabled = true;
        }
        
    }



我写了这段代码,仍然没有禁用按钮,并启用了



i wrote this code still button not disable and enable why

推荐答案

,因为您使用了finally块,这就是为什么按钮未禁用的原因.
如果您使用try-catch-finally

然后最终将在是否发生错误且代码发生相同的情况下执行.


阅读此内容-

http://msdn.microsoft.com/en-us/library/dszsf989%28v = vs.80%29.aspx [ ^ ]
because you used finally block, that''s why button is not disabling.

if you are using try-catch-finally

then finally will be executed if error occurs or not and the same happening to your code.


Read this -

http://msdn.microsoft.com/en-us/library/dszsf989%28v=vs.80%29.aspx[^]


您可以在finally块中启用按钮.
You enable your button in finally block.
finally
       {
           Button1.Enabled = true;
       }


使用


use

try
{
}
catch
{
Button1.Enabled = true;
}


Button1.Enabled = false;
        try
        {
            // put your code here
        }
       catch
        {
            Button1.Enabled = true;
        }


这篇关于按钮禁用问题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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