C＃格式化文本框用逗号整数并使用Double [英] C# Format textbox Integer with comma and using Double

问题描述

有人可以用文本框帮我吗？我有textbox1，我只输入数字，我想在Text_Leave事件后将其格式化为数字：

Hi, can someone help me with textbox? i got textbox1 and i only input numbers, i wanted to format it to numbers after Text_Leave Event:

For Example :
I input 122333

Output must be:
122,333.00

这是我在text_leave中的代码

here's my code in text_leave

string a;
           double bb = double.Parse(textBox1.Text);

  a = Double.ToString("#,0.##");

textbox.Text中的输出变为＃，0。##



请帮忙谢谢！

The output in textbox.Text became #,0.##

Please help Thanks!

推荐答案

尝试：

Try:

string a;
double bb;
if (!double.TryParse(textBox1.Text, out bb))
   {
   // Report a problem to the user.
   ...
   }
else
   {
   a = bb.ToString("#,000.00");
   ...

尝试 string.Format（{0：n0}，bb）; 。

我想你会在MSDN上找到你需要的帮助阅读信息：自定义数字格式字符串 [ ^ ]



这还取决于您在计算机上的本地化设置。

I think you will find the help you need reading the info on MSDN: Custom Numeric Format Strings[^]

It also depends on the localization setting you have on your computer.

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