C＃中用逗号计算千位分隔符 [英] Calculator thousand separator by comma in C#

问题描述

private void TextBox_TextChanged(object sender, EventArgs e)
    {
    string value = TextBox.Text.Replace(",", "");
    long ul;
    if (long.TryParse(value, out ul))
    {
        TextBox.TextChanged -= TextBoxTextChanged;
        TextBox.Text = string.Format("{0:#,#0}", ul);
        TextBox.SelectionStart = TextBox.Text.Length;
        TextBox.TextChanged += TextBoxTextChanged;
    }
}

我上面用代码制作计算器。我想得到的结果是



按小数值等于逗号。通常我可以在textBox中键入



1,234.1234但如果我按1,000.123 + 1,000.123



它不会给出结果2,000.246 - 它只给出结果



2000.246。我的意思是逗号有十进制值没有得到



紧迫等于。



有谁可以请帮助我解决这个问题？



我尝试过：



我用于制作计算器的上述代码。我想得到的结果是



按小数值等于逗号。通常我可以在textBox中键入



1,234.1234但如果我按1,000.123 + 1,000.123



它不会给出结果2,000.246 - 它只给出结果



2000.246。我的意思是逗号有十进制值没有得到



紧迫等于。



有谁可以请帮助我解决这个问题？

I used above code for making Calculator. I want to get result by

pressing equal comma with decimal value. Normally I can type

1,234.1234 in the textBox but if I press 1,000.123 + 1,000.123

it does not give the result 2,000.246 - it gives result only

2000.246. I mean comma with decimal value not getting by

pressing equal.

Can anybody kindly please help me to solve this problem ?

What I have tried:

I used above code for making Calculator. I want to get result by

pressing equal comma with decimal value. Normally I can type

1,234.1234 in the textBox but if I press 1,000.123 + 1,000.123

it does not give the result 2,000.246 - it gives result only

2000.246. I mean comma with decimal value not getting by

pressing equal.

Can anybody kindly please help me to solve this problem ?

推荐答案

string whatYouWant = number.ToString("#,##0");

String.Format("{0:n}", 1234);

string.Format("{0:n0}", 9876); // no digits after the decimal point.

格式化您的输出值。

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