将String转换为带格式的Double [英] Convert String to Double with format

问题描述

您好，专家，

我将字符串转换为双精度字有一个问题.
我有这样的字符串(123456789)，我想将其转换为这样的double(123,456,789.00).

有人知道如何格式化吗?

谢谢

TONY

解决方案

使用Double.TryParse
将字符串转换为双精度
但是，另一个要求不是双精度数，而是一个双精度数在字符串中表示为两个DP的局部表示形式.

语言环境规定了分组，分组分隔符和DP字符，即在法国该字符串为123.456.789,00

您可以使用 FormatNumber [ 私有 Sub Form1_Load(发送方 As 对象，以及 As EventArgs) Dim strValue As 字符串 = " Dim d As Double = 0 如果 [ Double ].TryParse(strValue，d)然后 MessageBox.Show(d.ToString(" ，CultureInfo.InvariantCulture)) 结束 如果 结束 子

Hi experts,

I have one problem with convert string to double.
I have string like this (123456789) and i want to convert it to double like this (123,456,789.00).

Does anyone know how to format like this?

Thanks

TONY

解决方案

Turning that string into a double is done with Double.TryParse

However, that other requirement is NOT a double, it''s a local representation of that double, in a string, to two DP

Locale dictates grouping, grouping separator and DP character, i.e. that string would be 123.456.789,00 in France

You''d use FormatNumber[^] to get that

Hi,

What you want is to convert this string to double and then display it in your format. To achieve this you may try this code:

Private Sub Form1_Load(sender As Object, e As EventArgs)
    Dim strValue As String = "123456789"
    Dim d As Double = 0
    If [Double].TryParse(strValue, d) Then
        MessageBox.Show(d.ToString("0,0.00", CultureInfo.InvariantCulture))
    End If
End Sub

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