在WPF字符串格式 [英] String format in wpf

问题描述

我有一个文本框在 WPF 是在我的模型相关的浮点型变量

I have a TextBox on WPF that is related to the float variable in my model

继TextxBox：

 <TextBox Text="{Binding Position, StringFormat=f4}"/>

我想这将文本框后点最多显示4个号码。

I want that TextBox will display a maximum 4 numbers after the point.

所以我把的StringFormat = F4 。

但现在，即使我有一点后不到4个数字，当我有一个整数它显示在后点4位。

But now, even when I have less than 4 numbers after the point and when I have a whole number it displays with 4 digits after the point.

例如，数字0是表明：0.0000

我想，只要它没有通过四个数字，在一个正常的方式显示出来，我该怎么做呢？

I want as long as it did not pass the four numbers, display it in a normal way, how can I do this?

推荐答案

您可以使用的StringFormat =尝试{} {0：0} ####

此语法 {} 是由于我们设定了一个WPF属性等于包含花括号符号的字符串的事实。花括号符号是通过WPF以特定方式PTED间$ P $和不会作为PTED字符串的一部分际$ P $。如果没有 {} 的code不会编译。 {} 允许你将一个WPF设置为包含花括号符号的字符串值。

This syntax with {} is due to the fact that we set a WPF property equal to a string that contains curly bracket symbols. Curly bracket symbols are interpreted by WPF in a particular way and would not be interpreted as part of the string. Without the {} the code would not compile. {} allows you to set a WPF to a string value that contains curly bracket symbols.

您可以有例如看一下链接的字符串中的格式WPF和Silverlight

You can have for example a look at the link String formatting in WPF and Silverlight

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