使用.NET字符串格式化,我怎么格式化字符串来显示空白(空字符串),零(0)? [英] Using .NET string formatting, how do I format a string to display blank (empty string) for zero (0)?
问题描述
我使用的DataBinder.Eval EX pression在ASP.NET Datagrid的,但我认为这个问题适用于字符串格式化在.NET中一般。有客户请求,如果字符串的值是0,它不应该被显示。我有下面的技巧来实现:
I am using a DataBinder.Eval expression in an ASP.NET Datagrid, but I think this question applies to String formatting in .NET in general. The customer has requested that if the value of a string is 0, it should not be displayed. I have the following hack to accomplish this:
<%# IIf(DataBinder.Eval(Container.DataItem, "MSDWhole").Trim = "0", "",
DataBinder.Eval(Container.DataItem, "MSDWhole", "{0:N0}")) %>
我想修改 {0:N0}
格式化EX pression,这样我可以消除IIF语句,但无法找到任何工作
I would like to change the {0:N0}
formatting expression so that I can eliminate the IIf statement, but can't find anything that works.
推荐答案
您需要使用的部分分离,像这样的:
You need to use the section separator, like this:
<%# DataBinder.Eval(Container.DataItem, "MSDWhole", "{0:N0;; }").Trim() %>
请注意,只有消极的部分可以是空的,所以我需要把一个空间,在 0
部分。 (阅读文档)
Note that only the negative section can be empty, so I need to put a space in the 0
section. (Read the documentation)
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