具有可变空间对齐方式的C#字符串格式 [英] C# string formatting with variable space alignment

问题描述

我想做类似的事情

String.Format("Completed {0:9} of ",0) + xlsx.totalCount.ToString();

除了要对9进行硬编码外，我希望对齐方式是xlsx.totalCount.有什么想法吗?

except instead of hardcoding a 9 I want the alignment to be whatever xlsx.totalCount is. Any thoughts?

推荐答案

该字符串不必是编译时间常数，您可以在运行时构建字符串(使用StringBuilder，operator +或嵌套的String.Format.).例如，这将产生所需的字符串，其中xlsx.totalCount替换为"9":

The string doesn't have to be a compile time constant, you can build the string during runtime (using a StringBuilder, operator+ or even a nested String.Format). This, for instance will produce the needed string with xlsx.totalCount replacing the "9":

String.Format("Completed {0:" + xlsx.totalCount + "} of "...

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