String format for only one decimal place?

Question

I'd like to dispaly only one decimal place. I've tried the following: ``` string thevalue = "6.33"; thevalue = string.Format("{0:0.#}", thevalue); ``` result: 6.33. But should be 6.3? Even 0.0 does not work. What am I doing wrong?

Accepted Answer

You need it to be a floating-point value for that to work.

```
double thevalue = 6.33;
```

Here's a demo. Right now, it's just a string, so it'll be inserted as-is. If you need to parse it, use `double.Parse` or `double.TryParse`. (Or `float`, or `decimal`.)

String format for only one decimal place?

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