[RESOLVED] [2005] Display only 1 decimal place of an Int or Double

[andyismilesaway]

Hi all, this should be an easy one:

How can you show only one decimal place of a Double, not lose the remaining accuracy just only show (eg in a text box) 1dp.

Dim number as Double = 1.2345
textbox1.text = "<here i want to only show 1.2>"

thanks all

[Tinbeard]

Here's one way....

Dim dl As Double
        dl = 1.2345
        TextBox1.Text = dl.ToString.Substring(0, dl.ToString.IndexOf(".") + 2)

[jamesclarke112]

even easier...

Textbox1.Text = dl.ToString("#.#")

[Atheist]

Just for further info, you should check out the Round function in the System.Math class.

[jmcilhinney]

even easier...

Textbox1.Text = dl.ToString("#.#")

I would suggest using standard numeric format strings in preference to custom numeric format strings wherever possible. That way you ensure that you use the current systems chosen formats. To display a number with a single decimal place would be:

myNumber.ToString("n1")

You can find all the possibilities, both standard and custom, simply by searching MSDN for format strings. You'll find information for numbers and dates/times.