How to insert a thousand separator (comma) with convert to double

Question

I am trying to format the contents of a text box:

this.lblSearchResults1.Text =
    Convert.ToDouble(lblSearchResults1.Text).ToString(); 

H

Answer 1

If you take a closer look at Standard Numeric Format Strings you can try one of the following:

.ToString("n", CultureInfo.GetCultureInfo("en-US"))
.ToString("n", CultureInfo.GetCultureInfo("de-DE"))
.ToString("n", CultureInfo.CurrentCulture)