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

C#Label

C# Problem Overview

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

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

How do I amend this so that I the text includes comma/thousand separators?

i.e. 1,000 instead of 1000.

C# Solutions

Solution 1 - C#

Looking at the standard numeric format strings:

You can most easily use 'N' which will do the right thing based on the user culture, so in your case you can just add "N" as a param to the ToString

([double]12345.67).ToString("N")

> 12,345.67

Solution 2 - C#

For complete custom control, use ... .ToString("#,##0.00") or variations thereof. The . and , will be replaced by culture dependent symbols. In most of europe you'd get 1.234,56.
Another useful picture is 0.0#.

To use a pattern depending on the users (or on a selected) culture, use The Numeric ("N") Format Specifier, as in .ToString("N") or "... {0:N}".

Solution 3 - C#

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)

Solution 4 - C#

The easiest way to do it would be something like:

Convert.ToDouble("1234567.12345").ToString("N")

If you want to control the decimal places you can do something like:

Convert.ToDouble("1234567.12345").ToString("N3")

In general look at the overloads on ToString for more exciting possibilities.

Solution 5 - C#

An alternative to the above mentioned responses would be to use

this.lblSearchResults1.Text = String.Format("{0:N}", Convert.ToDouble(lblSearchResults1.Text))

If you wanted decimal places, just enter the amount of decimal places you wish to have after the N. The following example will return the value with 2 decimal places.

this.lblSearchResults1.Text = String.Format("{0:N2}", Convert.ToDouble(lblSearchResults1.Text))

See http://msdn.microsoft.com/en-us/library/system.string.format.aspx for more information.

Solution 6 - C#

> double.Parse(Amount).ToString("N");

Solution 7 - C#

Do not cast integral to double to do this!
Use NumberFormatInfo helper class, e.g:

    var nfi = new NumberFormatInfo() {
        NumberDecimalDigits = 0,
        NumberGroupSeparator = "."
    };

    var i = 1234567890;
    var s = i.ToString("N", nfi); // "1.234.567.890"
Categories
Recommended C# Solutions
Recommended Label Solutions

Previous Solution:

How to add two edit text fields in an alert dialog

AndroidLoginDialog

Next Solution:

Determine which side of a line a point lies

MathGeometryLinePoint

Attributions

All content for this solution is sourced from the original question on Stackoverflow.

The content on this page is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionRicardo DeanoView Question on Stackoverflow
Solution 1 - C#James ManningView Answer on Stackoverflow
Solution 2 - C#Henk HoltermanView Answer on Stackoverflow
Solution 3 - C#OliverView Answer on Stackoverflow
Solution 4 - C#ChrisView Answer on Stackoverflow
Solution 5 - C#Duu82View Answer on Stackoverflow
Solution 6 - C#M KomaeiView Answer on Stackoverflow
Solution 7 - C#vSzemkelView Answer on Stackoverflow