How to VB.NET String.Format()

VB.NET String Format method replace the argument Object into a text equivalent System.Striing.


  1. String format : The format String.
  2. The format String Syntax is like {indexNumber:formatCharacter}.
  3. Object arg0 : The object to be formatted.


  1. String : The formatted String.


  1. System.ArgumentNullException : The format String is null.
  2. System.FormatException : The format item in format is invalid.

The number indicating an argument to format is less than zero, or greater than or equal to the number of specified objects to format.

For ex :

Currency :

String.Format("{0:c}", 10) will return $10.00.

The currency symbol ($) displayed depends on the global locale settings.

Date :

You will get Today's date like : 01 January 2005.

Time :

You will get Current Time Like : 10:10:12.

Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
        Dim dNum As Double
        dNum = 32.123456789
        MsgBox("Formated String " & String.Format("{0:n4}", dNum))
    End Sub
End Class

When you run this source code yo will get "Formated String 32.1234" (C) 2021    Founded by raps mk
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