String.Format Method (String, Object)

Parameters

• format
  Type: System.String
  A composite format string (see Remarks).

• arg0
  Type: System.Object
  The object to format.

Return Value

Type: System.String
A copy of format in which the first format item has been replaced by the string representation of arg0.

Imports System.Windows.Media

Module Example
   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      outputBlock.FontFamily = New FontFamily("Courier New")

      Dim values() As Short = {Int16.MinValue, -27, 0, 1042, Int16.MaxValue}
      outputBlock.Text &= String.Format("{0,10}  {1,10}", "Decimal", "Hex") & vbCrLf
      outputBlock.Text &= vbCrLf
      For Each value As Short In values
         Dim formatString As String = String.Format("{0,10:G}: {0,10:X}", value)
         outputBlock.Text &= formatString & vbCrLf
      Next
   End Sub
End Module
' The example displays the following output:
'       Decimal         Hex
'    
'        -32768:       8000
'           -27:       FFE5
'             0:          0
'          1042:        412
'         32767:       7FFF

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      outputBlock.FontFamily = new FontFamily("Courier New");

      short[] values = { Int16.MinValue, -27, 0, 1042, Int16.MaxValue };
      outputBlock.Text += String.Format("{0,10}  {1,10}\n\n", "Decimal", "Hex");
      foreach (short value in values)
      {
         string formatString = String.Format("{0,10:G}: {0,10:X}", value);
         outputBlock.Text += formatString + "\n";
      }
   }
}
// The example displays the following output:
//       Decimal         Hex
//    
//        -32768:       8000
//           -27:       FFE5
//             0:          0
//          1042:        412
//         32767:       7FFF

Module Example
   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      Dim birthdate As Date = #7/28/1993#
      Dim dates() As Date = {#9/16/1993#, #7/28/1994#, #10/16/2000#, _
                              #7/27/2003#, #5/27/2007#}
      For Each dateValue As Date In dates
         Dim interval As TimeSpan = dateValue - birthdate
         ' Get the approximate number of years, without accounting for leap years.
         Dim years As Integer = CInt(interval.TotalDays) \ 365
         ' See if adding the number of years exceeds dateValue.
         If birthdate.AddYears(years) <= dateValue Then
            outputBlock.Text += String.Format("You are now {0} years old.", years) & vbCrLf
         Else
            outputBlock.Text += String.Format("You are now {0} years old.", years - 1) & vbCrLf
         End If
      Next
   End Sub
End Module
' The example displays the following output:
'       You are now 0 years old.
'       You are now 1 years old.
'       You are now 7 years old.
'       You are now 9 years old.
'       You are now 13 years old.

using System;

[assembly: CLSCompliant(true)]
public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      DateTime birthdate = new DateTime(1993, 7, 28);
      DateTime[] dates = { new DateTime(1993, 8, 16), 
                           new DateTime(1994, 7, 28), 
                           new DateTime(2000, 10, 16), 
                           new DateTime(2003, 7, 27), 
                           new DateTime(2007, 5, 27) };

      foreach (DateTime dateValue in dates)
      {
         TimeSpan interval = dateValue - birthdate;
         // Get the approximate number of years, without accounting for leap years.
         int years = ((int)interval.TotalDays) / 365;
         // See if adding the number of years exceeds dateValue.
         if (birthdate.AddYears(years) <= dateValue)
            outputBlock.Text += String.Format("You are now {0} years old.", years) + "\n";
         else
            outputBlock.Text += String.Format("You are now {0} years old.", years - 1) + "\n";
      }
   }
}
// The example displays the following output:
//       You are now 0 years old.
//       You are now 1 years old.
//       You are now 7 years old.
//       You are now 9 years old.
//       You are now 13 years old.