BitConverter.ToUInt32 Method

Parameters

• value
  Type: array<System.Byte[]
  An array of bytes.

• startIndex
  Type: System.Int32
  The starting position within value.

Return Value

Type: System.UInt32
A 32-bit unsigned integer formed by four bytes beginning at startIndex.

' Example of the BitConverter.ToUInt32 method.

Module Example

   Const formatter As String = "{0,5}{1,17}{2,15}"

   ' Convert four Byte array elements to a UInt32 and display it.
   Sub BAToUInt32(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal bytes() As Byte, ByVal index As Integer)

      Dim value As UInt32 = BitConverter.ToUInt32(bytes, index)

      outputBlock.Text &= String.Format(formatter, index, _
          BitConverter.ToString(bytes, index, 4), value) & vbCrLf
   End Sub

   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      Dim byteArray As Byte() = { _
           15, 0, 0, 0, 0, 16, 0, 255, 3, 0, _
            0, 202, 154, 59, 255, 255, 255, 255, 127}

      outputBlock.Text &= String.Format( _
          "This example of the BitConverter.ToUInt32( Byte( ), " & _
          "Integer ) " & vbCrLf & "method generates the " & _
          "following output. It converts elements " & vbCrLf & _
          "of a Byte array to UInt32 values." & vbCrLf) & vbCrLf
      outputBlock.Text &= "initial Byte array" & vbCrLf
      outputBlock.Text &= "------------------" & vbCrLf
      outputBlock.Text &= BitConverter.ToString(byteArray) & vbCrLf
      outputBlock.Text &= vbCrLf
      outputBlock.Text &= String.Format(formatter, "index", "array elements", _
          "UInt32") & vbCrLf
      outputBlock.Text &= String.Format(formatter, "-----", "--------------", _
          "------") & vbCrLf

      ' Convert Byte array elements to UInt32 values.
      BAToUInt32(outputBlock, byteArray, 1)
      BAToUInt32(outputBlock, byteArray, 0)
      BAToUInt32(outputBlock, byteArray, 7)
      BAToUInt32(outputBlock, byteArray, 3)
      BAToUInt32(outputBlock, byteArray, 10)
      BAToUInt32(outputBlock, byteArray, 15)
      BAToUInt32(outputBlock, byteArray, 14)
   End Sub
End Module

' This example of the BitConverter.ToUInt32( Byte( ), Integer )
' method generates the following output. It converts elements
' of a Byte array to UInt32 values.
' 
' initial Byte array
' ------------------
' 0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F
' 
' index   array elements         UInt32
' -----   --------------         ------
'     1      00-00-00-00              0
'     0      0F-00-00-00             15
'     7      FF-03-00-00           1023
'     3      00-00-10-00        1048576
'    10      00-CA-9A-3B     1000000000
'    15      FF-FF-FF-7F     2147483647
'    14      FF-FF-FF-FF     4294967295

// Example of the BitConverter.ToUInt32 method.
using System;

class Example
{
   const string formatter = "{0,5}{1,17}{2,15}";

   // Convert four byte array elements to a uint and display it.
   public static void BAToUInt32(System.Windows.Controls.TextBlock outputBlock, byte[] bytes, int index)
   {
      uint value = BitConverter.ToUInt32(bytes, index);

      outputBlock.Text += String.Format(formatter, index,
          BitConverter.ToString(bytes, index, 4), value) + "\n";
   }

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      byte[] byteArray = {
             15,   0,   0,   0,   0,  16,   0, 255,   3,   0, 
              0, 202, 154,  59, 255, 255, 255, 255, 127 };

      outputBlock.Text += String.Format(
          "This example of the BitConverter.ToUInt32( byte[ ], " +
          "int ) \nmethod generates the following output. It " +
          "converts elements \nof a byte array to uint values.\n") + "\n";
      outputBlock.Text += "initial byte array" + "\n";
      outputBlock.Text += "------------------" + "\n";
      outputBlock.Text += BitConverter.ToString(byteArray) + "\n";
      outputBlock.Text += "\n";
      outputBlock.Text += String.Format(formatter, "index", "array elements",
          "uint") + "\n";
      outputBlock.Text += String.Format(formatter, "-----", "--------------",
          "----") + "\n";

      // Convert byte array elements to uint values.
      BAToUInt32(outputBlock, byteArray, 1);
      BAToUInt32(outputBlock, byteArray, 0);
      BAToUInt32(outputBlock, byteArray, 7);
      BAToUInt32(outputBlock, byteArray, 3);
      BAToUInt32(outputBlock, byteArray, 10);
      BAToUInt32(outputBlock, byteArray, 15);
      BAToUInt32(outputBlock, byteArray, 14);
   }
}

/*
This example of the BitConverter.ToUInt32( byte[ ], int )
method generates the following output. It converts elements
of a byte array to uint values.

initial byte array
------------------
0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F

index   array elements           uint
-----   --------------           ----
    1      00-00-00-00              0
    0      0F-00-00-00             15
    7      FF-03-00-00           1023
    3      00-00-10-00        1048576
   10      00-CA-9A-3B     1000000000
   15      FF-FF-FF-7F     2147483647
   14      FF-FF-FF-FF     4294967295
*/