StringBuilder.Capacity Property gets or sets the maximum number of characters that can be contained

 

Imports System.Text

Class Sample
   Public Shared Sub Main()
      Dim sb1 As New StringBuilder("abc")
      Dim sb2 As New StringBuilder("abc", 16)

      Console.WriteLine("{0}, {1}", sb1.Length, sb1.Capacity)
      Console.WriteLine("{0}, {1}", sb2.Length, sb2.Capacity)
      Console.WriteLine("{0}, {1}", sb1.ToString(),           sb2.ToString())
      Console.WriteLine(sb1.Equals(sb2))

      sb1.EnsureCapacity(50)

      Console.WriteLine("{0}, {1}", sb1.Length, sb1.Capacity)
      Console.WriteLine("{0}, {1}", sb2.Length, sb2.Capacity)
      Console.WriteLine("{0}, {1}", sb1.ToString(),           sb2.ToString())
      Console.WriteLine(sb1.Equals(sb2))

      sb1.Length = 0
      sb2.Capacity = 51

      Console.WriteLine("{0}, {1}", sb1.Length, sb1.Capacity)
      Console.WriteLine("{0}, {1}", sb2.Length, sb2.Capacity)
      Console.WriteLine("{0}, {1}", sb1.ToString(),           sb2.ToString())
      Console.WriteLine(sb1.Equals(sb2))
   End Sub
End Class

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StringBuilder.Capacity Property gets or sets the maximum number of characters that can be contained : StringBuilder « Language Basics « VB.Net

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