' Project Strings

' Examples of using some of the methods of the String class.
' The output is shown in a multiline textbox.

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents txtOutput As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.txtOutput = New System.Windows.Forms.TextBox
        Me.SuspendLayout()
        '
        'txtOutput
        '
        Me.txtOutput.Font = New System.Drawing.Font("Microsoft Sans Serif", 14.25!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.txtOutput.Location = New System.Drawing.Point(24, 16)
        Me.txtOutput.Multiline = True
        Me.txtOutput.Name = "txtOutput"
        Me.txtOutput.Size = New System.Drawing.Size(408, 184)
        Me.txtOutput.TabIndex = 0
        Me.txtOutput.Text = ""
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(456, 222)
        Me.Controls.Add(Me.txtOutput)
        Me.Name = "Form1"
        Me.Text = "Strings Example"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, _
       ByVal e As System.EventArgs) Handles MyBase.Load

        Dim r As New String("Cat")
        Dim s As String = "Dog"
        Dim t As String = "elephant"
        Dim u As String = "pha"
        Dim v As String = "   mouse    "
        Dim w As String
        Dim n As String = ControlChars.NewLine

        w = s & r
        txtOutput.AppendText(w & " " & w.ToUpper() & " " & w.ToLower() & n)
        txtOutput.AppendText(t.Substring(4, 3) & " " & t.Insert(1, s) & n)
        txtOutput.AppendText(t.Remove(3, 2) & "*" & v.Trim() & "*" & n)
        txtOutput.AppendText(t.IndexOf(u) & " " & s.IndexOfAny("aeiou") & n)

    End Sub
End Class