' Project ShowWord

' Display the words from a file in a textbox.

Imports System.IO
Public Class Form1
    Inherits System.Windows.Forms.Form

    Private reader As StreamReader


#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 lblWord As System.Windows.Forms.Label
    Friend WithEvents btnGetNext As System.Windows.Forms.Button
    Friend WithEvents btnReset As System.Windows.Forms.Button
    Friend WithEvents txtWord As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.txtWord = New System.Windows.Forms.TextBox
        Me.lblWord = New System.Windows.Forms.Label
        Me.btnGetNext = New System.Windows.Forms.Button
        Me.btnReset = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'txtWord
        '
        Me.txtWord.BackColor = System.Drawing.Color.White
        Me.txtWord.Font = New System.Drawing.Font("Microsoft Sans Serif", _
            15.75!, System.Drawing.FontStyle.Bold, _
            System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.txtWord.Location = New System.Drawing.Point(48, 32)
        Me.txtWord.Name = "txtWord"
        Me.txtWord.ReadOnly = True
        Me.txtWord.Size = New System.Drawing.Size(192, 31)
        Me.txtWord.TabIndex = 0
        Me.txtWord.Text = ""
        '
        'lblWord
        '
        Me.lblWord.Font = New System.Drawing.Font("Microsoft Sans Serif", _
            15.75!, System.Drawing.FontStyle.Bold, _
            System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.lblWord.Location = New System.Drawing.Point(104, 80)
        Me.lblWord.Name = "lblWord"
        Me.lblWord.Size = New System.Drawing.Size(72, 32)
        Me.lblWord.TabIndex = 1
        Me.lblWord.Text = "Word"
        '
        'btnGetNext
        '
        Me.btnGetNext.Font = New System.Drawing.Font("Microsoft Sans Serif", _
            15.75!, System.Drawing.FontStyle.Bold, _
            System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.btnGetNext.Location = New System.Drawing.Point(48, 128)
        Me.btnGetNext.Name = "btnGetNext"
        Me.btnGetNext.Size = New System.Drawing.Size(192, 40)
        Me.btnGetNext.TabIndex = 2
        Me.btnGetNext.Text = "Get Next Word"
        '
        'btnReset
        '
        Me.btnReset.Font = New System.Drawing.Font("Microsoft Sans Serif", _
            15.75!, System.Drawing.FontStyle.Bold, _
            System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.btnReset.Location = New System.Drawing.Point(48, 184)
        Me.btnReset.Name = "btnReset"
        Me.btnReset.Size = New System.Drawing.Size(192, 40)
        Me.btnReset.TabIndex = 3
        Me.btnReset.Text = "Reset"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.Add(Me.btnReset)
        Me.Controls.Add(Me.btnGetNext)
        Me.Controls.Add(Me.lblWord)
        Me.Controls.Add(Me.txtWord)
        Me.Name = "Form1"
        Me.Text = "Show Words Project"
        Me.ResumeLayout(False)

    End Sub

#End Region

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

        btnReset.PerformClick( )
        txtWord.SelectionLength = 0
    End Sub

    ' Get next word from file.
    Private Sub btnGetNext_Click(ByVal sender As Object, _
        ByVal e As System.EventArgs) Handles btnGetNext.Click

        If reader.Peek( ) > -1 Then
            txtWord.Text = reader.ReadLine( )
        Else
            txtWord.Clear( )
        End If
    End Sub

    Private Sub btnReset_Click(ByVal sender As Object, _
        ByVal e As System.EventArgs) Handles btnReset.Click

        reader = Nothing
        reader = New StreamReader("Words.txt")
        btnGetNext.PerformClick( )
    End Sub
End Class