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WebResourceProvider VB.NET style

, 30 Aug 2002
Ravi Bhavnani's WebResourceProvider ported to the .NET Framework
Public Class GetQuote
    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 TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents Button2 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.Button2 = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(136, 16)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(64, 20)
        Me.TextBox1.TabIndex = 0
        Me.TextBox1.Text = ""
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(136, 64)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(64, 24)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Quote"
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(136, 40)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(136, 16)
        Me.Label1.TabIndex = 2
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 16)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(120, 16)
        Me.Label2.TabIndex = 3
        Me.Label2.Text = "Enter a ticker symbol:"
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(16, 40)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(104, 16)
        Me.Label3.TabIndex = 4
        Me.Label3.Text = "Delayed quote:"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(208, 64)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(64, 24)
        Me.Button2.TabIndex = 1
        Me.Button2.Text = "Exit"
        '
        'GetQuote
        '
        Me.AutoScale = False
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(280, 93)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label3, Me.Label2, Me.Label1, Me.Button1, Me.TextBox1, Me.Button2})
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "GetQuote"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "Get Quote from Yahoo"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim myQuoteProvider As New QuoteProvider()
        myQuoteProvider.Symbol = TextBox1.Text
        Label1.Text = "Getting quote..."
        Me.Refresh()
        Try
            Label1.Text = [String].Format("{0} = {1}", myQuoteProvider.Symbol.ToUpper, myQuoteProvider.Quote)
        Catch ex As Exception
            Label1.Text = "Error"
            MsgBox(GetErrorString(ex), MsgBoxStyle.Critical, "Error getting quote")
        End Try
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Me.Close()
    End Sub

    Private Function GetErrorString(ByVal ex As Exception) As String
        Dim mySB As New System.Text.StringBuilder()
        AddErrorString(mySB, ex)
        Return mySB.ToString

    End Function

    Private Sub AddErrorString(ByRef mySB As System.Text.StringBuilder, ByRef ex As Exception)
        mySB.Append(ex.Message + vbCrLf)
        If Not ex.InnerException Is Nothing Then
            AddErrorString(mySB, ex.InnerException)
        End If
    End Sub

End Class

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About the Author

Cello
Web Developer
Switzerland Switzerland
No Biography provided

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Web02 | 2.8.141022.2 | Last Updated 31 Aug 2002
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