Answer to Question #181552 in Visual Basic for anna

Question

Draw a flowchart and develop an application that will store the salesperson’s code, which is to be entered in the codeTextBox, in an Integer variable named code. The application will need to store the sales amount, which is to be entered in the salesTextBox, in a decimal variable named sales. Display the result of the calculation, or the error message, in the messageLabel. Name your Program SalesAccount.

Answer 1

Flowchart:

Vb.net code:

Form1.Designer.vb

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form


    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        Try
            If disposing AndAlso components IsNot Nothing Then
                components.Dispose()
            End If
        Finally
            MyBase.Dispose(disposing)
        End Try
    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.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.codeTextBox = New System.Windows.Forms.TextBox()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.salesTextBox = New System.Windows.Forms.TextBox()
        Me.btnSave = New System.Windows.Forms.Button()
        Me.messageLabel = New System.Windows.Forms.Label()
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.Location = New System.Drawing.Point(16, 26)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(123, 13)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "The salesperson’s code:"
        '
        'codeTextBox
        '
        Me.codeTextBox.Location = New System.Drawing.Point(156, 23)
        Me.codeTextBox.Name = "codeTextBox"
        Me.codeTextBox.Size = New System.Drawing.Size(100, 20)
        Me.codeTextBox.TabIndex = 1
        '
        'Label2
        '
        Me.Label2.AutoSize = True
        Me.Label2.Location = New System.Drawing.Point(45, 52)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(94, 13)
        Me.Label2.TabIndex = 0
        Me.Label2.Text = "The sales amount:"
        '
        'salesTextBox
        '
        Me.salesTextBox.Location = New System.Drawing.Point(156, 49)
        Me.salesTextBox.Name = "salesTextBox"
        Me.salesTextBox.Size = New System.Drawing.Size(100, 20)
        Me.salesTextBox.TabIndex = 2
        '
        'btnSave
        '
        Me.btnSave.Location = New System.Drawing.Point(156, 120)
        Me.btnSave.Name = "btnSave"
        Me.btnSave.Size = New System.Drawing.Size(100, 23)
        Me.btnSave.TabIndex = 3
        Me.btnSave.Text = "Save"
        Me.btnSave.UseVisualStyleBackColor = True
        '
        'messageLabel
        '
        Me.messageLabel.AutoSize = True
        Me.messageLabel.Location = New System.Drawing.Point(77, 87)
        Me.messageLabel.Name = "messageLabel"
        Me.messageLabel.Size = New System.Drawing.Size(0, 13)
        Me.messageLabel.TabIndex = 0
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(284, 155)
        Me.Controls.Add(Me.btnSave)
        Me.Controls.Add(Me.salesTextBox)
        Me.Controls.Add(Me.messageLabel)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.codeTextBox)
        Me.Controls.Add(Me.Label1)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.MaximizeBox = False
        Me.Name = "Form1"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "Sales Account"
        Me.ResumeLayout(False)
        Me.PerformLayout()


    End Sub
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents codeTextBox As System.Windows.Forms.TextBox
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents salesTextBox As System.Windows.Forms.TextBox
    Friend WithEvents btnSave As System.Windows.Forms.Button
    Friend WithEvents messageLabel As System.Windows.Forms.Label


End Class

Form1.vb

Public Class Form1
    ''' <summary>
    ''' Save button
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
        Dim code As Integer = 0
        Dim sales As Decimal = 0
        If Integer.TryParse(codeTextBox.Text, code) = False Then
            messageLabel.Text = "Error: enter a correct code."
            codeTextBox.Clear()
            codeTextBox.Focus()
            Return
        End If
        If Decimal.TryParse(salesTextBox.Text, sales) = False Then
            messageLabel.Text = "Error: enter a correct sales."
            salesTextBox.Clear()
            salesTextBox.Focus()
            Return
        End If
        messageLabel.Text = "Code: " + code.ToString() + ", total sales: " + sales.ToString("C")
    End Sub
End Class