Get value from the NumericUpDown control : NumericUpDown « GUI « VB.Net Tutorial






Get value from  the NumericUpDown control
Imports System.Windows.Forms

public class GetValueFromNumericUpDown
   public Shared Sub Main
        Application.Run(New FrmInterestCalculator)
   End Sub
End class

Public Class FrmInterestCalculator

   Private Sub btnCalculate_Click(ByVal sender As System.Object, _
      ByVal e As System.EventArgs) Handles btnCalculate.Click
      
      Console.WriteLine(Convert.ToInt32(updYear.Value))

   End Sub
End Class

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class FrmInterestCalculator
   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)
      If disposing AndAlso components IsNot Nothing Then
         components.Dispose()
      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.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
      Me.btnCalculate = New System.Windows.Forms.Button
      Me.txtDisplay = New System.Windows.Forms.TextBox
      Me.lblBalance = New System.Windows.Forms.Label
      Me.updYear = New System.Windows.Forms.NumericUpDown
      Me.lblYears = New System.Windows.Forms.Label
      Me.txtInterest = New System.Windows.Forms.TextBox
      Me.lblInterest = New System.Windows.Forms.Label
      Me.txtPrincipal = New System.Windows.Forms.TextBox
      Me.lblPrincipal = New System.Windows.Forms.Label
      CType(Me.updYear, System.ComponentModel.ISupportInitialize).BeginInit()
      Me.SuspendLayout()
      '
      'btnCalculate
      '
      Me.btnCalculate.Location = New System.Drawing.Point(197, 14)
      Me.btnCalculate.Name = "btnCalculate"
      Me.btnCalculate.Size = New System.Drawing.Size(75, 23)
      Me.btnCalculate.TabIndex = 17
      Me.btnCalculate.Text = "Calculate"
      '
      'txtDisplay
      '
      Me.txtDisplay.BackColor = System.Drawing.SystemColors.Control
      Me.txtDisplay.Location = New System.Drawing.Point(18, 170)
      Me.txtDisplay.Multiline = True
      Me.txtDisplay.Name = "txtDisplay"
      Me.txtDisplay.ReadOnly = True
      Me.txtDisplay.ScrollBars = System.Windows.Forms.ScrollBars.Vertical
      Me.txtDisplay.Size = New System.Drawing.Size(254, 104)
      Me.txtDisplay.TabIndex = 16
      '
      'lblBalance
      '
      Me.lblBalance.AutoSize = True
      Me.lblBalance.Location = New System.Drawing.Point(17, 143)
      Me.lblBalance.Name = "lblBalance"
      Me.lblBalance.Size = New System.Drawing.Size(122, 13)
      Me.lblBalance.TabIndex = 15
      Me.lblBalance.Text = "Yearly account balance:"
      '
      'updYear
      '
      Me.updYear.Location = New System.Drawing.Point(85, 95)
      Me.updYear.Maximum = New Decimal(New Integer() {10, 0, 0, 0})
      Me.updYear.Minimum = New Decimal(New Integer() {1, 0, 0, 0})
      Me.updYear.Name = "updYear"
      Me.updYear.ReadOnly = True
      Me.updYear.Size = New System.Drawing.Size(100, 20)
      Me.updYear.TabIndex = 14
      Me.updYear.TextAlign = System.Windows.Forms.HorizontalAlignment.Right
      Me.updYear.Value = New Decimal(New Integer() {1, 0, 0, 0})
      '
      'lblYears
      '
      Me.lblYears.AutoSize = True
      Me.lblYears.Location = New System.Drawing.Point(17, 102)
      Me.lblYears.Name = "lblYears"
      Me.lblYears.Size = New System.Drawing.Size(37, 13)
      Me.lblYears.TabIndex = 13
      Me.lblYears.Text = "Years:"
      '
      'txtInterest
      '
      Me.txtInterest.Location = New System.Drawing.Point(85, 58)
      Me.txtInterest.Name = "txtInterest"
      Me.txtInterest.Size = New System.Drawing.Size(100, 20)
      Me.txtInterest.TabIndex = 12
      Me.txtInterest.TextAlign = System.Windows.Forms.HorizontalAlignment.Right
      '
      'lblInterest
      '
      Me.lblInterest.AutoSize = True
      Me.lblInterest.Location = New System.Drawing.Point(17, 61)
      Me.lblInterest.Name = "lblInterest"
      Me.lblInterest.Size = New System.Drawing.Size(71, 13)
      Me.lblInterest.TabIndex = 11
      Me.lblInterest.Text = "Interest Rate:"
      '
      'txtPrincipal
      '
      Me.txtPrincipal.Location = New System.Drawing.Point(85, 17)
      Me.txtPrincipal.Name = "txtPrincipal"
      Me.txtPrincipal.Size = New System.Drawing.Size(100, 20)
      Me.txtPrincipal.TabIndex = 10
      Me.txtPrincipal.TextAlign = System.Windows.Forms.HorizontalAlignment.Right
      '
      'lblPrincipal
      '
      Me.lblPrincipal.AutoSize = True
      Me.lblPrincipal.Location = New System.Drawing.Point(17, 20)
      Me.lblPrincipal.Name = "lblPrincipal"
      Me.lblPrincipal.Size = New System.Drawing.Size(50, 13)
      Me.lblPrincipal.TabIndex = 9
      Me.lblPrincipal.Text = "Principal:"
      '
      'FrmInterestCalculator
      '
      Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
      Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
      Me.ClientSize = New System.Drawing.Size(289, 288)
      Me.Controls.Add(Me.btnCalculate)
      Me.Controls.Add(Me.txtDisplay)
      Me.Controls.Add(Me.lblBalance)
      Me.Controls.Add(Me.updYear)
      Me.Controls.Add(Me.lblYears)
      Me.Controls.Add(Me.txtInterest)
      Me.Controls.Add(Me.lblInterest)
      Me.Controls.Add(Me.txtPrincipal)
      Me.Controls.Add(Me.lblPrincipal)
      Me.Name = "FrmInterestCalculator"
      Me.Text = "Interest Calculator"
      CType(Me.updYear, System.ComponentModel.ISupportInitialize).EndInit()
      Me.ResumeLayout(False)
      Me.PerformLayout()

   End Sub
   Friend WithEvents btnCalculate As System.Windows.Forms.Button
   Friend WithEvents txtDisplay As System.Windows.Forms.TextBox
   Friend WithEvents lblBalance As System.Windows.Forms.Label
   Friend WithEvents updYear As System.Windows.Forms.NumericUpDown
   Friend WithEvents lblYears As System.Windows.Forms.Label
   Friend WithEvents txtInterest As System.Windows.Forms.TextBox
   Friend WithEvents lblInterest As System.Windows.Forms.Label
   Friend WithEvents txtPrincipal As System.Windows.Forms.TextBox
   Friend WithEvents lblPrincipal As System.Windows.Forms.Label

End Class








14.11.NumericUpDown
14.11.1.ScrollBars - NumericUpDowns
14.11.2.Get value from the NumericUpDown controlGet value from  the NumericUpDown control