Csharp/CSharp Tutorial/GUI Windows Forms/NumericUpDown

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Get value from NumericUpDown

<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class UpDownForm : System.Windows.Forms.Form {

 private System.ruponentModel.Container components = null;
 private System.Windows.Forms.Label lblCurrSel;
 private System.Windows.Forms.Button btnGetSelections;
 private System.Windows.Forms.Label label2;
 private System.Windows.Forms.Label label1;
 private System.Windows.Forms.NumericUpDown numericUpDown;
 private System.Windows.Forms.DomainUpDown domainUpDown;
 public UpDownForm()
 {
   InitializeComponent();
   domainUpDown.SelectedIndex = 2;
 }
 protected override void Dispose( bool disposing )
 {
   if( disposing )
   {
     if (components != null) 
     {
       components.Dispose();
     }
   }
   base.Dispose( disposing );
 }
 private void InitializeComponent()
 {
   this.label1 = new System.Windows.Forms.Label();
   this.label2 = new System.Windows.Forms.Label();
   this.numericUpDown = new System.Windows.Forms.NumericUpDown();
   this.domainUpDown = new System.Windows.Forms.DomainUpDown();
   this.btnGetSelections = new System.Windows.Forms.Button();
   this.lblCurrSel = new System.Windows.Forms.Label();
   ((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).BeginInit();
   this.SuspendLayout();
   // 
   // label1
   // 
   this.label1.Font = new System.Drawing.Font("Verdana", 12F);
   this.label1.Location = new System.Drawing.Point(8, 24);
   this.label1.Name = "label1";
   this.label1.Size = new System.Drawing.Size(224, 32);
   this.label1.TabIndex = 2;
   this.label1.Text = "Domain UpDown Control";
   // 
   // label2
   // 
   this.label2.Font = new System.Drawing.Font("Verdana", 12F);
   this.label2.Location = new System.Drawing.Point(8, 80);
   this.label2.Name = "label2";
   this.label2.Size = new System.Drawing.Size(232, 32);
   this.label2.TabIndex = 3;
   this.label2.Text = "Numeric UpDown Control";
   // 
   // numericUpDown
   // 
   this.numericUpDown.Location = new System.Drawing.Point(264, 80);
   this.numericUpDown.Maximum = new System.Decimal(new int[] {
                                   5000,
                                   0,
                                   0,
                                   0});
   this.numericUpDown.Name = "numericUpDown";
   this.numericUpDown.Size = new System.Drawing.Size(168, 20);
   this.numericUpDown.TabIndex = 1;
   this.numericUpDown.ThousandsSeparator = true;
   this.numericUpDown.UpDownAlign = System.Windows.Forms.LeftRightAlignment.Left;
   this.numericUpDown.ValueChanged += new System.EventHandler(this.numericUpDown_ValueChanged);
   // 
   // domainUpDown
   // 
   this.domainUpDown.Items.Add("A");
   this.domainUpDown.Items.Add("B");
   this.domainUpDown.Items.Add("C");
   this.domainUpDown.Items.Add("D");
   this.domainUpDown.Location = new System.Drawing.Point(264, 24);
   this.domainUpDown.Name = "domainUpDown";
   this.domainUpDown.Size = new System.Drawing.Size(168, 20);
   this.domainUpDown.Sorted = true;
   this.domainUpDown.TabIndex = 0;
   this.domainUpDown.Text = "domainUpDown1";
   this.domainUpDown.Wrap = true;
   this.domainUpDown.SelectedItemChanged += new System.EventHandler(this.domainUpDown_SelectedItemChanged);
   // 
   // btnGetSelections
   // 
   this.btnGetSelections.Location = new System.Drawing.Point(16, 136);
   this.btnGetSelections.Name = "btnGetSelections";
   this.btnGetSelections.Size = new System.Drawing.Size(136, 24);
   this.btnGetSelections.TabIndex = 4;
   this.btnGetSelections.Text = "Get Current Selections";
   this.btnGetSelections.Click += new System.EventHandler(this.btnGetSelections_Click);
   // 
   // lblCurrSel
   // 
   this.lblCurrSel.BackColor = System.Drawing.Color.Linen;
   this.lblCurrSel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
   this.lblCurrSel.Location = new System.Drawing.Point(176, 120);
   this.lblCurrSel.Name = "lblCurrSel";
   this.lblCurrSel.Size = new System.Drawing.Size(256, 48);
   this.lblCurrSel.TabIndex = 5;
   // 
   // UpDownForm
   // 
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(448, 181);
   this.Controls.Add(this.lblCurrSel);
   this.Controls.Add(this.btnGetSelections);
   this.Controls.Add(this.label2);
   this.Controls.Add(this.label1);
   this.Controls.Add(this.numericUpDown);
   this.Controls.Add(this.domainUpDown);
   this.Name = "UpDownForm";
   this.Text = "Spin Controls";
   ((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).EndInit();
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main() 
 {
   Application.Run(new UpDownForm());
 }
 protected void numericUpDown_ValueChanged (object sender, System.EventArgs e)
 {
   this.Text = "You changed the numeric value...";
 }
 protected void domainUpDown_SelectedItemChanged (object sender, System.EventArgs e)
 {
   this.Text = "You changed the string value...";
 }
 protected void btnGetSelections_Click (object sender, System.EventArgs e)
 {
   // Get info from updowns...
   lblCurrSel.Text = string.Format("String: {0}\nNumber: {1}", domainUpDown.Text, numericUpDown.Value);
 }

}</source>

NumericUpDown: set value, Minimum, Maximum, Increment, Decimal places, Readonly, TextAlign

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class NumericUpDowns : Form {

 NumericUpDown nupdwn;
 public NumericUpDowns()
 {
   Size = new Size(480,580);
   nupdwn = new NumericUpDown();
   nupdwn.Parent = this;
   nupdwn.Location = new Point(50, 50);
   nupdwn.Size = new Size(60,20);
   nupdwn.Value = 1;
   nupdwn.Minimum = -10;
   nupdwn.Maximum = 10;
   nupdwn.Increment = .25m;    //  decimal
   nupdwn.DecimalPlaces = 2;
   nupdwn.ReadOnly = true;
   nupdwn.TextAlign = HorizontalAlignment.Right;
   nupdwn.ValueChanged += new EventHandler(nupdwn_OnValueChanged);
 }  
 private void nupdwn_OnValueChanged(object sender, EventArgs e)
 {
   Console.WriteLine(nupdwn.Value);
 }
 static void Main() 
 {
   Application.Run(new NumericUpDowns());
 }

}</source>

NumericUpDown validated event

<source lang="csharp">using System; using System.ruponentModel; using System.Drawing; using System.Windows.Forms; using System.IO; using System.Text; class DialogValid : System.Windows.Forms.Form {

   private Button okButton;
   private Button cancelButton;
   private NumericUpDown num;
   public decimal Num {
       get { return num.Value; }
       set { num.Value = value;    }
   }
   void OnValidating(Object sender, CancelEventArgs e)
   {
       MessageBox.Show("NumericUpDown is validating");
   } 
   void OnValid(Object sender,EventArgs e)
   {
       MessageBox.Show("NumericUpDown is valid");
   } 
   public DialogValid()
   {
       Size = new Size(400,100);
       FormBorderStyle = FormBorderStyle.FixedDialog;
       Text = "Dialog test";
       okButton = new Button();        
       okButton.DialogResult = DialogResult.OK;
       okButton.Location = new Point(20,28);
       okButton.Size = new Size(80,25);
       okButton.Text = "OK";
       Controls.Add(okButton);
       cancelButton = new Button();
       cancelButton.Location = new Point(300,28);
       cancelButton.Size = new Size(80,25);
       cancelButton.Text = "Cancel";
       cancelButton.DialogResult = DialogResult.Cancel;
       Controls.Add(cancelButton);
       Label l = new Label();
       l.Text = "NumericUpDown";
       l.Location = new Point(20,5);
       l.Size = new Size(120,25);
       Controls.Add(l);
       num = new NumericUpDown();
       num.Location = new Point(140,5);
       num.Size = new Size(80,25);
       num.Minimum = (decimal)10.0;
       num.Maximum = (decimal)100.0;
       num.Value = (decimal)10.0;
       
       num.Validating+=new CancelEventHandler(OnValidating);
       num.Validated+=new EventHandler(OnValid);
       Controls.Add(num);
   }

} public class NumericUpDownValidationEvent{

   public static void Main()
   {
       DialogValid dlg = new DialogValid();
       DialogResult r = dlg.ShowDialog();
       
       Console.WriteLine(dlg.Num);
   }

}</source>

NumericUpDown validating event

<source lang="csharp">using System; using System.ruponentModel; using System.Drawing; using System.Windows.Forms; using System.IO; using System.Text; class DialogValid : System.Windows.Forms.Form {

   private Button okButton;
   private Button cancelButton;
   private NumericUpDown num;
   public decimal Num {
       get { return num.Value; }
       set { num.Value = value;    }
   }
   void OnValidating(Object sender, CancelEventArgs e)
   {
       MessageBox.Show("NumericUpDown is validating");
   } 
   void OnValid(Object sender,EventArgs e)
   {
       MessageBox.Show("NumericUpDown is valid");
   } 
   public DialogValid()
   {
       Size = new Size(400,100);
       FormBorderStyle = FormBorderStyle.FixedDialog;
       Text = "Dialog test";
       okButton = new Button();        
       okButton.DialogResult = DialogResult.OK;
       okButton.Location = new Point(20,28);
       okButton.Size = new Size(80,25);
       okButton.Text = "OK";
       Controls.Add(okButton);
       cancelButton = new Button();
       cancelButton.Location = new Point(300,28);
       cancelButton.Size = new Size(80,25);
       cancelButton.Text = "Cancel";
       cancelButton.DialogResult = DialogResult.Cancel;
       Controls.Add(cancelButton);
       Label l = new Label();
       l.Text = "NumericUpDown";
       l.Location = new Point(20,5);
       l.Size = new Size(120,25);
       Controls.Add(l);
       num = new NumericUpDown();
       num.Location = new Point(140,5);
       num.Size = new Size(80,25);
       num.Minimum = (decimal)10.0;
       num.Maximum = (decimal)100.0;
       num.Value = (decimal)10.0;
       
       num.Validating+=new CancelEventHandler(OnValidating);
       num.Validated+=new EventHandler(OnValid);
       Controls.Add(num);
   }

} public class NumericUpDownValidationEvent{

   public static void Main()
   {
       DialogValid dlg = new DialogValid();
       DialogResult r = dlg.ShowDialog();
       
       Console.WriteLine(dlg.Num);
   }

}</source>

NumericUpDown: value changed event

<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class UpDownForm : System.Windows.Forms.Form {

 private System.ruponentModel.Container components = null;
 private System.Windows.Forms.Label lblCurrSel;
 private System.Windows.Forms.Button btnGetSelections;
 private System.Windows.Forms.Label label2;
 private System.Windows.Forms.Label label1;
 private System.Windows.Forms.NumericUpDown numericUpDown;
 private System.Windows.Forms.DomainUpDown domainUpDown;
 public UpDownForm()
 {
   InitializeComponent();
   domainUpDown.SelectedIndex = 2;
 }
 protected override void Dispose( bool disposing )
 {
   if( disposing )
   {
     if (components != null) 
     {
       components.Dispose();
     }
   }
   base.Dispose( disposing );
 }
 private void InitializeComponent()
 {
   this.label1 = new System.Windows.Forms.Label();
   this.label2 = new System.Windows.Forms.Label();
   this.numericUpDown = new System.Windows.Forms.NumericUpDown();
   this.domainUpDown = new System.Windows.Forms.DomainUpDown();
   this.btnGetSelections = new System.Windows.Forms.Button();
   this.lblCurrSel = new System.Windows.Forms.Label();
   ((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).BeginInit();
   this.SuspendLayout();
   // 
   // label1
   // 
   this.label1.Font = new System.Drawing.Font("Verdana", 12F);
   this.label1.Location = new System.Drawing.Point(8, 24);
   this.label1.Name = "label1";
   this.label1.Size = new System.Drawing.Size(224, 32);
   this.label1.TabIndex = 2;
   this.label1.Text = "Domain UpDown Control";
   // 
   // label2
   // 
   this.label2.Font = new System.Drawing.Font("Verdana", 12F);
   this.label2.Location = new System.Drawing.Point(8, 80);
   this.label2.Name = "label2";
   this.label2.Size = new System.Drawing.Size(232, 32);
   this.label2.TabIndex = 3;
   this.label2.Text = "Numeric UpDown Control";
   // 
   // numericUpDown
   // 
   this.numericUpDown.Location = new System.Drawing.Point(264, 80);
   this.numericUpDown.Maximum = new System.Decimal(new int[] {
                                   5000,
                                   0,
                                   0,
                                   0});
   this.numericUpDown.Name = "numericUpDown";
   this.numericUpDown.Size = new System.Drawing.Size(168, 20);
   this.numericUpDown.TabIndex = 1;
   this.numericUpDown.ThousandsSeparator = true;
   this.numericUpDown.UpDownAlign = System.Windows.Forms.LeftRightAlignment.Left;
   this.numericUpDown.ValueChanged += new System.EventHandler(this.numericUpDown_ValueChanged);
   // 
   // domainUpDown
   // 
   this.domainUpDown.Items.Add("A");
   this.domainUpDown.Items.Add("B");
   this.domainUpDown.Items.Add("C");
   this.domainUpDown.Items.Add("D");
   this.domainUpDown.Location = new System.Drawing.Point(264, 24);
   this.domainUpDown.Name = "domainUpDown";
   this.domainUpDown.Size = new System.Drawing.Size(168, 20);
   this.domainUpDown.Sorted = true;
   this.domainUpDown.TabIndex = 0;
   this.domainUpDown.Text = "domainUpDown1";
   this.domainUpDown.Wrap = true;
   this.domainUpDown.SelectedItemChanged += new System.EventHandler(this.domainUpDown_SelectedItemChanged);
   // 
   // btnGetSelections
   // 
   this.btnGetSelections.Location = new System.Drawing.Point(16, 136);
   this.btnGetSelections.Name = "btnGetSelections";
   this.btnGetSelections.Size = new System.Drawing.Size(136, 24);
   this.btnGetSelections.TabIndex = 4;
   this.btnGetSelections.Text = "Get Current Selections";
   this.btnGetSelections.Click += new System.EventHandler(this.btnGetSelections_Click);
   // 
   // lblCurrSel
   // 
   this.lblCurrSel.BackColor = System.Drawing.Color.Linen;
   this.lblCurrSel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
   this.lblCurrSel.Location = new System.Drawing.Point(176, 120);
   this.lblCurrSel.Name = "lblCurrSel";
   this.lblCurrSel.Size = new System.Drawing.Size(256, 48);
   this.lblCurrSel.TabIndex = 5;
   // 
   // UpDownForm
   // 
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(448, 181);
   this.Controls.Add(this.lblCurrSel);
   this.Controls.Add(this.btnGetSelections);
   this.Controls.Add(this.label2);
   this.Controls.Add(this.label1);
   this.Controls.Add(this.numericUpDown);
   this.Controls.Add(this.domainUpDown);
   this.Name = "UpDownForm";
   this.Text = "Spin Controls";
   ((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).EndInit();
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main() 
 {
   Application.Run(new UpDownForm());
 }
 protected void numericUpDown_ValueChanged (object sender, System.EventArgs e)
 {
   this.Text = "You changed the numeric value...";
 }
 protected void domainUpDown_SelectedItemChanged (object sender, System.EventArgs e)
 {
   this.Text = "You changed the string value...";
 }
 protected void btnGetSelections_Click (object sender, System.EventArgs e)
 {
   // Get info from updowns...
   lblCurrSel.Text = string.Format("String: {0}\nNumber: {1}", domainUpDown.Text, numericUpDown.Value);
 }

}</source>

NumericUpDown Value changed event handler

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class NumericUpDowns : Form {

 NumericUpDown nupdwn;
 public NumericUpDowns()
 {
   Size = new Size(480,580);
   nupdwn = new NumericUpDown();
   nupdwn.Parent = this;
   nupdwn.Location = new Point(50, 50);
   nupdwn.Size = new Size(60,20);
   nupdwn.Value = 1;
   nupdwn.Minimum = -10;
   nupdwn.Maximum = 10;
   nupdwn.Increment = .25m;    //  decimal
   nupdwn.DecimalPlaces = 2;
   nupdwn.ReadOnly = true;
   nupdwn.TextAlign = HorizontalAlignment.Right;
   nupdwn.ValueChanged += new EventHandler(nupdwn_OnValueChanged);
 }  
 private void nupdwn_OnValueChanged(object sender, EventArgs e)
 {
   Console.WriteLine(nupdwn.Value);
 }
 static void Main() 
 {
   Application.Run(new NumericUpDowns());
 }

}</source>