Csharp/C Sharp by API/System.Windows.Forms/MaskedTextBox

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MaskedTextBox.BeepOnError

<source lang="csharp">

using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class MainWindow : Form {

   public MainWindow() {
       InitializeComponent();
       CreateLabelControl();
   }
   private void btnDisplayData_Click(object sender, EventArgs e) {
       string textBoxData = "";
       textBoxData += string.Format("MultiLine:  {0}\n", txtMultiline.Text);
       textBoxData += string.Format("\nPassword:  {0}\n", txtPassword.Text);
       textBoxData += string.Format("\nUppercase:  {0}\n", txtUpperCase.Text);
       textBoxData += string.Format("\nMasked:  {0}\n", txtMaskedTextBox.Text);
       MessageBox.Show(textBoxData, "Here is the data in your TextBoxes");
   }
   private void CreateLabelControl() {
       Label lblInstructions = new Label();
       lblInstructions.Text = "Please enter values in all the text boxes";
       lblInstructions.Font = new Font("Times New Roman", 9.75F, FontStyle.Bold);
       lblInstructions.AutoSize = true;
       lblInstructions.Location = new System.Drawing.Point(16, 13);
       lblInstructions.Size = new System.Drawing.Size(240, 16);
       this.Controls.Add(lblInstructions);
   }
   private void txtMaskedTextBox_MaskInputRejected(object sender, MaskInputRejectedEventArgs e) {
       this.Text = string.Format("Error: {0}", e.RejectionHint);
   }
   private void txtMaskedTextBox_KeyDown(object sender, KeyEventArgs e) {
       this.Text = "Labels and TextBoxes";
   }
   private void InitializeComponent() {
       this.lblPassword = new System.Windows.Forms.Label();
       this.txtPassword = new System.Windows.Forms.TextBox();
       this.lblMultiline = new System.Windows.Forms.Label();
       this.txtMultiline = new System.Windows.Forms.TextBox();
       this.lblUpperCaseOnly = new System.Windows.Forms.Label();
       this.txtUpperCase = new System.Windows.Forms.TextBox();
       this.lblMaskedTextBox = new System.Windows.Forms.Label();
       this.txtMaskedTextBox = new System.Windows.Forms.MaskedTextBox();
       this.btnDisplayData = new System.Windows.Forms.Button();
       this.SuspendLayout();
       this.lblPassword.AutoSize = true;
       this.lblPassword.Location = new System.Drawing.Point(13, 43);
       this.lblPassword.Name = "lblPassword";
       this.lblPassword.Size = new System.Drawing.Size(94, 13);
       this.lblPassword.TabIndex = 0;
       this.lblPassword.Text = "&Password TextBox:";
       this.txtPassword.Location = new System.Drawing.Point(125, 43);
       this.txtPassword.Name = "txtPassword";
       this.txtPassword.PasswordChar = "*";
       this.txtPassword.Size = new System.Drawing.Size(220, 20);
       this.txtPassword.TabIndex = 1;
       this.lblMultiline.AutoSize = true;
       this.lblMultiline.Location = new System.Drawing.Point(14, 80);
       this.lblMultiline.Name = "lblMultiline";
       this.lblMultiline.Size = new System.Drawing.Size(86, 13);
       this.lblMultiline.TabIndex = 2;
       this.lblMultiline.Text = "&Multiline TextBox:";
       this.txtMultiline.Location = new System.Drawing.Point(125, 80);
       this.txtMultiline.Multiline = true;
       this.txtMultiline.Name = "txtMultiline";
       this.txtMultiline.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
       this.txtMultiline.Size = new System.Drawing.Size(220, 52);
       this.txtMultiline.TabIndex = 3;
       this.lblUpperCaseOnly.AutoSize = true;
       this.lblUpperCaseOnly.Location = new System.Drawing.Point(15, 157);
       this.lblUpperCaseOnly.Name = "lblUpperCaseOnly";
       this.lblUpperCaseOnly.Size = new System.Drawing.Size(82, 13);
       this.lblUpperCaseOnly.TabIndex = 4;
       this.lblUpperCaseOnly.Text = "&Uppercase Only:";
       this.txtUpperCase.CharacterCasing = System.Windows.Forms.CharacterCasing.Upper;
       this.txtUpperCase.Location = new System.Drawing.Point(125, 157);
       this.txtUpperCase.Name = "txtUpperCase";
       this.txtUpperCase.Size = new System.Drawing.Size(220, 20);
       this.txtUpperCase.TabIndex = 5;
       // 
       this.lblMaskedTextBox.AutoSize = true;
       this.lblMaskedTextBox.Location = new System.Drawing.Point(15, 199);
       this.lblMaskedTextBox.Name = "lblMaskedTextBox";
       this.lblMaskedTextBox.Size = new System.Drawing.Size(83, 13);
       this.lblMaskedTextBox.TabIndex = 7;
       this.lblMaskedTextBox.Text = "Mas&ked TextBox";
       // 
       this.txtMaskedTextBox.BeepOnError = true;
       this.txtMaskedTextBox.CausesValidation = false;
       this.txtMaskedTextBox.Location = new System.Drawing.Point(125, 199);
       this.txtMaskedTextBox.Mask = "(999) 000-0000";
       this.txtMaskedTextBox.Name = "txtMaskedTextBox";
       this.txtMaskedTextBox.Size = new System.Drawing.Size(220, 20);
       this.txtMaskedTextBox.TabIndex = 8;
       this.txtMaskedTextBox.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtMaskedTextBox_KeyDown);
       this.txtMaskedTextBox.MaskInputRejected += new System.Windows.Forms.MaskInputRejectedEventHandler(this.txtMaskedTextBox_MaskInputRejected);
       // 
       this.btnDisplayData.Location = new System.Drawing.Point(257, 236);
       this.btnDisplayData.Name = "btnDisplayData";
       this.btnDisplayData.Size = new System.Drawing.Size(88, 23);
       this.btnDisplayData.TabIndex = 6;
       this.btnDisplayData.Text = "Display Data";
       this.btnDisplayData.Click += new System.EventHandler(this.btnDisplayData_Click);
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(357, 276);
       this.Controls.Add(this.txtMaskedTextBox);
       this.Controls.Add(this.lblMaskedTextBox);
       this.Controls.Add(this.btnDisplayData);
       this.Controls.Add(this.txtUpperCase);
       this.Controls.Add(this.lblUpperCaseOnly);
       this.Controls.Add(this.txtMultiline);
       this.Controls.Add(this.lblMultiline);
       this.Controls.Add(this.txtPassword);
       this.Controls.Add(this.lblPassword);
       this.Text = "Fun with Labels and TextBoxes";
       this.ResumeLayout(false);
       this.PerformLayout();
   }
   private System.Windows.Forms.Label lblPassword;
   private System.Windows.Forms.TextBox txtPassword;
   private System.Windows.Forms.Label lblMultiline;
   private System.Windows.Forms.TextBox txtMultiline;
   private System.Windows.Forms.Label lblUpperCaseOnly;
   private System.Windows.Forms.TextBox txtUpperCase;
   private System.Windows.Forms.Label lblMaskedTextBox;
   private System.Windows.Forms.MaskedTextBox txtMaskedTextBox;
   private System.Windows.Forms.Button btnDisplayData;
   [STAThread]
   static void Main() {
       Application.EnableVisualStyles();
       Application.Run(new MainWindow());
   }

}

 </source>


MaskedTextBox.CausesValidation

<source lang="csharp">

using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class MainWindow : Form {

   public MainWindow() {
       InitializeComponent();
       CreateLabelControl();
   }
   private void btnDisplayData_Click(object sender, EventArgs e) {
       string textBoxData = "";
       textBoxData += string.Format("MultiLine:  {0}\n", txtMultiline.Text);
       textBoxData += string.Format("\nPassword:  {0}\n", txtPassword.Text);
       textBoxData += string.Format("\nUppercase:  {0}\n", txtUpperCase.Text);
       textBoxData += string.Format("\nMasked:  {0}\n", txtMaskedTextBox.Text);
       MessageBox.Show(textBoxData, "Here is the data in your TextBoxes");
   }
   private void CreateLabelControl() {
       Label lblInstructions = new Label();
       lblInstructions.Text = "Please enter values in all the text boxes";
       lblInstructions.Font = new Font("Times New Roman", 9.75F, FontStyle.Bold);
       lblInstructions.AutoSize = true;
       lblInstructions.Location = new System.Drawing.Point(16, 13);
       lblInstructions.Size = new System.Drawing.Size(240, 16);
       this.Controls.Add(lblInstructions);
   }
   private void txtMaskedTextBox_MaskInputRejected(object sender, MaskInputRejectedEventArgs e) {
       this.Text = string.Format("Error: {0}", e.RejectionHint);
   }
   private void txtMaskedTextBox_KeyDown(object sender, KeyEventArgs e) {
       this.Text = "Labels and TextBoxes";
   }
   private void InitializeComponent() {
       this.lblPassword = new System.Windows.Forms.Label();
       this.txtPassword = new System.Windows.Forms.TextBox();
       this.lblMultiline = new System.Windows.Forms.Label();
       this.txtMultiline = new System.Windows.Forms.TextBox();
       this.lblUpperCaseOnly = new System.Windows.Forms.Label();
       this.txtUpperCase = new System.Windows.Forms.TextBox();
       this.lblMaskedTextBox = new System.Windows.Forms.Label();
       this.txtMaskedTextBox = new System.Windows.Forms.MaskedTextBox();
       this.btnDisplayData = new System.Windows.Forms.Button();
       this.SuspendLayout();
       this.lblPassword.AutoSize = true;
       this.lblPassword.Location = new System.Drawing.Point(13, 43);
       this.lblPassword.Name = "lblPassword";
       this.lblPassword.Size = new System.Drawing.Size(94, 13);
       this.lblPassword.TabIndex = 0;
       this.lblPassword.Text = "&Password TextBox:";
       this.txtPassword.Location = new System.Drawing.Point(125, 43);
       this.txtPassword.Name = "txtPassword";
       this.txtPassword.PasswordChar = "*";
       this.txtPassword.Size = new System.Drawing.Size(220, 20);
       this.txtPassword.TabIndex = 1;
       this.lblMultiline.AutoSize = true;
       this.lblMultiline.Location = new System.Drawing.Point(14, 80);
       this.lblMultiline.Name = "lblMultiline";
       this.lblMultiline.Size = new System.Drawing.Size(86, 13);
       this.lblMultiline.TabIndex = 2;
       this.lblMultiline.Text = "&Multiline TextBox:";
       this.txtMultiline.Location = new System.Drawing.Point(125, 80);
       this.txtMultiline.Multiline = true;
       this.txtMultiline.Name = "txtMultiline";
       this.txtMultiline.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
       this.txtMultiline.Size = new System.Drawing.Size(220, 52);
       this.txtMultiline.TabIndex = 3;
       this.lblUpperCaseOnly.AutoSize = true;
       this.lblUpperCaseOnly.Location = new System.Drawing.Point(15, 157);
       this.lblUpperCaseOnly.Name = "lblUpperCaseOnly";
       this.lblUpperCaseOnly.Size = new System.Drawing.Size(82, 13);
       this.lblUpperCaseOnly.TabIndex = 4;
       this.lblUpperCaseOnly.Text = "&Uppercase Only:";
       this.txtUpperCase.CharacterCasing = System.Windows.Forms.CharacterCasing.Upper;
       this.txtUpperCase.Location = new System.Drawing.Point(125, 157);
       this.txtUpperCase.Name = "txtUpperCase";
       this.txtUpperCase.Size = new System.Drawing.Size(220, 20);
       this.txtUpperCase.TabIndex = 5;
       // 
       this.lblMaskedTextBox.AutoSize = true;
       this.lblMaskedTextBox.Location = new System.Drawing.Point(15, 199);
       this.lblMaskedTextBox.Name = "lblMaskedTextBox";
       this.lblMaskedTextBox.Size = new System.Drawing.Size(83, 13);
       this.lblMaskedTextBox.TabIndex = 7;
       this.lblMaskedTextBox.Text = "Mas&ked TextBox";
       // 
       this.txtMaskedTextBox.BeepOnError = true;
       this.txtMaskedTextBox.CausesValidation = false;
       this.txtMaskedTextBox.Location = new System.Drawing.Point(125, 199);
       this.txtMaskedTextBox.Mask = "(999) 000-0000";
       this.txtMaskedTextBox.Name = "txtMaskedTextBox";
       this.txtMaskedTextBox.Size = new System.Drawing.Size(220, 20);
       this.txtMaskedTextBox.TabIndex = 8;
       this.txtMaskedTextBox.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtMaskedTextBox_KeyDown);
       this.txtMaskedTextBox.MaskInputRejected += new System.Windows.Forms.MaskInputRejectedEventHandler(this.txtMaskedTextBox_MaskInputRejected);
       // 
       this.btnDisplayData.Location = new System.Drawing.Point(257, 236);
       this.btnDisplayData.Name = "btnDisplayData";
       this.btnDisplayData.Size = new System.Drawing.Size(88, 23);
       this.btnDisplayData.TabIndex = 6;
       this.btnDisplayData.Text = "Display Data";
       this.btnDisplayData.Click += new System.EventHandler(this.btnDisplayData_Click);
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(357, 276);
       this.Controls.Add(this.txtMaskedTextBox);
       this.Controls.Add(this.lblMaskedTextBox);
       this.Controls.Add(this.btnDisplayData);
       this.Controls.Add(this.txtUpperCase);
       this.Controls.Add(this.lblUpperCaseOnly);
       this.Controls.Add(this.txtMultiline);
       this.Controls.Add(this.lblMultiline);
       this.Controls.Add(this.txtPassword);
       this.Controls.Add(this.lblPassword);
       this.Text = "Fun with Labels and TextBoxes";
       this.ResumeLayout(false);
       this.PerformLayout();
   }
   private System.Windows.Forms.Label lblPassword;
   private System.Windows.Forms.TextBox txtPassword;
   private System.Windows.Forms.Label lblMultiline;
   private System.Windows.Forms.TextBox txtMultiline;
   private System.Windows.Forms.Label lblUpperCaseOnly;
   private System.Windows.Forms.TextBox txtUpperCase;
   private System.Windows.Forms.Label lblMaskedTextBox;
   private System.Windows.Forms.MaskedTextBox txtMaskedTextBox;
   private System.Windows.Forms.Button btnDisplayData;
   [STAThread]
   static void Main() {
       Application.EnableVisualStyles();
       Application.Run(new MainWindow());
   }

}

 </source>


MaskedTextBox.KeyDown

<source lang="csharp">

using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class MainWindow : Form {

   public MainWindow() {
       InitializeComponent();
       CreateLabelControl();
   }
   private void btnDisplayData_Click(object sender, EventArgs e) {
       string textBoxData = "";
       textBoxData += string.Format("MultiLine:  {0}\n", txtMultiline.Text);
       textBoxData += string.Format("\nPassword:  {0}\n", txtPassword.Text);
       textBoxData += string.Format("\nUppercase:  {0}\n", txtUpperCase.Text);
       textBoxData += string.Format("\nMasked:  {0}\n", txtMaskedTextBox.Text);
       MessageBox.Show(textBoxData, "Here is the data in your TextBoxes");
   }
   private void CreateLabelControl() {
       Label lblInstructions = new Label();
       lblInstructions.Text = "Please enter values in all the text boxes";
       lblInstructions.Font = new Font("Times New Roman", 9.75F, FontStyle.Bold);
       lblInstructions.AutoSize = true;
       lblInstructions.Location = new System.Drawing.Point(16, 13);
       lblInstructions.Size = new System.Drawing.Size(240, 16);
       this.Controls.Add(lblInstructions);
   }
   private void txtMaskedTextBox_MaskInputRejected(object sender, MaskInputRejectedEventArgs e) {
       this.Text = string.Format("Error: {0}", e.RejectionHint);
   }
   private void txtMaskedTextBox_KeyDown(object sender, KeyEventArgs e) {
       this.Text = "Labels and TextBoxes";
   }
   private void InitializeComponent() {
       this.lblPassword = new System.Windows.Forms.Label();
       this.txtPassword = new System.Windows.Forms.TextBox();
       this.lblMultiline = new System.Windows.Forms.Label();
       this.txtMultiline = new System.Windows.Forms.TextBox();
       this.lblUpperCaseOnly = new System.Windows.Forms.Label();
       this.txtUpperCase = new System.Windows.Forms.TextBox();
       this.lblMaskedTextBox = new System.Windows.Forms.Label();
       this.txtMaskedTextBox = new System.Windows.Forms.MaskedTextBox();
       this.btnDisplayData = new System.Windows.Forms.Button();
       this.SuspendLayout();
       this.lblPassword.AutoSize = true;
       this.lblPassword.Location = new System.Drawing.Point(13, 43);
       this.lblPassword.Name = "lblPassword";
       this.lblPassword.Size = new System.Drawing.Size(94, 13);
       this.lblPassword.TabIndex = 0;
       this.lblPassword.Text = "&Password TextBox:";
       this.txtPassword.Location = new System.Drawing.Point(125, 43);
       this.txtPassword.Name = "txtPassword";
       this.txtPassword.PasswordChar = "*";
       this.txtPassword.Size = new System.Drawing.Size(220, 20);
       this.txtPassword.TabIndex = 1;
       this.lblMultiline.AutoSize = true;
       this.lblMultiline.Location = new System.Drawing.Point(14, 80);
       this.lblMultiline.Name = "lblMultiline";
       this.lblMultiline.Size = new System.Drawing.Size(86, 13);
       this.lblMultiline.TabIndex = 2;
       this.lblMultiline.Text = "&Multiline TextBox:";
       this.txtMultiline.Location = new System.Drawing.Point(125, 80);
       this.txtMultiline.Multiline = true;
       this.txtMultiline.Name = "txtMultiline";
       this.txtMultiline.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
       this.txtMultiline.Size = new System.Drawing.Size(220, 52);
       this.txtMultiline.TabIndex = 3;
       this.lblUpperCaseOnly.AutoSize = true;
       this.lblUpperCaseOnly.Location = new System.Drawing.Point(15, 157);
       this.lblUpperCaseOnly.Name = "lblUpperCaseOnly";
       this.lblUpperCaseOnly.Size = new System.Drawing.Size(82, 13);
       this.lblUpperCaseOnly.TabIndex = 4;
       this.lblUpperCaseOnly.Text = "&Uppercase Only:";
       this.txtUpperCase.CharacterCasing = System.Windows.Forms.CharacterCasing.Upper;
       this.txtUpperCase.Location = new System.Drawing.Point(125, 157);
       this.txtUpperCase.Name = "txtUpperCase";
       this.txtUpperCase.Size = new System.Drawing.Size(220, 20);
       this.txtUpperCase.TabIndex = 5;
       // 
       this.lblMaskedTextBox.AutoSize = true;
       this.lblMaskedTextBox.Location = new System.Drawing.Point(15, 199);
       this.lblMaskedTextBox.Name = "lblMaskedTextBox";
       this.lblMaskedTextBox.Size = new System.Drawing.Size(83, 13);
       this.lblMaskedTextBox.TabIndex = 7;
       this.lblMaskedTextBox.Text = "Mas&ked TextBox";
       // 
       this.txtMaskedTextBox.BeepOnError = true;
       this.txtMaskedTextBox.CausesValidation = false;
       this.txtMaskedTextBox.Location = new System.Drawing.Point(125, 199);
       this.txtMaskedTextBox.Mask = "(999) 000-0000";
       this.txtMaskedTextBox.Name = "txtMaskedTextBox";
       this.txtMaskedTextBox.Size = new System.Drawing.Size(220, 20);
       this.txtMaskedTextBox.TabIndex = 8;
       this.txtMaskedTextBox.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtMaskedTextBox_KeyDown);
       this.txtMaskedTextBox.MaskInputRejected += new System.Windows.Forms.MaskInputRejectedEventHandler(this.txtMaskedTextBox_MaskInputRejected);
       // 
       this.btnDisplayData.Location = new System.Drawing.Point(257, 236);
       this.btnDisplayData.Name = "btnDisplayData";
       this.btnDisplayData.Size = new System.Drawing.Size(88, 23);
       this.btnDisplayData.TabIndex = 6;
       this.btnDisplayData.Text = "Display Data";
       this.btnDisplayData.Click += new System.EventHandler(this.btnDisplayData_Click);
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(357, 276);
       this.Controls.Add(this.txtMaskedTextBox);
       this.Controls.Add(this.lblMaskedTextBox);
       this.Controls.Add(this.btnDisplayData);
       this.Controls.Add(this.txtUpperCase);
       this.Controls.Add(this.lblUpperCaseOnly);
       this.Controls.Add(this.txtMultiline);
       this.Controls.Add(this.lblMultiline);
       this.Controls.Add(this.txtPassword);
       this.Controls.Add(this.lblPassword);
       this.Text = "Fun with Labels and TextBoxes";
       this.ResumeLayout(false);
       this.PerformLayout();
   }
   private System.Windows.Forms.Label lblPassword;
   private System.Windows.Forms.TextBox txtPassword;
   private System.Windows.Forms.Label lblMultiline;
   private System.Windows.Forms.TextBox txtMultiline;
   private System.Windows.Forms.Label lblUpperCaseOnly;
   private System.Windows.Forms.TextBox txtUpperCase;
   private System.Windows.Forms.Label lblMaskedTextBox;
   private System.Windows.Forms.MaskedTextBox txtMaskedTextBox;
   private System.Windows.Forms.Button btnDisplayData;
   [STAThread]
   static void Main() {
       Application.EnableVisualStyles();
       Application.Run(new MainWindow());
   }

}

 </source>


MaskedTextBox.MaskInputRejected

<source lang="csharp">

using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class MainWindow : Form {

   public MainWindow() {
       InitializeComponent();
       CreateLabelControl();
   }
   private void btnDisplayData_Click(object sender, EventArgs e) {
       string textBoxData = "";
       textBoxData += string.Format("MultiLine:  {0}\n", txtMultiline.Text);
       textBoxData += string.Format("\nPassword:  {0}\n", txtPassword.Text);
       textBoxData += string.Format("\nUppercase:  {0}\n", txtUpperCase.Text);
       textBoxData += string.Format("\nMasked:  {0}\n", txtMaskedTextBox.Text);
       MessageBox.Show(textBoxData, "Here is the data in your TextBoxes");
   }
   private void CreateLabelControl() {
       Label lblInstructions = new Label();
       lblInstructions.Text = "Please enter values in all the text boxes";
       lblInstructions.Font = new Font("Times New Roman", 9.75F, FontStyle.Bold);
       lblInstructions.AutoSize = true;
       lblInstructions.Location = new System.Drawing.Point(16, 13);
       lblInstructions.Size = new System.Drawing.Size(240, 16);
       this.Controls.Add(lblInstructions);
   }
   private void txtMaskedTextBox_MaskInputRejected(object sender, MaskInputRejectedEventArgs e) {
       this.Text = string.Format("Error: {0}", e.RejectionHint);
   }
   private void txtMaskedTextBox_KeyDown(object sender, KeyEventArgs e) {
       this.Text = "Labels and TextBoxes";
   }
   private void InitializeComponent() {
       this.lblPassword = new System.Windows.Forms.Label();
       this.txtPassword = new System.Windows.Forms.TextBox();
       this.lblMultiline = new System.Windows.Forms.Label();
       this.txtMultiline = new System.Windows.Forms.TextBox();
       this.lblUpperCaseOnly = new System.Windows.Forms.Label();
       this.txtUpperCase = new System.Windows.Forms.TextBox();
       this.lblMaskedTextBox = new System.Windows.Forms.Label();
       this.txtMaskedTextBox = new System.Windows.Forms.MaskedTextBox();
       this.btnDisplayData = new System.Windows.Forms.Button();
       this.SuspendLayout();
       this.lblPassword.AutoSize = true;
       this.lblPassword.Location = new System.Drawing.Point(13, 43);
       this.lblPassword.Name = "lblPassword";
       this.lblPassword.Size = new System.Drawing.Size(94, 13);
       this.lblPassword.TabIndex = 0;
       this.lblPassword.Text = "&Password TextBox:";
       this.txtPassword.Location = new System.Drawing.Point(125, 43);
       this.txtPassword.Name = "txtPassword";
       this.txtPassword.PasswordChar = "*";
       this.txtPassword.Size = new System.Drawing.Size(220, 20);
       this.txtPassword.TabIndex = 1;
       this.lblMultiline.AutoSize = true;
       this.lblMultiline.Location = new System.Drawing.Point(14, 80);
       this.lblMultiline.Name = "lblMultiline";
       this.lblMultiline.Size = new System.Drawing.Size(86, 13);
       this.lblMultiline.TabIndex = 2;
       this.lblMultiline.Text = "&Multiline TextBox:";
       this.txtMultiline.Location = new System.Drawing.Point(125, 80);
       this.txtMultiline.Multiline = true;
       this.txtMultiline.Name = "txtMultiline";
       this.txtMultiline.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
       this.txtMultiline.Size = new System.Drawing.Size(220, 52);
       this.txtMultiline.TabIndex = 3;
       this.lblUpperCaseOnly.AutoSize = true;
       this.lblUpperCaseOnly.Location = new System.Drawing.Point(15, 157);
       this.lblUpperCaseOnly.Name = "lblUpperCaseOnly";
       this.lblUpperCaseOnly.Size = new System.Drawing.Size(82, 13);
       this.lblUpperCaseOnly.TabIndex = 4;
       this.lblUpperCaseOnly.Text = "&Uppercase Only:";
       this.txtUpperCase.CharacterCasing = System.Windows.Forms.CharacterCasing.Upper;
       this.txtUpperCase.Location = new System.Drawing.Point(125, 157);
       this.txtUpperCase.Name = "txtUpperCase";
       this.txtUpperCase.Size = new System.Drawing.Size(220, 20);
       this.txtUpperCase.TabIndex = 5;
       // 
       this.lblMaskedTextBox.AutoSize = true;
       this.lblMaskedTextBox.Location = new System.Drawing.Point(15, 199);
       this.lblMaskedTextBox.Name = "lblMaskedTextBox";
       this.lblMaskedTextBox.Size = new System.Drawing.Size(83, 13);
       this.lblMaskedTextBox.TabIndex = 7;
       this.lblMaskedTextBox.Text = "Mas&ked TextBox";
       // 
       this.txtMaskedTextBox.BeepOnError = true;
       this.txtMaskedTextBox.CausesValidation = false;
       this.txtMaskedTextBox.Location = new System.Drawing.Point(125, 199);
       this.txtMaskedTextBox.Mask = "(999) 000-0000";
       this.txtMaskedTextBox.Name = "txtMaskedTextBox";
       this.txtMaskedTextBox.Size = new System.Drawing.Size(220, 20);
       this.txtMaskedTextBox.TabIndex = 8;
       this.txtMaskedTextBox.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtMaskedTextBox_KeyDown);
       this.txtMaskedTextBox.MaskInputRejected += new System.Windows.Forms.MaskInputRejectedEventHandler(this.txtMaskedTextBox_MaskInputRejected);
       // 
       this.btnDisplayData.Location = new System.Drawing.Point(257, 236);
       this.btnDisplayData.Name = "btnDisplayData";
       this.btnDisplayData.Size = new System.Drawing.Size(88, 23);
       this.btnDisplayData.TabIndex = 6;
       this.btnDisplayData.Text = "Display Data";
       this.btnDisplayData.Click += new System.EventHandler(this.btnDisplayData_Click);
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(357, 276);
       this.Controls.Add(this.txtMaskedTextBox);
       this.Controls.Add(this.lblMaskedTextBox);
       this.Controls.Add(this.btnDisplayData);
       this.Controls.Add(this.txtUpperCase);
       this.Controls.Add(this.lblUpperCaseOnly);
       this.Controls.Add(this.txtMultiline);
       this.Controls.Add(this.lblMultiline);
       this.Controls.Add(this.txtPassword);
       this.Controls.Add(this.lblPassword);
       this.Text = "Fun with Labels and TextBoxes";
       this.ResumeLayout(false);
       this.PerformLayout();
   }
   private System.Windows.Forms.Label lblPassword;
   private System.Windows.Forms.TextBox txtPassword;
   private System.Windows.Forms.Label lblMultiline;
   private System.Windows.Forms.TextBox txtMultiline;
   private System.Windows.Forms.Label lblUpperCaseOnly;
   private System.Windows.Forms.TextBox txtUpperCase;
   private System.Windows.Forms.Label lblMaskedTextBox;
   private System.Windows.Forms.MaskedTextBox txtMaskedTextBox;
   private System.Windows.Forms.Button btnDisplayData;
   [STAThread]
   static void Main() {
       Application.EnableVisualStyles();
       Application.Run(new MainWindow());
   }

}

 </source>