TextBox.Validating : TextBox « System.Windows.Forms « C# / C Sharp by API

1. C# / C Sharp by API
2. System.Windows.Forms
3. TextBox

TextBox.Validating

  

using System;
using System.Windows.Forms;

class GetValueFromTextBox : Form
{
    private Label label1;
    private TextBox textBox1;
    private Button button1;

    public GetValueFromTextBox() 
    {
        this.label1 = new Label();
        this.textBox1 = new TextBox();
        this.button1 = new Button();

        this.SuspendLayout();

        this.label1.Location = new System.Drawing.Point(16, 36);
        this.label1.Name = "label1";
        this.label1.Size = new System.Drawing.Size(128, 16);
        this.label1.TabIndex = 0;
        this.label1.Text = "Please enter your name:";

        this.textBox1.Location = new System.Drawing.Point(152, 32);
        this.textBox1.Name = "textBox1";
        this.textBox1.TabIndex = 1;
        this.textBox1.Text = "";

        this.button1.Location = new System.Drawing.Point(109, 80);
        this.button1.Name = "button1";
        this.button1.TabIndex = 2;
        this.button1.Text = "Enter";
        this.button1.Click += new System.EventHandler(this.button1_Click);

        this.ClientSize = new System.Drawing.Size(292, 126);
        this.Controls.Add(this.button1);
        this.Controls.Add(this.textBox1);
        this.Controls.Add(this.label1);
        this.Name = "form1";
        this.Text = "";

        this.ResumeLayout(false);    
    }

    private void button1_Click(object sender, System.EventArgs e)
    {
        Console.WriteLine(textBox1.Text);

        MessageBox.Show(textBox1.Text);
    }

    [STAThread]
    public static void Main() 
    {
        Application.EnableVisualStyles();
        Application.Run(new GetValueFromTextBox());
    }
}

   
    
  

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