C# TextBox.Multiline属性代码示例

public void CreateMyMultilineTextBox()
 {
    // Create an instance of a TextBox control.
    TextBox textBox1 = new TextBox();
       
    // Set the Multiline property to true.
    textBox1.Multiline = true;
    // Add vertical scroll bars to the TextBox control.
    textBox1.ScrollBars = ScrollBars.Vertical;
    // Allow the RETURN key to be entered in the TextBox control.
    textBox1.AcceptsReturn = true;
    // Allow the TAB key to be entered in the TextBox control.
    textBox1.AcceptsTab = true;
    // Set WordWrap to true to allow text to wrap to the next line.
    textBox1.WordWrap = true;
    // Set the default text of the control.
    textBox1.Text = "Welcome!";
 }

//引入命名空间
using System;
    using System.Drawing;
    using System.Collections;
    using System.ComponentModel;
    using System.Windows.Forms;
    using System.Data;

  public class TextForm : System.Windows.Forms.Form
    {
    private System.Windows.Forms.Button btnPasswordDecoderRing;
    private System.Windows.Forms.Label label3;
    private System.Windows.Forms.TextBox passwordBox;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.TextBox capsOnlyBox;
    private System.Windows.Forms.Button btnGetMultiLineText;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.TextBox multiLineBox;

        public TextForm()
        {
            InitializeComponent();
        }

    private void InitializeComponent()
    {
      this.capsOnlyBox = new System.Windows.Forms.TextBox();
      this.multiLineBox = new System.Windows.Forms.TextBox();
      this.label1 = new System.Windows.Forms.Label();
      this.label2 = new System.Windows.Forms.Label();
      this.passwordBox = new System.Windows.Forms.TextBox();
      this.btnGetMultiLineText = new System.Windows.Forms.Button();
      this.btnPasswordDecoderRing = new System.Windows.Forms.Button();
      this.label3 = new System.Windows.Forms.Label();
      this.capsOnlyBox.CharacterCasing = System.Windows.Forms.CharacterCasing.Upper;
      this.capsOnlyBox.Location = new System.Drawing.Point(14, 176);
      this.capsOnlyBox.Size = new System.Drawing.Size(120, 20);
      this.capsOnlyBox.TabIndex = 3;
      this.multiLineBox.AcceptsReturn = true;
      this.multiLineBox.AcceptsTab = true;
      this.multiLineBox.Location = new System.Drawing.Point(152, 8);
      this.multiLineBox.Multiline = true;
      this.multiLineBox.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
      this.multiLineBox.Size = new System.Drawing.Size(240, 104);
      this.multiLineBox.TabIndex = 0;
      this.multiLineBox.Text = "Get text from multiline textbox";
      this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 10F);
      this.label1.Location = new System.Drawing.Point(8, 8);
      this.label1.Size = new System.Drawing.Size(136, 56);
      this.label1.TabIndex = 1;
      this.label1.Text = "this is a multiline text box";
      this.label2.Font = new System.Drawing.Font("Comic Sans MS", 12F);
      this.label2.Location = new System.Drawing.Point(14, 144);
      this.label2.Size = new System.Drawing.Size(106, 24);
      this.label2.TabIndex = 4;
      this.label2.Text = "Caps only!!";
      this.passwordBox.Location = new System.Drawing.Point(160, 176);
      this.passwordBox.PasswordChar = '$';
      this.passwordBox.Size = new System.Drawing.Size(232, 20);
      this.passwordBox.TabIndex = 5;
      this.passwordBox.Text = "password";
      this.btnGetMultiLineText.Location = new System.Drawing.Point(13, 72);
      this.btnGetMultiLineText.Size = new System.Drawing.Size(120, 32);
      this.btnGetMultiLineText.TabIndex = 2;
      this.btnGetMultiLineText.Text = "Get Text";
      this.btnGetMultiLineText.Click += new System.EventHandler(this.btnGetMultiLineText_Click);
      this.btnPasswordDecoderRing.Location = new System.Drawing.Point(280, 144);
      this.btnPasswordDecoderRing.Size = new System.Drawing.Size(112, 24);
      this.btnPasswordDecoderRing.TabIndex = 7;
      this.btnPasswordDecoderRing.Text = "Decode Password";
      this.btnPasswordDecoderRing.Click += new System.EventHandler(this.btnPasswordDecoderRing_Click);
      this.label3.Font = new System.Drawing.Font("Comic Sans MS", 12F);
      this.label3.Location = new System.Drawing.Point(152, 144);
      this.label3.Size = new System.Drawing.Size(120, 24);
      this.label3.TabIndex = 6;
      this.label3.Text = "Password Box";
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(408, 221);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {this.btnPasswordDecoderRing,
                                      this.label3,
                                      this.passwordBox,
                                      this.label2,
                                      this.capsOnlyBox,
                                      this.btnGetMultiLineText,
                                      this.label1,
                                      this.multiLineBox});
      this.Text = "TextBox Types";

    }

    protected void btnPasswordDecoderRing_Click (object sender, System.EventArgs e)
    {
      MessageBox.Show(passwordBox.Text, "Your password is:");
    }

    protected void btnGetMultiLineText_Click (object sender, System.EventArgs e)
    {
      MessageBox.Show(multiLineBox.Text, "Here is your text");
    }

        public static void Main(string[] args) 
        {
            Application.Run(new TextForm());
        }
    }