C# WinForm RichTextBox文本动态滚动显示文本方式

WinForm RichTextBox文本动态滚动显示文本方

在RichTextBox动态显示一些文本信息时，需要一些设置，显示当前要显示的字符串。

一个RichTextBox，一个按钮。

下图为运行时显示过程中

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace RichTextBoxScroll
{
  public partial class Form1 : Form
  {
      private delegate void delInfoList(string text);
      public Form1()
      {
          InitializeComponent();
      }
      
      private void SetrichTextBox(string value)
      {

          if (richTextBox1.InvokeRequired)//其它线程调用
          {
              delInfoList d = new delInfoList(SetrichTextBox);
              richTextBox1.Invoke(d, value);
          }
          else//本线程调用
          {
              if (richTextBox1.Lines.Length > 100)
              { 
                  richTextBox1.Clear();
              }

              richTextBox1.Focus(); //让文本框获取焦点 
              richTextBox1.Select(richTextBox1.TextLength, 0);//设置光标的位置到文本尾
              richTextBox1.ScrollToCaret();//滚动到控件光标处 
              richTextBox1.AppendText(value);//添加内容
          }
      }

      private void button1_Click(object sender, EventArgs e)
      {
          for (int i = 0; i < 300; i++)
          {
              SetrichTextBox(DateTime.Now.ToString() + " 内容滚动打印中!!!\n");
          } 
      }
  }
}

Form1.Designer.cs

namespace RichTextBoxScroll
{
  partial class Form1
  {
      /// <summary>
      /// Required designer variable.
      /// </summary>
      private System.ComponentModel.IContainer components = null;


      /// <summary>
      /// Clean up any resources being used.
      /// </summary>
      /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
      protected override void Dispose(bool disposing)
      {
          if (disposing && (components != null))
          {
              components.Dispose();
          }
          base.Dispose(disposing);
      }


      #region Windows Form Designer generated code


      /// <summary>
      /// Required method for Designer support - do not modify
      /// the contents of this method with the code editor.
      /// </summary>
      private void InitializeComponent()
      {
          this.panel1 = new System.Windows.Forms.Panel();
          this.button1 = new System.Windows.Forms.Button();
          this.richTextBox1 = new System.Windows.Forms.RichTextBox();
          this.panel1.SuspendLayout();
          this.SuspendLayout();
          // 
          // panel1
          // 
          this.panel1.Controls.Add(this.button1);
          this.panel1.Controls.Add(this.richTextBox1);
          this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
          this.panel1.Location = new System.Drawing.Point(0, 0);
          this.panel1.Name = "panel1";
          this.panel1.Size = new System.Drawing.Size(706, 496);
          this.panel1.TabIndex = 0;
          // 
          // button1
          // 
          this.button1.Location = new System.Drawing.Point(609, 85);
          this.button1.Name = "button1";
          this.button1.Size = new System.Drawing.Size(75, 23);
          this.button1.TabIndex = 1;
          this.button1.Text = "开始测试";
          this.button1.UseVisualStyleBackColor = true;
          this.button1.Click += new System.EventHandler(this.button1_Click);
          // 
          // richTextBox1
          // 
          this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Fill;
          this.richTextBox1.Font = new System.Drawing.Font("SimSun", 21.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
          this.richTextBox1.Location = new System.Drawing.Point(0, 0);
          this.richTextBox1.Name = "richTextBox1";
          this.richTextBox1.Size = new System.Drawing.Size(706, 496);
          this.richTextBox1.TabIndex = 0;
          this.richTextBox1.Text = "";
          // 
          // Form1
          // 
          this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
          this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
          this.ClientSize = new System.Drawing.Size(706, 496);
          this.Controls.Add(this.panel1);
          this.Name = "Form1";
          this.Text = "滚动打印测试";
          this.panel1.ResumeLayout(false);
          this.ResumeLayout(false);


      }


      #endregion


      private System.Windows.Forms.Panel panel1;
      private System.Windows.Forms.RichTextBox richTextBox1;
      private System.Windows.Forms.Button button1;
  }
}

总结

以上为个人经验，希望能给大家一个参考，也希望大家多多支持编程宝库。

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