本文实例为大家分享了C#实现QQ聊天窗口的具体代码，供大家参考，具体内容如下
分析需要两个TextBox,一个用于显示消息,一个用于编辑消息
需要四个按钮,分别控制关闭程序,清空正在编辑的消息,发送消息,抖动
原理1、在TextBox2中编辑消息并发送,在TextBox1中显示所发送的消息的同时使TextBox2中的消息清空
2、发送的第一条消息TextBox1先保存并显示,发送第二条消息时将TextBox1事先的消息先打印出来接着显示第二条消息
3、抖动原理:使窗口的left以及top发生变化(围绕窗体左上角为坐标原点考虑)加上Thread线程和for循环从而实现窗口抖动效果
程序中用到的重要属性
ReadOnly属性:设置文本为只读(true)textBox1.ReadOnly=true;
TabIndex属性:设置光标默认出现在哪里(0)textBox1.TabIndex=0;
Multiline属性:设置文本框可多行输入textBox1.Multiline=true;
Datetime:获取当前时间
“\r\n” 换行
AcceptButton属性:获取或设置当用户按Enter键时所单击的窗体上的按钮this.AcceptButton = button2;
Thread类:创建和控制线程Thread.Sleep(10);//设置执行完上一步停留时间还需要创建命名空间using System.Threading;
Trim方法:textBox2.Text.Trim()=="")//Trim:移除当前textBox2对象位置前后的空白字符
具体代码如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Threading;//设置多线程
namespace Test_QQ_chat_windows
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
//设置聊天窗口居中
this.Left = Screen.PrimaryScreen.WorkingArea.Width / 2 - this.Width / 2;
this.Top = Screen.PrimaryScreen.WorkingArea.Height / 2 - this.Height / 2;
//聊天窗口命名
this.Text = "和Know正在聊天";
this.BackgroundImage = Image.FromFile("../../img/timg.jpg");//设置窗体背景图
this.BackgroundImageLayout = ImageLayout.Stretch;//设置窗体背景图拉伸
//textBox1设置只读
textBox1.ReadOnly = true;
//设置发送按钮可以用Enter键来触发
this.AcceptButton = button2;
this.Opacity = 0.8;//设置窗体透明度为0.2
textBox1.BackColor = Color.DeepSkyBlue;
textBox2.BackColor = Color.DeepPink;
}
private void button1_Click(object sender, EventArgs e)
{
this.BackColor = Color.DeepSkyBlue;//设置窗体背景颜色
textBox1.Text += "深夜食堂(36522224)" + DateTime.Now + "\r\n"+ "\r\n" + "您发送了一个窗口抖动" + "\r\n"+"\r\n";
textBox2.Text = "";//设置发送内容后textBox2中无内容
//窗口抖动
int x = this.Left;
int y = this.Top;
for (int i = 0; i <= 3; i++)//设置抖动次数
{
this.Location = new Point(x - 3, y);
Thread.Sleep(10);//设置执行完上一步停留时间
this.Location = new Point(x - 3, y - 3);
Thread.Sleep(10);
this.Location = new Point(x, y - 3);
Thread.Sleep(10);
this.Location = new Point(x + 3, y - 3);
Thread.Sleep(10);
this.Location = new Point(x + 3, y);
Thread.Sleep(10);
this.Location = new Point(x + 3, y + 3);
Thread.Sleep(10);
this.Location = new Point(x, y + 3);
Thread.Sleep(10);
this.Location = new Point(x - 3, y + 3);
Thread.Sleep(10);
this.Location = new Point(x - 3, y);
Thread.Sleep(10);
this.Location = new Point(x, y);
}
}
private void button2_Click(object sender, EventArgs e)
{
//消息发送
//判断textbox2中有无内容
if (textBox2.Text == ""||textBox2.Text.Trim()=="")//Trim:移除当前textBox2对象位置前后的空白字符)
{
MessageBox.Show("输入不能为空值,请重新输入", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
textBox1.Text += "深夜食堂(36522224)" + DateTime.Now + "\r\n" + "\r\n" + textBox2.Text + "\r\n"+ "\r\n";
textBox2.Text = "";//设置发送内容后textBox2中无内容
}
}
private void button3_Click(object sender, EventArgs e)
{
this.Close();
}
private void button4_Click(object sender, EventArgs e)
{
textBox2.Text = "";
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
//设置起始点在最后消息处
this.textBox1.SelectionStart = this.textBox1.Text.Length;
//内容滚动到最后消息处
this.textBox1.ScrollToCaret();
}
}
}