1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Linq; 7 using System.Text; 8 using System.Threading.Tasks; 9 using System.Windows.Forms; 10 11 namespace _04TextBox 12 { 13 public partial class Form1 : Form 14 { 15 List<string> Data = new List<string>(); 16 17 string Randomstr = "功夫撒黑胡椒hcbvf蜂窝qwertyuiopasdfghjklzxcvbnm法国的恢复到飞范德萨QWERTYUIOPASDFGHJKLZXCVBNM出现过热423贴①46546也有一头热刚恢复到贴3天赋如头3广泛的我让他"; 18 19 20 Random rd = new Random(GetRandomSeed()); 21 22 static int GetRandomSeed() 23 { 24 byte[] bytes = new byte[4]; 25 System.Security.Cryptography.RNGCryptoServiceProvider rng = new System.Security.Cryptography.RNGCryptoServiceProvider(); 26 rng.GetBytes(bytes); 27 return BitConverter.ToInt32(bytes, 0); 28 } 29 30 public Form1() 31 { 32 InitializeComponent(); 33 34 //2000W数据,这里会有卡顿现象,这里修改为200W 35 for (int i = 0; i < 2000000; i++) 36 { 37 Data.Add(Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString() 38 + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString() 39 + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString() 40 + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString() 41 + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString()); 42 } 43 //重点代码 44 this.textBox1.AutoCompleteCustomSource.Clear(); 45 this.textBox1.AutoCompleteCustomSource.AddRange(Data.ToArray()); 46 this.textBox1.AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend; 47 this.textBox1.AutoCompleteSource = System.Windows.Forms.AutoCompleteSource.CustomSource; 48 } 49 50 private void Form1_Load(object sender, EventArgs e) 51 { 52 53 } 54 55 } 56 }
Form1 TextBox Source Code
最终实现效果如下:
时间: 2024-10-10 15:31:13