69 lines
2.0 KiB
C#
69 lines
2.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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namespace SuperSQLInjection
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{
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public partial class FindString : Form
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{
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public FindString()
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{
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InitializeComponent();
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}
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public int searchPoint = 0;
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public TextBox txtbox = null;
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private void button1_Click(object sender, EventArgs e)
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{
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//查找下一个
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if (txtbox.Text == "")
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{
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//没内容
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MessageBox.Show("查找内容为空，请输入查找内容", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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else
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{
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//有查找内容时
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searchPoint = txtbox.Text.IndexOf(this.find_txt.Text, searchPoint);//用IndexOf索引
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if (searchPoint <0)
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{
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//没找到
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MessageBox.Show("已到文本末尾，没有找到", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
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searchPoint = 0;
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}
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else
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{
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//找到了，选中文本
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txtbox.Select(searchPoint, this.find_txt.Text.Length);
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searchPoint = searchPoint + this.find_txt.Text.Length;
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txtbox.Focus();
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}
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}
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}
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private void find_txt_TextChanged(object sender, EventArgs e)
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{
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int count = 0; //计数器
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string search = this.find_txt.Text; //要查的字符串
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if("".Equals(search)){
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return;
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}
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for (int i = 0; i <= txtbox.Text.Length - search.Length; i++)
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{
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if (txtbox.Text.Substring(i, search.Length).ToLower() == search.ToLower())
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{
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count++;
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}
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}
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this.lbl_count.Text = count.ToString();
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}
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}
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}
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