摘要：
using System;using System.Collections;using System.Collections.Generic;using System.Data;using System.Text;using System.Data.SqlClient;using System.Da... 阅读全文
摘要：
private bool IsExistsItem(string text) { foreach(ListViewItem item in listView1.Items) { if(item.Text==text) return true; } ... 阅读全文