本文实例讲述了C#异步绑定数据实现方法。分享给大家供大家参考。具体如下：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | using System;using System.Collections.Generic;using System.Text;using System.Data.SqlClient;using System.Data;using System.Windows.Forms;namespace WindowsApplication2{ public class AsyncCallBackOpeartion { private static DataGridView dataGridView; public static void AsyncCallBack(string connectionString, string sql, DataGridView dgv) { dataGridView = dgv; connectionString += ";Asynchronous Processing=true"; SqlConnection conn = new SqlConnection(connectionString); SqlCommand command = new SqlCommand(sql, conn); conn.Open(); command.BeginExecuteReader(new AsyncCallback(AsyncCallBack), command); } static void AsyncCallBack(IAsyncResult ar) { if (ar.IsCompleted) { SqlCommand com = (SqlCommand)ar.AsyncState; SqlDataReader dr = com.EndExecuteReader(ar); DataTable dt = new DataTable(); dt.Load(dr); dr.Close(); if (dataGridView.InvokeRequired) { updateDG ur = new updateDG(dataBin); dataGridView.Invoke(ur, dt); } } } delegate void updateDG(DataTable dt); public static void dataBin(DataTable dt) { dataGridView.DataSource = dt; } }} |
希望本文所述对大家的C#程序设计有所帮助。
