我要评论本文实例讲述了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：
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。
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