传递参数的BackgroundWorker [英] Passing Parameter to Backgroundworker

问题描述

进出口运行背景工人一个C＃代码。林通过具有foreach循环和传递的foreach变量作为参数BackgroundWorker的循环IM里面impelmenting它。但问题是，每当我运行的代码只有一个随机值，最有可能在GridView的最后一行作为参数传递。该代码是这里

 的foreach（在dataGridView3.Rows的DataGridViewRow行）
 {
 BackgroundWorker的工人=新的BackgroundWorker（）; 
 worker.WorkerSupportsCancellation = TRUE; 
 worker.DoWork + =代表
 {
数据= dataGridView3.Rows [row.Index] .Cells [0] .Value.ToString（）; 
的rowIndex = row.Index; 
 DATA1 = ROS [0] .Cells [0] .Value.ToString（）; 
}; 
 
 worker.RunWorkerAync（）; 
} 
  

解决方案

通过发送参数作为尝试行

  worker.DoWork + =委托（对象S，DoWorkEventArgs参数） 
 {
的DataGridViewRow DGR =（的DataGridViewRow）args.Argument; 
数据= dataGridView3.Rows [dgr.Index] .Cells [0] .Value.ToString（）; 
的rowIndex = dgr.Index; 
 DATA1 = DGR [0] .Cells [0] .Value.ToString（）; 
}; 
 
 worker.RunWorkerAsync（行）; 
  

Im running a c# code with background worker. Im impelmenting it by having a foreach loop and inside the loop im passing the foreach variable as parameter for the Backgroundworker. But the problem is that whenever i run the code only single random value, most probably the last row in the gridview is passed as parameter. The code is as here

foreach (DataGridViewRow row in dataGridView3.Rows)
{
    BackgroundWorker worker = new BackgroundWorker();
    worker.WorkerSupportsCancellation = true;
    worker.DoWork += delegate
    {
        data = dataGridView3.Rows[row.Index].Cells[0].Value.ToString();
        rowindex = row.Index;
        data1 = ros[0].Cells[0].Value.ToString();
    };

    worker.RunWorkerAync();
}

解决方案

try by sending parameter as row

worker.DoWork += delegate(object s, DoWorkEventArgs args)
{
    DataGridViewRow  dgr = (DataGridViewRow)args.Argument;
    data = dataGridView3.Rows[dgr.Index].Cells[0].Value.ToString();
    rowindex = dgr.Index;
    data1 = dgr[0].Cells[0].Value.ToString();
};

worker.RunWorkerAsync(row);

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