private void DoWork(object sender, DoWorkEventArgs e)
{
int sum = 0;
for (int k = 0; k < 1000; k++)
{
if (BgWorker.CancellationPending) //指示应用程序是否已请求取消后台操作
{
e.Cancel = true;
return;
}
for (int i = Range.nStart; i < Range.nEnd; i++)
{
sum += i;
}
//在拥有控件的基础窗口句柄的线程上，用指定的自变量列表执行指定委托
Frm.Invoke(SendMessage, Range.id, sum.ToString() + '\t' + k.ToString());
}
WorkResult result = new WorkResult {
id = Range.id,
result = sum
};
e.Result = result;
}
private void DoComplete(bool cancel, WorkResult result)
{
if (cancel)
{
return;
}
lstResult.Items.Add(result.id.ToString() + '\t' + result.result.ToString());
}
private void DoComplete(bool cancel, WorkResult result)
{
if (cancel)
{
return;
}
if (id == 1)
{
lstRange.Items.Add(result.result.ToString());
}
else if (id == 0)
{
lstResult.Items.Add(result.result.ToString());
}
}
private void RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (e.Cancelled)
{
txtResult1.Text = "canceled";
}
else
{
WorkResult result = (WorkResult)e.Result;
if (result.id == 1)
{
txtResult1.Text = result.result.ToString();
}
else if (result.id == 2)
{
txtResult2.Text = result.result.ToString();
}
}
}
private void DoWork(object sender, DoWorkEventArgs e)
{
int sum = 0;
for (int k = 0; k < 1000; k++)
{
if (BgWorker.CancellationPending) //指示应用程序是否已请求取消后台操作
{
e.Cancel = true;
return;
}
for (int i = Range.nStart; i < Range.nEnd; i++)
{
sum += i;
}
}
WorkResult result = new WorkResult {
id = Range.id,
result = sum
};
e.Result = result;
}
private void DoWork(object sender, DoWorkEventArgs e)
{
WorkRange wr = (WorkRange)e.Argument;
int sum = 0;
for (int k = 0; k < 1000; k++)
{
if (bgWork.CancellationPending) //指示应用程序是否已请求取消后台操作
{
e.Cancel = true;
return;
}
for (int i = wr.nStart; i < wr.nEnd; i++)
{
sum += i;
}
}
WorkResult result = new WorkResult();
result.id = wr.id;
result.result = sum;
e.Result = result;
}
private void RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
WorkResult result = (WorkResult)e.Result;
Complete(e.Cancelled, result);
}
