我要评论 public partial class form1 : form
{
cancellationtokensource cts = new cancellationtokensource();
public form1()
{
initializecomponent();
}
private void startclick(object sender, eventargs e)
{
task testtask = task.run(() =>
{
while (!cts.iscancellationrequested)
{
string str = $"{datetime.now.tostring("yyyymmddhhmmssffff")},{guid.newguid().tostring()}";
begininvoke(new action(() =>
{
listbox1.items.add(str);
}));
thread.sleep(500);
}
}, cts.token);
}
private void cancelclick(object sender, eventargs e)
{
cts.cancel();
string str = "task cancelled";
listbox1.items.add(str);
}
}
public partial class form1 : form
{
cancellationtokensource cts = new cancellationtokensource();
list<string> lblist = new list<string>();
public form1()
{
initializecomponent();
listbox1.datasource = lblist;
}
private void startclick(object sender, eventargs e)
{
task testtask = task.run(() =>
{
while (!cts.iscancellationrequested)
{
string str = $"{datetime.now.tostring("yyyymmddhhmmssffff")},{guid.newguid().tostring()}";
begininvoke(new action(() =>
{
lblist.add(str);
listbox1.datasource = null;
listbox1.datasource = lblist;
}));
thread.sleep(500);
}
}, cts.token);
}
private void cancelclick(object sender, eventargs e)
{
cts.cancel();
string str = "task cancelled";
begininvoke(new action(() =>
{
lblist.add(str);
listbox1.datasource = null;
listbox1.datasource = lblist;
}));
}
}
public partial class form1 : form
{
cancellationtokensource cts = new cancellationtokensource();
list<string> lblist = new list<string>();
public form1()
{
initializecomponent();
listbox1.datasource = lblist;
}
private void startclick(object sender, eventargs e)
{
task testtask = task.run(() =>
{
while (!cts.iscancellationrequested)
{
addcontenttolbx();
}
}, cts.token);
}
int i = 0;
private void addcontenttolbx()
{
for(i=0;i<10000;i++)
{
string str = $"i={i},{datetime.now.tostring("yyyymmddhhmmssffff")},{guid.newguid().tostring()}";
begininvoke(new action(() =>
{
lblist.add(str);
listbox1.datasource = null;
listbox1.datasource = lblist;
}));
thread.sleep(500);
if (cts.iscancellationrequested)
{
break;
}
}
}
private void cancelclick(object sender, eventargs e)
{
cts.cancel();
string str = $"i={i},task cancelled";
begininvoke(new action(() =>
{
lblist.add(str);
listbox1.datasource = null;
listbox1.datasource = lblist;
}));
}
}
int i = 0;
list<string> lblist = new list<string>();
private bool iscancelled { get; set; }
public form1()
{
initializecomponent();
listbox1.datasource = lblist;
}
//start or restart
private void startclick(object sender, eventargs e)
{
iscancelled = false;
if(!iscancelled)
{
task testtask = task.run(() =>
{
addcontenttolbx();
});
}
}
private void addcontenttolbx()
{
while (i < 10000)
{
if (!iscancelled)
{
string str = $"i={i},{datetime.now.tostring("yyyymmddhhmmssffff")},{guid.newguid().tostring()}";
begininvoke(new action(() =>
{
lblist.add(str);
listbox1.datasource = null;
listbox1.datasource = lblist;
}));
thread.sleep(500);
}
else
{
break;
}
i++;
}
}
private void cancelclick(object sender, eventargs e)
{
iscancelled = true;
string str = $"i={i},task cancelled";
begininvoke(new action(() =>
{
lblist.add(str);
listbox1.datasource = null;
listbox1.datasource = lblist;
}));
}
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