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Good Morning everyone ^^
Today is supposed to be a happy day but i stay at home a whole day because of stomachache and didnt come to the main house where family and relative come (and avoid the interrogation session from them too >_< hehehe.. kidding)..
But i still got the cookies and food when they got home
View attachment 144125
Hope you all have a great day ^^
Today is supposed to be a happy day but i stay at home a whole day because of stomachache and didnt come to the main house where family and relative come (and avoid the interrogation session from them too >_< hehehe.. kidding)..
But i still got the cookies and food when they got home
View attachment 144125
Hope you all have a great day ^^
Good Morning everyone ^^
Today is supposed to be a happy day but i stay at home a whole day because of stomachache and didnt come to the main house where family and relative come (and avoid the interrogation session from them too >_< hehehe.. kidding)..
But i still got the cookies and food when they got home
View attachment 144125
Hope you all have a great day ^^
Today is supposed to be a happy day but i stay at home a whole day because of stomachache and didnt come to the main house where family and relative come (and avoid the interrogation session from them too >_< hehehe.. kidding)..
But i still got the cookies and food when they got home
View attachment 144125
Hope you all have a great day ^^
Hope your tummy feels better.
Was trying to decide whether to post this here or not but here goes...
A few months ago I decided to take up singing as a hobby and well this a recording I just made of me singing "The Flame" by cheap trick (its an 80's song)..
[video=youtube;YcBj9wJl7HE]https://www.youtube.com/watch?v=YcBj9wJl7HE&feature=youtu.be[/video]
A few months ago I decided to take up singing as a hobby and well this a recording I just made of me singing "The Flame" by cheap trick (its an 80's song)..
[video=youtube;YcBj9wJl7HE]https://www.youtube.com/watch?v=YcBj9wJl7HE&feature=youtu.be[/video]
W
Eyh, programming guys. I am new to this whole threading business.
Why can't I access a control from a different thread?
- and why do I get an error message about this only if I close my streanwriter after ending the threads?
+ Ia there any logical reason that a streamwriter file should be closed before I use the close method on it?
Cannot write to a closed TextWriter pops up as a errorbox
.....
Message "Cross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on." string appears in the call stack
There is no error message from VS if I remove the close method.
So withtout it, the program runs and the listbox is filled according to plan
but the output file has no info in it after a run in either case
I know I am probably being braindead, but you should be used to that by now
PS: this.Invoke((MethodInvoker)(() =>
helped with the listbox, but makes no difference on writing to file
.................
namespace TestRE_Ex1
{
public partial class Form1 : Form
{
private static Mutex mutex = new Mutex();
private static string filePath = "output.txt";
private static System.IO.StreamWriter file = new System.IO.StreamWriter(filePath);
public Form1()
{
InitializeComponent();
}
private Thread trd;
private void startThreadsButton_Click(object sender, EventArgs e)
{
MessageBox.Show("Starting", MessageBoxButtons.OK, MessageBoxIcon.Warning);
for (int i = 0; i < 10; i++) {
trd = new Thread(() => threadTask(i+1));
trd.Start();
}
// file.Close();
}
Random rnd;
private void threadTask(int id)
{
mutex.WaitOne();
//listBox1.Items.Add("Starting thread " + (id + 1));
this.Invoke((MethodInvoker)(() => listBox1.Items.Add("Starting thread " + (id + 1))));
this.Invoke((MethodInvoker)(() => listBox1.Refresh()));
rnd = new Random();
int ms = rnd.Next(1000);
string info = "Thread id:" + id + ". Sleep time in ms:" + ms;
Thread.Sleep(ms);
writeToFile(info);
this.Invoke((MethodInvoker)(() => listBox1.Items.Add("Finishing thread " + id + "Sleep time:" + ms )));
this.Invoke((MethodInvoker)(() => listBox1.Refresh()));
mutex.ReleaseMutex(); //*
}
private void writeToFile(string info)
{
file.WriteLine(info);
}
}
}
// Beginner's Guide to Threading in .NET: Part 3 of n - CodeProject
// c# - How to add item to listBox from other thread? - Stack Overflow
Why can't I access a control from a different thread?
- and why do I get an error message about this only if I close my streanwriter after ending the threads?
+ Ia there any logical reason that a streamwriter file should be closed before I use the close method on it?
Cannot write to a closed TextWriter pops up as a errorbox
.....
Message "Cross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on." string appears in the call stack
There is no error message from VS if I remove the close method.
So withtout it, the program runs and the listbox is filled according to plan
but the output file has no info in it after a run in either case
I know I am probably being braindead, but you should be used to that by now
PS: this.Invoke((MethodInvoker)(() =>
helped with the listbox, but makes no difference on writing to file
.................
namespace TestRE_Ex1
{
public partial class Form1 : Form
{
private static Mutex mutex = new Mutex();
private static string filePath = "output.txt";
private static System.IO.StreamWriter file = new System.IO.StreamWriter(filePath);
public Form1()
{
InitializeComponent();
}
private Thread trd;
private void startThreadsButton_Click(object sender, EventArgs e)
{
MessageBox.Show("Starting", MessageBoxButtons.OK, MessageBoxIcon.Warning);
for (int i = 0; i < 10; i++) {
trd = new Thread(() => threadTask(i+1));
trd.Start();
}
// file.Close();
}
Random rnd;
private void threadTask(int id)
{
mutex.WaitOne();
//listBox1.Items.Add("Starting thread " + (id + 1));
this.Invoke((MethodInvoker)(() => listBox1.Items.Add("Starting thread " + (id + 1))));
this.Invoke((MethodInvoker)(() => listBox1.Refresh()));
rnd = new Random();
int ms = rnd.Next(1000);
string info = "Thread id:" + id + ". Sleep time in ms:" + ms;
Thread.Sleep(ms);
writeToFile(info);
this.Invoke((MethodInvoker)(() => listBox1.Items.Add("Finishing thread " + id + "Sleep time:" + ms )));
this.Invoke((MethodInvoker)(() => listBox1.Refresh()));
mutex.ReleaseMutex(); //*
}
private void writeToFile(string info)
{
file.WriteLine(info);
}
}
}
// Beginner's Guide to Threading in .NET: Part 3 of n - CodeProject
// c# - How to add item to listBox from other thread? - Stack Overflow
We have employees who do that quite often.
"Where were you? You were supposed to take my place at four!"
:goofy grin: "Really? I thought I was supposed to come in at five."
No apology, no thanks for staying for me, no nothing. Yeah, you're welcome for staying here an extra hour to cover for your dilatory self.
"Where were you? You were supposed to take my place at four!"
:goofy grin: "Really? I thought I was supposed to come in at five."
No apology, no thanks for staying for me, no nothing. Yeah, you're welcome for staying here an extra hour to cover for your dilatory self.