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August 4th, 2008, 11:05 PM
#1
[RESOLVED] Threads and Delegates
Recently i have been learning how to create a multi-threaded application.
I have three items: textbox1, texbox2, and label1
In the non - UI thread i need the information from textbox1, and textbox2 for the thread to run successfully.
i plan on using a for loop to do a certain command a certain amount of times specified by my for loop ('<=10').
I also need to update label1.text on every time it goes through the for loop,
every time it goes through the for loop i need to update my int count by increments of 1 ('count++').
so 'label1.text = "Count: " + count.ToString();'
I have read a few articles on using delegates to do this but i need help "Understanding" it.
Can someone show me a quick example on how to do that?
I have created my own thread i do not use the background worker.
Thanks,
Pale.
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August 5th, 2008, 01:44 AM
#2
Re: Threads and Delegates
I made something very similar not long ago:
Non-UI class:
Code:
public delegate void CountChangedHandler();
public event CountChangedHandler CountChanged;
UI-class
Code:
private int count = 0;
//Put this in the constructor
Driver.CountChangedHandler myCountChangedHandler = Increment;
driver.CountChanged += myCountChangedHandler;
public delegate void UpdatePostCount();
private void Increment()
{
try
{
txtCount.Invoke(new UpdatePostCount(UpdateText));
}
catch (Exception x)
{
}
}
private void UpdateText()
{
try
{
count++;
label1.Text = count.ToString();
}
catch
{
}
}
It's not a bug, it's a feature!
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