Modify the Thread Operation

How can we modify the thread operation by using another thread.like i want to change the label text which is updating in a thread operation,bur i want to change the text of label by another thread without disturbing the original operation.for example in first thread label text incremented by one and when it reaches to 9 it again becomes 0,but when i run my second thread i want to increment the label text by 2 and maximum range is 100.Thanks

Try this:

using System.Threading; // add this using directive

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

Thread t1 = new Thread(ThreadMethod1);

t1.IsBackground = true;

Thread t2 = new Thread(ThreadMethod2);

t2.IsBackground = true;

t1.Start();

Thread.Sleep(500);

t2.Start();

}

private void ThreadMethod1()

{

int i = 0;

while(true)

{

Thread.Sleep(1000);

this.Invoke((Action)(() =>

{

label1.Text = i.ToString();

i++;

if (i == 10) i = 0;

}));

}

private void ThreadMethod2()

{

int i = 0;

while (true)

{

Thread.Sleep(1000);

this.Invoke((Action)(() =>

{

label1.Text = i.ToString();

i += 2;

if (i == 100) i = 0;

}));

}

private void button2_Click(object sender, EventArgs e)

{

this.Close();

}

}

The label should display two intermingled series of numbers as it's independently updated by the two threads.

1 Reply

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Vulpes12y ago
Accepted answer
Try this:

using System.Threading; // add this using directive

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
Thread t1 = new Thread(ThreadMethod1);
t1.IsBackground = true;
Thread t2 = new Thread(ThreadMethod2);
t2.IsBackground = true;
t1.Start();
Thread.Sleep(500);
t2.Start();
}

private void ThreadMethod1()
{
int i = 0;
while(true)
{
Thread.Sleep(1000);
this.Invoke((Action)(() =>
{
label1.Text = i.ToString();
i++;
if (i == 10) i = 0;
}));
}
}

private void ThreadMethod2()
{
int i = 0;
while (true)
{
Thread.Sleep(1000);
this.Invoke((Action)(() =>
{
label1.Text = i.ToString();
i += 2;
if (i == 100) i = 0;
}));
}
}

private void button2_Click(object sender, EventArgs e)
{
this.Close();
}
}

The label should display two intermingled series of numbers as it's independently updated by the two threads.