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Simple Form Question

Posted on 2006-06-29
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Last Modified: 2010-04-17
I have a C# form with three objects.
A label, a textfield and a button.
When the button is pressed, it will run a for loop
run where i=0 until i=integer entered in text field.

I want to do it where if the number entered is large then after the button is pressed, the label will say "Running..." until it's done, then "completed." when it's done.

here's my code

            label2.Text = "Running.";
            for (int i = 0; i < Convert.ToInt32(textBox1.Text); i++)
            {
            }
            label2.Text = "Completed.";

I know it's amateurish to do it this way cuz it doesn't work. It will freeze until it's done counting then label2.Text will just = "Completed."  And "running." is never seen.

How do I code it so it will say "Running" after the button is pressed and show "Completed" when it is completed?
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Question by:flam79
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1 Comment
 
LVL 18

Accepted Solution

by:
Ravi Singh earned 250 total points
ID: 17014275
One approach would be to call Application.DoEvents() in your loop, this will process any windows messages that are waiting, try:

            label2.Text = "Running.";
            for (int i = 0; i < Convert.ToInt32(textBox1.Text); i++)
            {
                    //... some processing here
                    Application.DoEvents();
            }
            label2.Text = "Completed.";
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