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adding progress bar

Posted on 2011-09-25
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Last Modified: 2012-05-12
Hi

I have an a windows form application that use one class (its name is Parser)
this form has a button and when i click on the windows form application button it call one of the parser class method . this method simply read text file line after line and write each line to separate file.
i would like to add a progress bar to the form in order to show the progress( it is a very large file )

any idea how to do that? I have in the Parse class 2 property one for the number of line in the file and the second how much lines already checked.

here is my button2_Click function

   
private void button2_Click(object sender, EventArgs e)
        {
            if (this.textBox1 != null & this.textBox2 != null)
            {
                inst.init(this.textBox1.Text, this.textBox2.Text);
                //this.progressBar1.Show();
                
                inst.ParseTheFile();
                System.Windows.Forms.MessageBox.Show("Parsing finish successfully"); 
            }
        }

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Question by:dpatel_team
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2 Comments
 
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Accepted Solution

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Mike Tomlinson earned 500 total points
ID: 36595417
You need to call ParseTheFile() from a different thread, or use a BackgroundWorker() control.

A good technique would be to make the Parser() class raise a custom Progress() event that you subscribe to.  When that event is received you update the Form via delegates/BeginInvoke() or use the ReportProgress() method of the BackgroundWorker().
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