Progress Bar

[S K Y]

Hi, I want to do my progress bar in to pop up progress bar. i mean when i load something i want to pop up progress bar while progressing only. how can i do that. i wrote the coding for static progress bar. i mean drag & drop progrss bar from tool in to my form.

ProgressBar ProBar = new ProgressBar();

    private void import(object sender, EventArgs e)
    {
        if (listView1.Items.Count == 0)
        {
            ImageList imageList = new ImageList();
            imageList.ImageSize = new Size(100, 80);
            imageList.ColorDepth = ColorDepth.Depth32Bit;
            this.ProBar = new System.Windows.Forms.ProgressBar();
            this.ProBar.TabIndex = 0;
            this.ProBar.Maximum = dlg.FileNames.Length;
            this.ProBar.Minimum = 1;
            this.ProBar.Step = 1;
            
            foreach (string path in dlg.FileNames)
            {
                FileInfo fileInfo = new FileInfo(path);
                listView1.Items.Add(fileInfo.Name);
                imageList.Images.Add(Bitmap.FromFile(path));                    
                ProBar.PerformStep();
            }

A S E L A

[N a v a n e e t h]

I guess I have already answered this few days back. To reiterate, you need to create a new form and place progress bar in that. Create methods in that form which updates the progress bar. You can call this method from your form whenever a progress happens. :)

Navaneeth How to use google | Ask smart questions

[S K Y]

Hi, thanks a lot for your reply, may i know some thing... how about if i creat a method in my exicting form and cal that method when i need progress bar.is this posible to do?? i tried this out but by this way i couldn't get progress bar like message box....

A S E L A

[N a v a n e e t h]

S K Y wrote:

i couldn't get progress bar like message box..

What do you mean by progress bar like message box? A modal progress bar which will not allow to click on other forms when progress is shown? If yes, here is a method 1 - Create a new form say Progress 2 - Add a progress bar say "pb" to this form. 3 - Create a delegate in this form which will call back the method to execute from the progress window. Refer the following code

// use this class to interact with progress form your form
public class ProgressEventArgs
{
ProgressBar pb;
Form form;

public ProgressEventArgs(ProgressBar pb, Form form)
{
    this.pb = pb;
    this.form = form;
}

public void PerformProgress(int value)
{
    form.BeginInvoke((MethodInvoker)delegate
    {
        this.pb.Value = value;
    });
}

public void StopProgress()
{
    form.BeginInvoke((MethodInvoker)delegate
    {
        form.Close();
    });
}

}

public delegate void WorkStartedHandler(ProgressEventArgs pe);

// your progress form
public partial class Progress : Form
{
WorkStartedHandler method;
public Progress()
{
InitializeComponent();
}

public void ShowProgress(int minimum, int maximum, WorkStartedHandler method)
{
    pb.Minimum = minimum;
    pb.Maximum = maximum;
    this.method = method;
    new Thread(DoWork).Start();
    this.ShowDialog();
}

void DoWork()
{
    method(new ProgressEventArgs(this.pb, this));
}

}

The above code is simple and self explaining. You can use this like

private void import(object sender, EventArgs e)
{
if (listView1.Items.Count == 0)
{
Progress p = new Progress();
p.ShowProgress(1, dlg.FileNames.Length, DoWork);
}
}

void DoWork(ProgressEventArgs pe)
{
int i = 0;
foreach (string path in dlg.FileNames)
{
.............
.............
++i;
pe.PerformProgress(i);
}
pe.StopProgress();
}

I wrote the above code in CP editor directly, so expect some compile time errors. :)

Navaneeth How to use google |