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  1. PO
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    <p>We are use modal form with <code>BackgroundWorker</code> for such a thing.</p> <p>Here is quick solution:</p> <pre><code> public class ProgressWorker&lt;TArgument&gt; : BackgroundWorker where TArgument : class { public Action&lt;TArgument&gt; Action { get; set; } protected override void OnDoWork(DoWorkEventArgs e) { if (Action!=null) { Action(e.Argument as TArgument); } } } public sealed partial class ProgressDlg&lt;TArgument&gt; : Form where TArgument : class { private readonly Action&lt;TArgument&gt; action; public Exception Error { get; set; } public ProgressDlg(Action&lt;TArgument&gt; action) { if (action == null) throw new ArgumentNullException("action"); this.action = action; //InitializeComponent(); //MaximumSize = Size; MaximizeBox = false; Closing += new System.ComponentModel.CancelEventHandler(ProgressDlg_Closing); } public string NotificationText { set { if (value!=null) { Invoke(new Action&lt;string&gt;(s =&gt; Text = value)); } } } void ProgressDlg_Closing(object sender, System.ComponentModel.CancelEventArgs e) { FormClosingEventArgs args = (FormClosingEventArgs)e; if (args.CloseReason == CloseReason.UserClosing) { e.Cancel = true; } } private void ProgressDlg_Load(object sender, EventArgs e) { } public void RunWorker(TArgument argument) { System.Windows.Forms.Application.DoEvents(); using (var worker = new ProgressWorker&lt;TArgument&gt; {Action = action}) { worker.RunWorkerAsync(); worker.RunWorkerCompleted += worker_RunWorkerCompleted; ShowDialog(); } } void worker_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e) { if (e.Error != null) { Error = e.Error; DialogResult = DialogResult.Abort; return; } DialogResult = DialogResult.OK; } } </code></pre> <p>And how we use it:</p> <pre><code>var dlg = new ProgressDlg&lt;string&gt;(obj =&gt; { //DoWork() Thread.Sleep(10000); MessageBox.Show("Background task completed "obj); }); dlg.RunWorker("SampleValue"); if (dlg.Error != null) { MessageBox.Show(dlg.Error.Message, "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); } dlg.Dispose(); </code></pre>
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    1. PODisplay progress bar while doing some work in C#?
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    1. USSergey Mirvoda
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    1. CODo you have a sample application, its hard for me to understand this code, what is ProgressWorker?
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      1. USPriyank Bolia
    2. COoh, sorry for that. ProgressWorker is a BackgroundWorker with Action as a constructor parameter. I'll modify sample.
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      1. USSergey Mirvoda
    3. CO@Priyank Bolia code updated.
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      1. USSergey Mirvoda
 

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