ProgressBar is slow in Windows Forms

Question

I\'m using Windows Vista and Visual Studio 2010. Create a .Net 4 Windows Forms Application. Drop a progress bar on the default form, add code to handle the form load event a

Answer 1

I liked Derek W's answer and I managed to find a solution which supports data binding. I inherited from System.Windows.Forms.ProgressBar and created new bindable property. Otherwise it's the same:

[DefaultBindingProperty("ValueNoAnimation")]
public class NoAnimationProgressBar : ProgressBar
{
    /// 

    /// Sets the progress bar value, without using 'Windows Aero' animation.
    /// This is to work around (hack) for a known WinForms issue where the progress bar 
    /// is slow to update. 
    /// 
    public int ValueNoAnimation
    {
        get => Value;
        set
        {
            // To get around the progressive animation, we need to move the 
            // progress bar backwards.
            if (value != Maximum)
                Value = value + 1; // Move past
            else
            {
                // Special case as value can't be set greater than Maximum.
                Maximum = value + 1;
                Value = value + 1;
                Maximum = value;
            }

            Value = value; // Move to correct value
        }
    }
}

You can bind to the property like this (viewModel has an int property called Value):

var dataSource = new BindingSource { DataSource = _viewModel };
progressBarBindingHack.DataBindings.Add("ValueNoAnimation", dataSource, "Value");