Visual basic circular progress bar

Question

I\'m trying to make a software with good UI , but i\'m not professional in VB ... How can i make a circular progress bar ?

for Example

Answer 1

Here's an example of how to update the progress circular bar just when you need, with no flickering due to refresh.

Based on Matt's Code

Simply copy the code in your form Paint Event, properly changing the rectangle size and location to host the circle in your form. Percent is a global variable, when it changes, you can call me.refresh() method to trigger the repaint!

Private Sub Form1_Paint(sender As Object, e As PaintEventArgs) Handles MyBase.Paint

    Dim g As Graphics = e.Graphics
    Dim rect As New Rectangle(70, 45, 90, 90)


    Dim curvatura_progress = CSng(360 / 100 * percent)
    Dim curvatura_rimanente = 360 - curvatura_progress 


    Using tratto_progresso As New Pen(Color.Lime, 4), tratto_rimanente As New Pen(Color.White, 4)

        g.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias

        g.DrawArc(tratto_progresso, rect, -90, curvatura_progress)
        g.DrawArc(tratto_rimanente, rect, curvatura_progress - 90, curvatura_rimanente)
    End Using

           Using fnt As New Font(Me.Font.FontFamily, 14)

        Dim text As String = percent.ToString + "%"

                    Dim textSize = g.MeasureString(text, fnt)
        Dim textPoint As New Point(CInt(rect.Left + (rect.Width / 2) - (textSize.Width / 2)), CInt(rect.Top + (rect.Height / 2) - (textSize.Height / 2)))

        g.DrawString(text, fnt, Brushes.Black, textPoint)

    End Using

End Sub