faresabb2 faresabb2 - 2 years ago 211
Vb.net Question

Visual basic circular progress bar

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

enter image description here

Answer Source

How about just drawing your own using GDI+.

You can convert this to your own usercontrol later but this will get you started. It should be fairly self explanatory:

Private Sub Form2_Paint(sender As Object, e As PaintEventArgs) Handles Me.Paint
    DrawProgress(e.Graphics, New Rectangle(5, 5, 60, 60), 40)
    DrawProgress(e.Graphics, New Rectangle(80, 5, 60, 60), 80)
    DrawProgress(e.Graphics, New Rectangle(155, 5, 60, 60), 57)
End Sub

Private Sub DrawProgress(g As Graphics, rect As Rectangle, percentage As Single)
    'work out the angles for each arc
    Dim progressAngle = CSng(360 / 100 * percentage)
    Dim remainderAngle = 360 - progressAngle

    'create pens to use for the arcs
    Using progressPen As New Pen(Color.LightSeaGreen, 2), remainderPen As New Pen(Color.LightGray, 2)
        'set the smoothing to high quality for better output
        g.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias
        'draw the blue and white arcs
        g.DrawArc(progressPen, rect, -90, progressAngle)
        g.DrawArc(remainderPen, rect, progressAngle - 90, remainderAngle)
    End Using

    'draw the text in the centre by working out how big it is and adjusting the co-ordinates accordingly
    Using fnt As New Font(Me.Font.FontFamily, 14)
        Dim text As String = percentage.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)))
        'now we have all the values draw the text
        g.DrawString(text, fnt, Brushes.Black, textPoint)
    End Using
End Sub


enter image description here

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