I’m Trying to use event datagridview RowPostPaint but output image in row header becomes blurry and there is a white color on each side of the in image with vb.net.

If you look at the screenhot, the result of a good image appears in the picturebox, how can I have the same result as the picturebox. Or something is wrong with my code.

Please Guide me

Thanks

Public Class Form1

    Private _source As New BindingSource()
    Private _person As List(Of person) = Nothing

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        _person = New List(Of person)()
        _person.Add(New person With {
            .ID = 1,
            .Name = "Tridip"
        })
        _person.Add(New person With {
            .ID = 2,
            .Name = "Sujit"
        })
        _person.Add(New person With {
            .ID = 3,
            .Name = "Arijit"
        })
        _source.DataSource = _person
        DataGridView1.DataSource = _source

    End Sub
    Private Sub DataGridView1_RowPostPaint(sender As Object, e As DataGridViewRowPostPaintEventArgs) Handles DataGridView1.RowPostPaint
        'Convert the image to icon, in order to load it in the row header column
        Dim myBitmap As New Bitmap(imageList1.Images(0))
        Dim myIcon As Icon = Icon.FromHandle(myBitmap.GetHicon())

        Dim graphics As Graphics = e.Graphics

        'Set Image dimension - User's choice
        Dim iconHeight As Integer = 20
        Dim iconWidth As Integer = 20

        'Set x/y position - As the center of the RowHeaderCell
        Dim xPosition As Integer = e.RowBounds.X + (DataGridView1.RowHeadersWidth / 2)
        Dim yPosition As Integer = e.RowBounds.Y + ((DataGridView1.Rows(e.RowIndex).Height - iconHeight)  2)

        Dim rectangle As New Rectangle(xPosition, yPosition, iconWidth, iconHeight)
        graphics.DrawIcon(myIcon, rectangle)

    End Sub
End Class


Public Class person
    Public Property ID As Integer
    Public Property Name As String
End Class