Replace an image in ImageList : ImageList « 2D Graphics « VB.Net Tutorial

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VB.Net
VB.Net Tutorial » 2D Graphics » ImageList 
15. 54. 3. Replace an image in ImageList
Replace an image in ImageList
 

imports System
imports System.Drawing
imports System.Windows.Forms

public class ImageLists : inherits Form

  dim imgList as ImageList = new ImageList()
    dim lbl as Label 
    dim lnk as LinkLabel
    dim btn as Button
    dim nmbrUpDown as NumericUpDown

  public sub New()
       Size = new Size(300,300)

    dim img as Image
    dim i as integer

    dim arFiles as string() {"1.ico","2.ico","3.ico","4.ico"}

    for i = to arFiles.Length - 1
      img = Image.FromFile(arFiles(i))
      imgList.Images.Add(img)
    next

    imgList.ImageSize = new Size(3232)

    img = Image.FromFile("5.ico")
    imgList.Images(imgList.Images.Count - 1= img

       lbl = new Label()
       lbl.Parent = me
       lbl.Text = "Label"
       lbl.Location = new Point(0,0)
       lbl.Size = new Size (200,20)
       lbl.BorderStyle = BorderStyle.Fixed3D
    lbl.ImageList = imgList
    lbl.ImageIndex = 0
    lbl.ImageAlign = ContentAlignment.MiddleRight

    '  Create numeric updown to select the image
    nmbrUpDown = new NumericUpDown()
    nmbrUpDown.Parent = me
    nmbrUpDown.Location = new Point(060)
    nmbrUpDown.Value = 0
    nmbrUpDown.Minimum = 0
    nmbrUpDown.Maximum = imgList.Images.Count - 1
    nmbrUpDown.Width = 50
    nmbrUpDown.ReadOnly = true
    AddHandler nmbrUpDown.ValueChanged,AddressOf nmbrUpDown_ValueChanged
    end sub

    public shared sub Main() 
      Application.Run(new ImageLists())
    end sub

    private sub nmbrUpDown_ValueChanged(ByVal sender as object,ByVal e as EventArgs)
      dim n as NumericUpDown  = CType(sender, NumericUpDown)
    lbl.ImageIndex = CType(n.Value, Integer)
    end sub
end class

        
15. 54. ImageList
15. 54. 1. Create ImageList in your codeCreate ImageList in your code
15. 54. 2. Change ImageList SizeChange ImageList Size
15. 54. 3. Replace an image in ImageListReplace an image in ImageList
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