C#

Mark Nischalke wrote:

You could also use something like Data Source=MyDB.mdf for a file based database for the application.

Again, with all of the refences you have claimed to have read I find it difficult to believe this has not been explained.

protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);

    System.Drawing.Imaging.ImageAttributes attr = new System.Drawing.Imaging.ImageAttributes();
    System.Drawing.Imaging.ColorMatrix matrix = new System.Drawing.Imaging.ColorMatrix();

    matrix[3, 3] = 0.2F;

    attr.SetColorMatrix(matrix);
    Image img = Image.FromFile(IMAGEPATH);
    e.Graphics.DrawImage(img, ClientRectangle, 0F, 0F, img.Width, img.Height, GraphicsUnit.Pixel, attr);
}

1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1

using System.Collections.Generic;
Dictionary<string, int> openWith = new Dictionary<string, int>();

class DtoListItem
{
    public int SomeInt;
    public string[] SomeStringArray;
}
 
// In some method somewhere...
List<DtoListItem> myList = new List<DtoListItem>();