C#

public class DownloadItem : INotifyPropertyChanged
{
	public int Progress { get; private set;}
	public string State { get; private set;}
	/*
	... more properties
	*/
}

/*
GetDownloads() returns BindingList<DownloadItem>
*/
dataGridViewDownloads.DataSource = _manager.GetDownloads();

protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex,
            DataGridViewElementStates cellState, object value, object formattedValue, string errorText,
            DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle,
            DataGridViewPaintParts paintParts)
{
	StringFormat stringFormat = new StringFormat { 
		Alignment = StringAlignment.Center, 
		LineAlignment = StringAlignment.Center, 
		Trimming = StringTrimming.None, 
		FormatFlags = StringFormatFlags.NoClip | StringFormatFlags.NoWrap 
	};
	base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, 
		formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
	/*
	Here I access the underlying object for this row
	*/
	var item = (DownloadItem)DataGridView.Rows[rowIndex].DataBoundItem;
	/*
	Now I can display whatever properties I can get from the DownloadItem with graphics.DrawString() for example
	*/
	graphics.DrawString(item.Progress + "% " + item.State, cellStyle.Font, new SolidBrush(cellStyle.ForeColor), cellBounds, stringFormat);
}

string URL = "http://somesite.net/results";
var httpWebRequest = (HttpWebRequest)WebRequest.Create(URL);
httpWebRequest.Headers.Add("Authorization", "Basic " + auth);
httpWebRequest.ContentType = "application/x-www-form-urlencoded";
httpWebRequest.Method = "GET";

using System.IO;
using System.Security.AccessControl;

// in Form scope
private string filePath = validFilepath;

private void setNoDelete()
{
    // current user account
    string user = Environment.UserDomainName + "\\" + validAccountName;
    
    // current security object
    FileSecurity security = File.GetAccessControl(filePath);
    
    // add rule
    security.AddAccessRule(new FileSystemAccessRule(user, FileSystemRights.Delete, AccessControlType.Deny));
    
    // set access
    File.SetAccessControl(filePath, security);
}