该代码有点不寻常.
我会这样:

That code is a bit unusual.
I would do it this way:

int yLoc = 28;
int xLoc = 6;
for (int i = 0; i < dt.Rows.Count; i++)
    {
    RadioButton rdo = new RadioButton();
    rdo.AutoSize = false;
    rdo.Height = 20;
    rdo.Width = 215;
    rdo.Padding = new Padding(-10);

    if (i == 4)
        {
        yLoc = 28;
        xLoc = 235;
        }

    rdo.Location = new Point(xLoc, yLoc);
    yLoc += 25;

    rdo.Font = new System.Drawing.Font(new FontFamily("Mangal"), 9, FontStyle.Bold);
    rdo.Text = dt.Rows[i]["Rolename"].ToString();
    pnlRole.Controls.Add(rdo);
    rdo.CheckedChanged += new EventHandler(radiobuttonchecked);
    }

[edit] Dunno的方式，但<"更改为<<"，已修复-OriginalGriff [/edit]

[edit]Dunno how, but "<" changed to "<<", Fixed - OriginalGriff[/edit]