private string BuildPath(int width, int height, double resolution, int level, int column, int row) { string path = string.Empty; if (level > -1) { path = RootName + "\\" + width + "x" + height + "\\" + level + "\\" + column + "\\" + row; } else { path = RootName + "\\" + width + "x" + height + "\\" + resolution + "\\" + column + "\\" + row; } return path; }