Do like below...
string[] splitString = myData.Split(' ');
if(splitString != null)
{
if(splitString.Length > 0)
{
Grid viewGrid = new Grid(Coordinates(Convert.ToInt32(splitString[0]), Convert.ToInt32(splitString[1]));
viewGrid.AddToCollection(new Rov(Convert.ToInt32(splitString[2]), Convert.ToInt32(splitString[3]), splitString[4], splitString[5]));
viewGrid.AddToCollection(new Rov(Convert.ToInt32(splitString[6]), Convert.ToInt32(splitString[7]), splitString[8], splitString[9]));
}
}