二维数组索引超出范围异常

Question

As soon as i enter the while loop the program throws Index out of range exception, without getting rows and columns value. getint is a method to get user input while making sure the values are in range

 while(filled>0)
        {
            row = getint("row:  ");
            row--;
            column = getint("column:  ");
            column--;
            fields[row, column]=getint("value:  ");
            filled--;
        }

edit:

static int getint(string question)
    {
        string temp;
        int tempint=0;
        while (check != 0)
        {
            check = 0;
            Console.Write("\nPlease enter the {0}",question);
            temp = Console.ReadLine();
            if(!int.TryParse(temp, out tempint))
            {
                check++;
            }
            if(question.Length<14 & (tempint<1 | tempint>9))
            {
                check++;
                Console.WriteLine("Invalid Input");
            }
        }
        return tempint;
    }

Answer 1

if the code out of bounds can only happen in fields[row, column] the You can add a check for out of bound of row and column

row = Math.Max(row,0);
column= Math.Max(column,0);

row = Math.Min(fields.GetUpperBound(0), row);
column= Math.Min(fields.GetUpperBound(1), column);

Answer 2

so, the error was in while loop, i missed the fact that i used global variable "check" and did not reset its value of so when it exit the loop first time its value was set to 0 and hence the exception.

Answer 3

I've added this check at the beginning of the loop which solved my issue:

if (arrLocations[0, 0] == null) break;