Index out of range exception in 2D Array (C#)

char[,] map = new char[10, 20];

for (int i = 0; i < map.GetLength(0); i++)
{
for (int j = 0; i < map.GetLength(1); j++)
map[i, j] = '.';
}


I just simply want to make all the elements of map[i,j] to be a point , but always when I try to run it the compiler says: Index out of range exception. Maybe it's a stupid question but I had to ask it.

2 Answers
2

See the i in your j-loop

i

for (int j = 0; j < map.GetLength(1); j++)


You use i instead of j look at this:

i

j

char[,] map = new char[10, 20];

for (int i = 0; i < map.GetLength(0); i++)
{
for (int j = 0; j < map.GetLength(1); j++)
{
map[i, j] = '.';
}
}


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