System.indexoutofrangeexception: 'index was outside the bounds of the array.'

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Got

System.IndexOutOfRangeException: 'Index was outside the bounds of the array.'

as the index reaches 128. How can it be resolved? Thanks.

What I have tried:

System.IndexOutOfRangeException: 'Index was outside the bounds of the array.'

Posted 19-May-23 3:46am

s yu

Updated 19-May-23 3:55am

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Richard Deeming · Accepted Answer · 2023-05-19T03:55:00

Solution 1

You can resolve it by not requesting items which are outside the bounds of the array.

Remember, the valid indexes for an array range from 0 to array.Length - 1. If you request an item outside of those bounds, you will get this exception.

Posted 19-May-23 3:55am

Richard Deeming

Comments

s yu 19-May-23 10:17am

Richard: Thanks for your post. The piece of code is
for (int j = 0; j < r.Length - 1; j++) { // the Length=145
ar[k+j, 0] = r[j][0]; // out of bound at j=128
}
Any idea? Thanks again.

Richard Deeming 19-May-23 10:19am

So either k + j is less than 0 or greater than ar.GetLength(0) - 1; or r[j].Length is equal to 0.

You need to debug your code to find out which.

s yu 19-May-23 10:35am

You are RIGHT! Thanks.