unable to convert type int [] to int

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C#

int [] array;
int [,] population;
for (i=0;i<columns,i++)
{
   for(j=0;j<rows;j++)>
   {
      population[i, j] = array;
   }
}

the error is unable to convert type int [] to int
what is wrong

Posted 2-May-13 22:25pm

mahmoud.abdallah

Updated 2-May-13 22:32pm

tumbledDown2earth

v3

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CHill60 3-May-13 4:33am

You will find this useful http://msdn.microsoft.com/en-us/library/aa288453(v=vs.71).aspx[^]

3 solutions

Solution 4

your code is wrong..
if u want to use an element inside an array You must specify the index like:

C#

for(int i = 0;i<10;i++)
{
  for(int j = 0; j< 20; j++)
  {
    Population[i][j] = array[i];
  }
}

it means : hey compiler take the located at array and index i an put that in population at index i and j.

Posted 2-May-13 22:35pm

RedSakura

Updated 2-May-13 22:38pm

v2

Comments

mahmoud.abdallah 3-May-13 4:42am

i do not want one value i want to put the whole array in each index of the 2dArray

Solution 2

its compiler error but obeous..
your assing int to int[].
code should be like,

C++

int array;
int Population[10][20];
for(int i = 0;i<10;i++)
{
  for(int j = 0; j< 20; j++)
  {
    Population[i][j] = array;
  }
}

Posted 2-May-13 22:32pm

Coder Block

Comments

CHill60 3-May-13 4:39am

This doesn't even compile!

Coder Block 3-May-13 4:42am

Variable name array is predefine used in system.change it to array1.

mahmoud.abdallah 3-May-13 4:44am

i wrote it like that just to express my problem >>>thanks for your comment

CHill60 3-May-13 4:52am

I spotted that bit - how about the error "Syntax error, bad array declarator."?

mahmoud.abdallah 3-May-13 4:43am

that is what i did

Coder Block 3-May-13 4:45am

you are using array[].
what exactly you required..

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CPallini · Accepted Answer · 2013-05-02T22:33:00

Quote:
the error is unable to convert type int [] to int
what is wrong

Your approach is wrong: an array item (like population[i,j]) is a scalar type (i.e. a single number in your case) while a whole array (like array) is a collection of scalar types (that is array contains many numbers). You cannot assign a collection to a single number.

The following line

C#

population[i, j] = array[j];

would be syntactically correct (however it could be semantically wrong, it could produce a runtime error, etc...).

[Update]
You cannot do that with bidimensional arrays, you have to use jagged arrays, see, for instance:
"c# assign 1 dimensional array to 2 dimensional array syntax"[^] at Stack Overflow.
[/Update]

unable to convert type int [] to int

3 solutions

Solution 3

Solution 4

Solution 2

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