Adding array to Jagged Array c#

Question

I've had a look at both ASP.Net c# adding items to jagged array and vb.net assign array to jagged array but I just can't seem to work this out...

So, essentially, it's this. I have a function that builds a list of values from a query or two. I'm adding each value returned to a list then converting the list to an array. All is good

However, I now need to return two values, so a multi dimension array appears more suitable. Essentially, this is what I want to do:

        string[][] array2D = new string[2][];
        array2D[0] = new string[3] { "one", "two", "three" };
        array2D[1] = new string[3] { "abc", "def", "ghi" };

All good so far. However, I don't know the values that I want to plug in to the array at the time of array initialisation, so, this is what I'd expect to be able to do:

        string[][] array2D = new string[2][];
        //array2D[0] = new string[3] { "one", "two", "three" };
        //array2D[1] = new string[3] { "abc", "def", "ghi" };

        string[] deviceIDS = { "one", "two", "three" };
        string[] groupIDS = { "abc", "def", "ghi" };

        array2D[0] = new string[deviceIDS.Length] deviceIDS;
        array2D[1] = new string[deviceIDS.Length] groupIDS;

But it really doesn't like the last two lines, report it needs a ;

array2D[0] = deviceIDS; array2D[1] = groupIDS;?

Pikoh
– Pikoh

2017-03-06 10:53:57 +00:00
Commented Mar 6, 2017 at 10:53 — Pikoh
– Pikoh, Commented Mar 6, 2017 at 10:53
remove the variable names at the end of the last two lines.

Sebastian L
– Sebastian L

2017-03-06 10:54:39 +00:00
Commented Mar 6, 2017 at 10:54 — Sebastian L
– Sebastian L, Commented Mar 6, 2017 at 10:54

Roman · Accepted Answer · 2017-03-06 10:59:41Z

2

You have already created arrays here:

string[] deviceIDS = { "one", "two", "three" };
string[] groupIDS = { "abc", "def", "ghi" };

So you only need to set references to these arrays:

array2D[0] = deviceIDS;
array2D[1] = groupIDS;

edited Mar 6, 2017 at 10:59

answered Mar 6, 2017 at 10:54

Roman

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