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Question by MrSplosion · Jan 08, 2012 at 06:20 PM · arraymultidimensional

How to Set a Multidimensional Array Length

I have the following code:

 public int lengthInt;
 public int[, ] data = new int[0, 0];
 
 void Start(){
      data.Length(0) = lengthInt;     //error
      data.Length(1) = lengthInt;     //error
 }

From what I understand you can't just have:

 public int lengthInt;
 public int[, ] data = new int[lengthInt, lengthInt];

You have to define the array length in a runtime function. However if I just had:

 public int lengthInt;
 
 void Start(){
      public int[, ] data = new int[lengthInt, lengthInt];
 }

That would work but then it doesn't show up in the inspector. So how do I set a multidimensional array length and have it visible in the inspector?

Thanks!

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Answer by Simon V · Jan 08, 2012 at 06:25 PM

The problem is that lengthInt == null in your first try. If you assign a value to lengthInt, before you define the array it will work.

Your first example should become:

public static int lengthInt = 0;
public int[, ] data = new int[lengthInt, lengthInt];

The static tag however, will make that your class can only have one instance.

And arrays are never visible in the inspector by the way.

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avatar image MrSplosion · Jan 08, 2012 at 06:34 PM 0
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Still doesn't work I get the following error: "A field initializer cannot reference the nonstatic field, method, or property..."

avatar image Simon V · Jan 08, 2012 at 06:46 PM 0
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Ooh yes, completely forgot that. You have to add the static tag to lengthInt. Will update my answer.

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