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Question by Doeko · Jul 30, 2013 at 02:26 PM · c#arraysserializationreflection

Cannot convert object[] to Vector3[]

I have the following situation. The method I am using works fine with singular values, but it does not work for (any) arrays. My question is how do I get this to work for arrays? Please see attached screenshot that verifies the type is congruent with the type that the field is looking for.

The full error: ArgumentException: Object type System.Object[] cannot be converted to target type: UnityEngine.Vector3[] Parameter name: val

For completeness, "info" is of type FieldInfo

alt text

objectarray.jpg (82.0 kB)
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avatar image Seth-Bergman · Jul 30, 2013 at 06:25 PM 0
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basically, you need to typecast the array (like by cycling through each element and copying individually).. the Vector3 is being stored as an "object". if you post the code, I can help explain further...

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Answer by Doeko · Jul 30, 2013 at 02:25 PM

I have found the following related problem and answer: http://stackoverflow.com/questions/13790527/c-sharp-fieldinfo-setvalue-with-an-array-parameter-and-arbitrary-element-type

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Answer by hoy_smallfry · Jul 30, 2013 at 07:10 PM

you can probably use the Linq extension method Select to help with this:

 // up at the top with others
 using System.Linq;

 //code in-between...

 var vector3Array = o.Select(element => element as Vector3).ToArray();
 info.SetValue(component, vector3Array);
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avatar image vladibo · Aug 20, 2013 at 11:55 PM 0
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.ToArray() won't work for iPhone though

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