Why can't I use uint for the inspector?

Questions & Answers
1

Basically when I make a public variable in a class of MonoBehaviour an unsigned integer in C# the Inspector does not add them. They work fine though, the code compiles and runs normally. I just can’t let the designer edit them. Changing them to integers or floats makes them pop up in the Inspector.

Is this a bug? Can I work around it?

Here’s a code example if you so dearly desire. Tile Size will show up, Width and Height won’t.

public uint m_Width = 50, m_Height = 50;
public float m_TileSize = 1.0f;
2

It is not a bug. They just haven’t been implemented in the inspector code. Long does show up on the inspector, so if you really really require only positive, huge, integer values, you can use a long and then use the OnValidate method to check for negative values, or the Range attribute.

3

Unity’s built-in serialization doesn’t handle uints, which is a bit of a bummer.

If you really need a workaround, check these other two threads:

You can write your own editor script to clamp or otherwise manage values. You can ultimately serialize an array of bytes, if you’re really set on using uints.

4

Running Unity 5.5.0f3, I can confirm that Unity now supports the display of uint types in the inspector.