Changes

Your code is referencing a [[Modding:Modder Guide/Game Fundamentals#Net fields|net field]], which can cause subtle bugs. You should access the underlying value instead:

Your code is referencing a [[Modding:Modder Guide/Game Fundamentals#Net fields|net field]], which can cause subtle bugs. You should access the underlying value instead:

<ul>

<ul>

<li>For a reference type (i.e. one that can contain <samp>null</samp>), you can use the <samp>.Value</samp> property (or <samp>.FieldDict</samp> for a <samp>NetDictionary</samp>):

<li>For a reference type (''i.e.,'' one that can contain <samp>null</samp>), you can use the <samp>.Value</samp> property (or <samp>.FieldDict</samp> for a <samp>NetDictionary</samp>):

<syntaxhighlight lang="c#">

<syntaxhighlight lang="c#">

if (building.indoors.Value == null)

if (building.indoors.Value == null)

   // ...

   // ...

</syntaxhighlight></li>

</syntaxhighlight></li>

<li>For a value type (i.e. one that can't contain <samp>null</samp>), check if the parent is null (if needed) and compare with <samp>.Value</samp>:

<li>For a value type (''i.e.,'' one that can't contain <samp>null</samp>), check if the parent is null (if needed) and compare with <samp>.Value</samp>:

<syntaxhighlight lang="c#">

<syntaxhighlight lang="c#">

if (item != null && item.category.Value == 0)

if (item != null && item.category.Value == 0)