How to prevent creating(programmatically) item without setting values in required fields

Question

I have list event receiver which creates item in another list.

Code:

newItem[fieldName1] = cellItem1;
newItem[fieldName2] = cellItem2;
newItem.Update();

The problem is that if any required field is not specified by me, the element will be saved. For example: if the "Title" field is required, but I don't specify newItem["Title"] = cellItem1 - it will still be saved.

I need to prevent this - If a list has required fields and I do not specify their values - Item should not be created.

Yes I can get all list fields and create additional check - If (list.fields[field].Required)..... but may be there are other ways to achieve this?

Answer 1

After research I can write that there are no OOTB settings to achieve this.

So the simpliest solution is to add the following check:

foreach (SPField f in properties.ListItem.Fields)
{
   if (!f.ReadOnlyField && f.Required && properties.AfterProperties[f.InternalName] == null)
    {
      //cancel adding item
    }
}