Finding Mandatory fields

Question

I am trying to list all mandatory fields in a Schema via a custom Core Service project. I don't see that field in the SchemaFieldsData (or probably I am overlooking it).

Is there a way I can determine if a field is configured as mandatory or not?

SchemaFieldsData schemaFieldsData = Client.ReadSchemaFields(txtSchTCMURI, true, null);

Answer 1

To elaborate on Rob's answer, the code to add to yours would be something like:

SchemaFieldsData schemaFieldsData = Client.ReadSchemaFields(txtSchTCMURI, true, null);

foreach (var schemaField in schemaFieldsData.Fields)
{
    bool isMandatory = schemaField.MinOccurs > 0;
    // Do something with isMandatory
}

or perhaps

var mandatoryFields = schemaFieldsData.Fields.Where(field => field.MinOccurs > 0);

Answer 2

I think you need to look at the MinOccurs and MaxOccurs on each field. MinOccurs will be 1 for mandatory fields. Remember the Schema is an XSD.

There's probably a simpler way but I've never done this before.

See here for example of creating the fields: http://docs.sdl.com/LiveContent/content/en-US/SDL%20Web-v1/GUID-5A946CBF-36D3-4D11-BE04-4901F9ED88E3