AWS SDK for .NET Documentation
IndexFieldName Property
AmazonAmazon.CloudSearch.ModelDeleteIndexFieldRequestIndexFieldName Did this page help you?   Yes   No    Tell us about it...
The name of the index field your want to remove from the domain's indexing options.

Constraints:

Length
1 - 64
Pattern
[a-z][a-z0-9_]*

Declaration Syntax
C#
public string IndexFieldName { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)