landing_page/qdrant-landing/content/documentation/headless/snippets/create-payload-index/lowercase-full-text/csharp.cs

using Qdrant.Client;
using Qdrant.Client.Grpc;

public class Snippet
{
	public static async Task Run()
	{
		var client = new QdrantClient("localhost", 6334);

		await client.CreatePayloadIndexAsync(
		    collectionName: "{collection_name}",
		    fieldName: "name_of_the_field_to_index",
		    schemaType: PayloadSchemaType.Text,
		    indexParams: new PayloadIndexParams
		    {
		        TextIndexParams = new TextIndexParams
		        {
		            Tokenizer = TokenizerType.Word,
		            Lowercase = true,
		        }
		    }
		);
	}
}