CosmosDB C# SDK中不区分大小写的字符串搜索

using Microsoft.Azure.Cosmos;
using System.Linq;

// 创建CosmosDB客户端
string connectionString = "your_connection_string";
CosmosClient cosmosClient = new CosmosClient(connectionString);

// 获取数据库和容器的引用
Database database = cosmosClient.GetDatabase("your_database_id");
Container container = database.GetContainer("your_container_id");

// 构造查询条件
string searchString = "your_search_string";
IQueryable<Item> query = container.GetItemLinqQueryable<Item>()
                        .Where(item => item.Name.ToLower().Contains(searchString.ToLower()));

// 执行查询
FeedIterator<Item> feedIterator = query.ToFeedIterator();
while (feedIterator.HasMoreResults)
{
    FeedResponse<Item> response = await feedIterator.ReadNextAsync();
    foreach (Item item in response)
    {
        // 处理查询结果
        Console.WriteLine(item);
    }
}