如何从c#返回string Kusto查询结果

using Microsoft.Azure.Kusto.Data;
using System;

public class KustoQueryExecutor
{
    public static string ExecuteQueryAndGetResult(string query)
    {
        // 构建连接字符串
        var kustoConnectionStringBuilder = new KustoConnectionStringBuilder("https://kustoclustername.kusto.windows.net", "kustodatabasename");
        kustoConnectionStringBuilder.WithAadApplicationKeyAuthentication("aadClientId", "aadClientSecret", "aadAuthorityId");

        try
        {
            // 创建KustoClient实例
            using (var kustoClient = KustoClientFactory.CreateCslQueryProvider(kustoConnectionStringBuilder))
            {
                // 执行查询
                using (var reader = kustoClient.ExecuteQuery(query))
                {
                    string result = string.Empty;

                    // 读取查询结果
                    while (reader.Read())
                    {
                        // 假设结果只有一列，并且是string类型
                        result = reader.GetString(0);
                    }

                    return result;
                }
            }
        }
        catch (Exception ex)
        {
            // 处理异常
            Console.WriteLine("Error occurred: " + ex.Message);
            return string.Empty;
        }
    }
}