Question

有没有办法处理我可以使用下面的代码处理int的双打列表，但不知道如何处理双打数组。

    {
CalculateSumOfList.ServiceReference1.Service1SoapClient client = new CalculateSumOfList.ServiceReference1.Service1SoapClient();
CalculateSumOfList.ServiceReference1.ArrayOfInt arrayOfInt = new CalculateSumOfList.ServiceReference1.ArrayOfInt();
arrayOfInt.AddRange(listDouble); // error here!
string result = client.CalculateSum(arrayOfInt);
label1.Text = Convert.ToString(result);

    }

这是错误的我需要而不是ArrayOfInt才能拥有Double的数组？

客户端：

    namespace CalculateSumOfList
    {
        public partial class Form1 : Form
        {

            List<Double> listDouble = new List<Double>();


            public Form1()
            {
                InitializeComponent();
            }
            private void Form1_Load(object sender, EventArgs e)
            {

            }
            private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
            {

            }

            private void button1_Click(object sender, EventArgs e)
            {

                listDouble.Add(Convert.ToDouble(textBox1.Text));

                textBox1.Clear();
                listBox1.Items.Clear();
                for (int i = 0; i < listDouble.Count; i++)
                {
                    listBox1.Items.Add(listDouble[i]);
                } 

                textBox1.Clear();
                listBox1.Items.Clear();
                for (int i = 0; i < listDouble.Count; i++)
                {
                    listBox1.Items.Add(listDouble[i]);
                }
            }

            private void button2_Click(object sender, EventArgs e)
            {
                CalculateSumOfList.ServiceReference1.Service1SoapClient client = new CalculateSumOfList.ServiceReference1.Service1SoapClient();
                CalculateSumOfList.ServiceReference1.ArrayOfInt arrayOfInt = new CalculateSumOfList.ServiceReference1.ArrayOfInt();
                arrayOfInt.AddRange(listDouble); // error here!
string result = client.CalculateSum(arrayOfInt);
label1.Text = Convert.ToString(result);



            }



        }
    }

网络方法：

namespace CalculateWebServiceSum
{
    /// <summary>
    /// Summary description for Service1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
    // [System.Web.Script.Services.ScriptService]
    public class Service1 : System.Web.Services.WebService
    {

        [WebMethod]


        public string CalculateSum(List<double> listDouble)
        {
            return listDouble.Sum().ToString();



        }
    }
}

Answer 1

如果我理解你的问题，你需要在添加listOfDecimal之前调用ConvertAll到十进制类型。

var convertedDecimalList = arrayOfInt.ConvertAll<decimal>
    (element => (decimal)element);
convertedDecimalList.AddRange(listDecimal);

更新：

CalculateSumOfList.ServiceReference1.Service1SoapClient client = 
    new CalculateSumOfList.ServiceReference1.Service1SoapClient();
CalculateSumOfList.ServiceReference1.ArrayOfInt arrayOfInt = 
    new CalculateSumOfList.ServiceReference1.ArrayOfInt();
var listOfIntAsDouble = arrayOfInt.ConvertAll(x=>Convert.ToDouble(x));
listOfIntAsDouble .AddRange(listDouble);
string result = client.CalculateSum(listOfIntAsDouble);
label1.Text = Convert.ToString(result);

Answer 2

我不清楚你的问题是什么，但是：

如果arrayOfInt.AddRange( listOfDouble )未编译，您可以使用Linq并执行

arrayOfInt.AddRange( listOfDouble.Select( d => (int)d ).ToList() );

方法client.CalculateSum需要类型为List<double>

的参数

1）如果可能，我会更改public string CalculateSum(IEnumerable<double> items)更灵活

2）如上所述，您可以使用list.Select(n => (double)n).ToList()转换任何可转换类型的列表，假设(double)n是有效演员。

列表来处理双打数组

2 个答案: