添加值到列表 [英] Adding values to List

问题描述

下面是我的代码，

List<float?> LValues= new List<float?>();
List<float?> IValues= new List<float?>();
List<float?> BValues= new List<float?>();
List<object> data = new List<object>();

float? Value_Likelihood_fromList = 0;
float? Value_Impact_fromList = 0;
float? Value_Bubblesize_fromList = 0;

foreach (var item in Read_xml_for_childobjects_id.Root.Descendants("object"))
  {
    for (int k = 0; k < 7; k++)
    {
        Value_LValues_fromList = LValues.ElementAt(k);
        Value_IValues_fromList = IValues.ElementAt(k);
        Value_BValues_fromList = BValues.ElementAt(k);
        data.Add(new Data { x = Value_LValues_fromList, y = Value_IValues_fromList, z = Value_BValues_fromList });
        //  data.Add(data_content);
    } 
}

在这里，我的列表包含在每个28值喜欢

Here, my list contains 28 values in each like

LValues=[a1,a2,a3,a4....a28],
IValues=[b1,b2,b3...b28],
BValues=[c1,c2,c3...c28]

和我的数据列表越来越形式，

and my data list is getting in the form,

data=[[a1,b1,c2],[a2,b2,c2],[a3,b3,c3].....[a28,b28,c28]]

但我希望得到四个不同的数据列表如下：

but I want to get four different data list as follows

data=[[a1,b1,c1],[a2,b2,c2]....[a7,b7,c7]],
data=[[a8,b8,c8],[a9,b9,c9]....[a14,b14,c14]],
data=[[a15,b15,c15],[a16,b16,c16]....[a21,b21,c21]],
data=[[a22,b22,c22],[a23,b23,c23]....[a28,b28,c28]],

我知道它非常愚蠢的我问这个逻辑问题，但我现在面临真正的麻烦要做到这一点，任何帮助将不胜感激。

I know its very stupid of me to ask this logic question but I am facing real trouble to do this,any help will be greatly appreciated..

请注意，我通过阅读XML字符串填充列表

PLease note,I am populating the list by reading the xml string

有关参考下面是我如何得到列表值，这是唯一一个名单，我做对于另外两个同样的方式为好，

for reference below is how I get values in list,this is for only one list,I do in same manner for other two as well,

for (int j = 0; j < value_BeforeOffset_l.Count; j++)
{
    var xmlAttributeCollection_for_period_BeforeOffset_L = value_BeforeOffset_l[j].Attributes;
    if (xmlAttributeCollection_for_period_BeforeOffset_L != null)
    {
        if (i == 0 && s == 0)
        {
            var periodid = xmlAttributeCollection_for_period_BeforeOffset_L["periodid"];
            xmlActions_Value_BeforeOffset_L[j] = periodid.Value;
            period_final_id = periodid.Value;
            try
            {
                period_name = ServiceClient.GetAttributeAsString(sessionId, periodid.Value, "name", "");
                if (period_Name.Count() <= 7)
                {
                    period_Name.Add(period_name);
                }
            }
            catch (Exception ex)
            {
                ErrorValue = "Error found...Kindly Check Logs";
                logger.ErrorException("QPR Web Service ERROR", ex);
                return ErrorValue;
            }
        }
        if (s == 0)
        {
            try
            {
                var action = xmlAttributeCollection_for_period_BeforeOffset_L["value"];  
                period_final_value = float.Parse(action.Value);
                LValues.Add(period_final_value);     
            }
            catch (Exception ex1)
            {
                LValues.Add(null);
            }
        }
    }                         
}

- -------更新问题-----

--------Updated Question-----

foreach (var item in Read_xml_for_childobjects_id.Root.Descendants("object"))
  {
  for (int k = 0; k < 7; k++)
    {
        Value_LValues_fromList = LValues.ElementAt(k);
        Value_IValues_fromList = IValues.ElementAt(k);
        Value_BValues_fromList = BValues.ElementAt(k);
        data.Add(new Data { x = Value_LValues_fromList, y = Value_IValues_fromList, z = Value_BValues_fromList });
        //  data.Add(data_content);
    } 
  }

有在Read_xml_for_childobjects_id 4项，所以如果我需要要利用以下语句，

There are 4 items in Read_xml_for_childobjects_id, so if I need to make use of Following stmt,

  data[i] = new List<Data>();   // first initialize this List instance

据亨克holtermen回答那该怎么做..？ ？

According to Henk holtermen answer then how to do that..???

推荐答案

最基本的做法：

//List<object> data = new List<object>();
List<Data>[] data = new List<Data>[4];    // why use <object> here ?

//...

for(int i=0;i<4;i++)
{
    data[i] = new List<Data>();  // first initialize this List instance 
    for (int k = 0; k < 7; k++)
        //... your current code
}

这篇关于添加值到列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！