如何在C＃中将字典值添加到列表

问题描述

int column = 43;
foreach (DataRow row in dt.Rows)
       {
   var dict = JsonConvert.DeserializeObject<Dictionary<string, string>>(row["farm_detailsdata"].ToString());

           string str = string.Empty;

                 foreach (var data in dict)
                     {
                  columni++;
          worksheet.Cells[2, columnindex].Value = data.Key;
                      }
            }

从上面如何使用列表添加dicationary值



这里下面这行字典值是

from the above how to add dicationary values using list

here in this below line dictionary value is there

foreach (var data in dict)

如何添加字典值列表在c＃



从我上面如何将字典值添加到c列表中＃



我尝试过：

how to add dictionary value to list in c#

from my above how to add dictionary value to list in c#

What I have tried:

int column = 43;
foreach (DataRow row in dt.Rows)
       {
   var dict = JsonConvert.DeserializeObject<Dictionary<string, string>>(row["farm_detailsdata"].ToString());

           string str = string.Empty;

                 foreach (var data in dict)
                     {
                  columni++;
          worksheet.Cells[2, columnindex].Value = data.Key;
                      }
            }

从上面如何使用列表添加dicationary值



这里下面这行字典值是

from the above how to add dicationary values using list

here in this below line dictionary value is there

foreach (var data in dict)

如何添加字典值列表在c＃



从我上面如何将字典值添加到c＃

how to add dictionary value to list in c#

from my above how to add dictionary value to list in c#

推荐答案

Dictionary<int, string> dict = new Dictionary<int, string>();
dict.Add(1, "A");
dict.Add(2, "B");
dict.Add(3, "C");
dict.Add(4, "D");
dict.Add(5, "E");

List<string> lst = new List<string>();
lst.AddRange(dict.Values); //here!

您可以使用 []也将字典对象转换为列表：

You can use Dictionary.ToList(TSource) Method (IEnumerable(TSource)) (System.Linq)[^] too to "convert" dictionary object into list:

List<KeyValuePair<int, string>> lst = dict.ToList();

仅限值：

For values only:

List<string> lst = dict.Values.ToList();

详情请见：

[]

[]

[]

For further details, pleas see:
List(T) Class (System.Collections.Generic)[^]
Dictionary(TKey, TValue) Class (System.Collections.Generic)[^]
KeyValuePair(TKey, TValue) Structure (System.Collections.Generic)[^]

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