不能隐式将类型字符串转换为字符串[]？ [英] Cannot implicitly convert type string to string[] ?

问题描述

ShadingAnalysisDataSetTableAdapters.tbl_CadEngineersTeamTableAdapter cd;

cd = new ShadingAnalysisDataSetTableAdapters.tbl_CadEngineersTeamTableAdapter();

DataTable dt2 = new DataTable();

dt2 = cd.GetAssignTeam(x);

object a = cd.GetAssignTeam(x);

string[] b = a.ToString(); // error popup here

推荐答案

代码

Hi,

In the code

string[] b = a.ToString();

您正在为字符串对象分配数组。你必须为它分配一个字符串数组类型对象。



字符串是String类型的对象，其值为text。在内部，文本存储为Char对象的顺序只读集合。

虽然字符串数组是字符串的集合。因此，您不能指定那种方式。



尝试将对象转换为字符串数组，然后将其分配给数组。



例如在你的代码中尝试：

you are assigning a string object to array. You will have to assign a string array type object to it.

A string is an object of type String whose value is text. Internally, the text is stored as a sequential read-only collection of Char objects.
While a string array is a collection of strings. Hence, you cannot assign that way.

Try converting a object to string array and then assigning it to the array.

For e.g in your code try:

string[] b = ((System.Collections.IEnumerable)a).Cast<object>().Select(x => x.ToString()).ToArray();

希望这会有所帮助!! :)



问候，

Praneet

Hope this helps !! :)

Regards,
Praneet

你好，

.ToString（）返回单个字符串而不是字符串数组。所以在执行前检查你的代码。

Hello ,
.ToString() retuns single string rather than string array . so check your code before execution .

每个数组都实现了IEnumerable。你可以在这里使用这个功能。



试试这个代码

Hi,

Every array implements IEnumerable. You can use that functionality here.

Try this code

string[] b = ((IEnumerable)obj).Cast<object>()                               .Select(x => x.ToString()).ToArray();

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