C# 中的 System.Collections.Generic.List`1[System.Char]

Question

I tried to get a value from Excel loaded for Timeout.

I used:

var Timeout = rows[i]["Timeout"].ToString().ToList();

But I'm getting System.Collections.Generic.List 1[System.Char]` instead of the values

Answer 1

You are getting

System.Collections.Generic.List`1[System.Char]

as a result because you are calling ToList() on a string . Calling ToList() on a string will give you each character of the string in form of a List<char> .

My guess is that you are calling this line

var Timeout = rows[i]["Timeout"].ToString().ToList();

inside of a for-loop. In this case I think what you want is getting the Timeout column for reach row. This can be achieved in the following way:

var timeouts = new List<string>();
for(var i = 0; i < rowCount;i++)
{
   timeouts.Add(rows[i]["Timeout"].ToString());
}

Now timeouts will contain the values for the Timeout column for each row.