Insert a string in a string

Question

//Laver Array Liste
ArrayList Fields123 = new ArrayList();
Fields123.Add("12345");
Fields123.Add("67890");
Fields123.Add("09876");
Fields123.Add("54321");
Fields123.Add("12345");

//Som Variable
foreach (string tbOldField in Fields123)
{
    number = number + 1;

    string field + number = tbOldField;   
}

Dont know the syntax in C#. My problem is that I need the string field to be like:

String field1
String field2
String field3
String field4
String field5

but dont know how to get the "number" in so its is field(number).

Don't use ArrayList anymore. It belongs the old days when C# doesn't have Generics. You can use List<T> instead. In your case, Dictionary could be better.. — Soner Gönül
– Soner Gönül, Commented Aug 28, 2014 at 11:28
Not clear on what exactly you are asking. What output are you expecting? An array of key value pairs like "field1": 12345 and "field2": 67890? Is the field1 a variable name/key or is it simply a corresponding value? — Lotok
– Lotok, Commented Aug 28, 2014 at 11:37

Selman Genç · Accepted Answer · 2014-08-28 11:33:32Z

2

Firstly do not use weakly typed ArrayList use type-safe generic collections such as List<T>.

Secondly, you can't construct a variable name by concatenating other variables like that.What you need is a Dictionary<string, string>

List<string> Fields123 = new List<string>();
Fields123.Add("12345");
Fields123.Add("67890");
Fields123.Add("09876");
Fields123.Add("54321");
Fields123.Add("12345");

Dictionary<string, string> values = new Dictionary<string, string>();
int number = 1;
foreach (string tbOldField in Fields123)
{
    values.Add("field" + number++, tbOldField);
}

Then you can get the values by using the corresponding key, for example: values["field1"]

edited Aug 28, 2014 at 11:33

answered Aug 28, 2014 at 11:27

Selman Genç

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1 Comment

Lotok Over a year ago

Depending on what the values are being used for, it may be more appropriate to use Tuples rather than KVPs

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