I think that you can use string array...
Second way is to use a struct containing two string values or a class with two string member,,
Look at here:
/// <summary>
/// Using struct
/// </summary>
struct twoStringValue
{
public string s1, s2;
}
public twoStringValue PlayerCards(string player1C1, string player1C2)
{
twoStringValue tsv;
generatedCard = randomCard.Next(1, 52);
tsv.s1 = player1C1 = generatedCard.ToString();
tsv.s1 = player1C1 = player1C1 + ".png";
return tsv;
}
/// <summary>
/// Using a class
/// </summary>
class TwoStringValue
{
public string str1;
public string str2;
}
public TwoStringValue PlayerCards(string player1C1, string player1C2)
{
TwoStringValue tsv;
generatedCard = randomCard.Next(1, 52);
tsv.str1 = player1C1 = generatedCard.ToString();
tsv.str1 = player1C1 = player1C1 + ".png";
return tsv;
}
Good Luck.