AddTheSequenceNumberToALinqQuery

example1.cs

var lines = new[]
{
     "Line A",
     "Line B",
     "Line C"
};

var dict = new Dictionary<string, string>();

for(int i=0; i <= lines.GetUpperBound(0); i++)
{
     dict.Add(string.Format("Address {0}", i), lines[i]);
}

foreach (var dictionary in dict)
{
     Console.WriteLine("{0} : {1} ",dictionary.Key, dictionary.Value);
}

example2.cs

Key: Address 0 - Value: Line A
Key: Address 1 - Value: Line B
Key: Address 2 - Value: Line C

example3.cs

var lines = new[]
{
     "Line A",
     "Line B",
     "Line C"
};

var query = lines.Select(line => new
{
     Prop = string.Format("Address {0}", line.Count()),
     Value = line
});

foreach (var prop in query)
{
     Console.WriteLine("Prop: {0} - Value: {1} ",prop.Prop, prop.Value);
}

example4.cs

Prop: Address 6 - Value: Line A
Prop: Address 6 - Value: Line B
Prop: Address 6 - Value: Line C

example5.cs

var lines = new[]
{
     "Line A",
     "Line B",
     "Line C"
};

var query = lines.Select((line, index) =>; new
{
     Prop = string.Format("Address {0}", index),
     Value = line
});

foreach (var prop in query)
{
     Console.WriteLine("Prop: {0} - Value: {1} ",prop.Prop, prop.Value);
}

example6.cs

Prop: Address 0 - Value: Line A
Prop: Address 1 - Value: Line B
Prop: Address 2 - Value: Line C