Is it possible to include a C# variable in a string variable without using a concatenator?

Question

Does .NET 3.5 C# allow us to include a variable within a string variable without having to use the + concatenator (or string.Format(), for that matter).

For example (In

Answer 1

No, But you can create an extension method on the string instance to make the typing shorter.

string s = "The date is {0}".Format(d);

Answer 2

No, it doesn't. There are ways around this, but they defeat the purpose. Easiest thing for your example is

Console.WriteLine("The date is {0}", DateTime.Now);

Answer 3

How about using the T4 templating engine?

http://visualstudiomagazine.com/articles/2009/05/01/visual-studios-t4-code-generation.aspx

Answer 4

you can use something like this as mentioned in C# documentation. string interpolation

string name = "Horace";
int age = 34;
Console.WriteLine($"He asked, \"Is your name {name}?\", but didn't wait for a reply :-{{");
Console.WriteLine($"{name} is {age} year{(age == 1 ? "" : "s")} old.");

Answer 5

The short and simple answer is: No!

Answer 6

If you are just trying to avoid concatenation of immutable strings, what you're looking for is StringBuilder.

Usage:

string parameterName = "Example";
int parameterValue = 1;
Stringbuilder builder = new StringBuilder();
builder.Append("The output parameter ");
builder.Append(parameterName);
builder.Append("'s value is ");
builder.Append(parameterValue.ToString());
string totalExample = builder.ToString();