How to provide custom string placeholder for string format

Question

I have a string

string str =\"Enter {0} patient name\";

I am using string.format to format it.

String.Format(str, \"Hello\         


        

Answer 1

I wanted something that worked more like Python's string formatting, so I wrote this: https://gist.github.com/samwyse/b225b32ae1aea6fb27ad9c966b9ca90b

Use it like this:

Dim template = New FormatFromDictionary("{cat} vs {dog}")
Dim d = New Dictionary(Of String, Object) From {
    {"cat", "Felix"}, {"dog", "Rex"}}
Console.WriteLine(template.Replace(d)) ' Felix vs Rex

Answer 2

I saw all the answers above, yet, couldn't get the question right :)

Is there any particular reason why the following code does not meet your requirement?

string myFirstStr = GetMyFirstStrFromSomewhere();
string mySecondStr = GetMySecondStrFromSomewhere();

string result = "Enter " + myFirstStr + " " + mySecondStr + " name";