C# taking arguments & declaring at runtime from text file

Question

I have a text file with the following:

int A = 5 ;
string str = "tempstring" ;
str DosomeMethod 15 16 20 22 ;

When reading the text file thru my program, I want to declare int A = 5 & string str = "tempstring" at runtime.

It can be like

string[] st = freader.readline().split(' ');
if (st[0]=="int")
    {
      str[0] str[1] = str[4];
    }

I know that the above is the wrong syntax but I want to do something like this with some reference.

Can anybody help without using irony .net?

you can accomplish this sort of feature using Expression Trees — Glenn Ferrie
– Glenn Ferrie, Commented Jul 15, 2012 at 11:31
What about using dynamic? msdn.microsoft.com/en-us/library/dd264736.aspx — Dor Cohen
– Dor Cohen, Commented Jul 15, 2012 at 11:32
As others have said, what you're asking for is pretty advanced stuff. Perhaps explain why you're trying to do this - there may be a better approach. — Nik
– Nik, Commented Jul 15, 2012 at 11:48
I am developing prorgamme for a machine which will work with PLC. Now my application is interacting with PLC & should call around 130 text files as instructions into programme at runtime based upon decision made by PLC. writing 130-150 individual functions are difficult. — user1526791
– user1526791, Commented Jul 15, 2012 at 11:56

Mark Segal · Accepted Answer · 2012-07-15 11:46:19Z

0

This is relatively advanced material.
You can't really do as you said. C# is a strongly-typed language.
Although, you may seek to one of these solutions:

IronPython - a script language which uses .NET.
C#'s dynamic keyword.
Reflection
Dynamically compiling C# code within application
Or, if you seek a quick solution, you may set these variables (string temp and so on) within your code, then put values into them according to the string.

answered Jul 15, 2012 at 11:46

Mark Segal

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