CODEWITHSUNDEEP
c#asp.net
Sora
Sora

Reputation: 2551

an issue when trying to call a function that have an out parameter

I have a function like this :

example(long a,long b,string c,DateTime d,DateTime e,out decimal f)

when i am trying to call it i am doing this :

long a =1;
long b=2;
string c="";
DateTime d=DateTime.Now;
DateTime e=DateTime.Now;
decimal f=0;

example(a,b,c,d,e,f) --> Here is giving me the error : the best overloaded method has some invalid argument

can you please help me fix this problem

Upvotes: 1

Views: 52

Answers (4)

Tim Schmelter
Tim Schmelter

Reputation: 460228

Since d is an out parameter you need the out keyword (in C#):

example(a, b, c, d, e, out f)

Upvotes: 1

Soner Gönül
Soner Gönül

Reputation: 98830

You should use out keyword also when you calling your method like;

example(a,b,c,d,e, out f);

From MSDN;

The out keyword causes arguments to be passed by reference. This is like the ref keyword, except that ref requires that the variable be initialized before it is passed. To use an out parameter, both the method definition and the calling method must explicitly use the out keyword.

Upvotes: 0

lc.
lc.

Reputation: 116528

You need to use the out keyword in your method call as well:

example(a, b, c, d, e, out f);

See also: out parameter modifier (C# Reference)

Upvotes: 0

Henk Holterman
Henk Holterman

Reputation: 273524

You need to call example(a,b,c,d,e, out f);

And there is no need to initialize f, and it is better not to do so (it's misleading):

//decimal f=0;
decimal f;

Upvotes: 3

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