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Unassigned Local Variable

iswarya chandran

Is it possible to check the unassigned local variable with if condition??

for eg;

string name;

try
{
name= (string)Session["user"];
}
catch {}

if(name==null)
{
//code we want

}

5 Replies

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iswarya chandran13y ago
yeah.. thank you sir..
0
Iftikar Hussain13y ago
try like this

string Name;
if(Session["user"]!=null)
{
name=(string)Session["user"];
}

else
{
//your code
}

or

object Name=Session["user"];
if(Name==null)
{
//your code
}

Regards,
Iftikar
0
iswarya chandran13y ago
@Sanjeeb sir..

if i give like this i got an compilation error in if condition variable.. as checking unassigned local variable
0
Vulpes13y ago
You can also do it like this:

string name = Session["user"] as string;

if(name == null)
{
//code we want
}
0
Iftikar Hussain13y ago
yes, but I think you want to check session value. Try like this

string Name;
if(Session["user"]!=null)
{
name=(string)Session["user"];
}

Regards,
Iftikar
0