Good Day
i have two functions which are the same but behave differently
```
public async static Task Retrieve_Token()
{
TOKEN_MODEL token = null ;
try { try { token = await BlobCache.LocalMachine.GetObject<TOKEN_MODEL>("TOKEN1"); } catch (KeyNotFoundException) { } } catch (Exception ex) { if (ex.Message == "Sequence contains no elements.") { return null; } else { return null; } } return token; }
public async static Task RetrieveUserInfo()
{
USERS_Model Userinfo = null;
try
{
try
{
Userinfo =await BlobCache.LocalMachine.GetObject("USERDAT");
}
catch (KeyNotFoundException)
{
}
}
catch (KeyNotFoundException ex)
{
if (ex.Message == "Sequence contains no elements.")
{
return null;
}
else
{
return null;
}
}
return Userinfo;
}
```
and i am calling these two function in App.cs like this
TOKEN_MODEL token_model = await GenericMethods.Retrieve_Token();
and if there is no value , it will return Null and assign the object "token_model " with null which is ok
and the second one which is a problem
USERS_Model userinfo= await GenericMethods.RetrieveUserInfo();
The above line directly jumps to my exception handling code section instead of also assigning the object "userinfo" with null with an exception
System.InvalidOperationException: Sequence contains no elements.
Thanks
Good Day
Thanks for the reply . i changed my code to this
public async static Task<TOKEN_MODEL> Retrieve_Token() { TOKEN_MODEL Userinfo = new TOKEN_MODEL(); try { try { Userinfo = await BlobCache.LocalMachine.GetObject<TOKEN_MODEL>("USERDAT"); } catch (KeyNotFoundException) { } } catch (Exception ) { } return Userinfo; }
and
public static void Store_Token(TOKEN_MODEL Token) { try { BlobCache.LocalMachine.InsertObject("USERDAT", Token); } catch (KeyNotFoundException) { } }
My other issue was logical errors , So i had to do database logging to find the problem code. and i finally found it.
Answers
The methods are not the same.
The first uses the generic GetObject<> the other doesn't, and they are fetching different types of data. Maybe the data for the second method doesn't exist?
Good Day
Thanks for the reply . i changed my code to this
and
My other issue was logical errors , So i had to do database logging to find the problem code. and i finally found it.