error not all code paths return a value

Posted by Klbaiju under Regular Expressions on 9/6/2009 | Views : 8558 | Status : [Member] | Replies : 6

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when i try to build this file
this error is showing how to solve this

public Table<ClsCustomer> getcustomers(out string msg)
{
try
{
DataContext Db = new DataContext("Data Source=BAIJU;Initial Catalog=baiju;Integrated Security=True");
Table<ClsCustomer> customer = Db.GetTable<ClsCustomer>();
msg = "Success";
return customer;

}
catch (Exception ex)
{
msg= ex.Message;

}

}

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Posted by: Vuyiswamb on: 9/6/2009 [Member] [MVP] [Administrator] NotApplicable

0	This Simply means that you have declared a Function and a function always return something and at the end you did not return anything. Now this can be simple resloved like this public Table<ClsCustomer> getcustomers(out string msg) { try { DataContext Db = new DataContext("Data Source=BAIJU;Initial Catalog=baiju;Integrated Security=True"); Table<ClsCustomer> customer = Db.GetTable<ClsCustomer>(); msg = "Success"; return customer; } catch (Exception ex) { msg= ex.Message; } return customer; } Thank you for posting at dotnetfunda Vuyiswa Maseko Thank you for posting at Dotnetfunda [Administrator] Klbaiju, if this helps please login to Mark As Answer. \| Alert Moderator

This Simply means that you have declared a Function and a function always return something and at the end you did not return anything. Now this can be simple resloved like this

public Table<ClsCustomer> getcustomers(out string msg)

{

try

{

DataContext Db = new DataContext("Data Source=BAIJU;Initial Catalog=baiju;Integrated Security=True");

Table<ClsCustomer> customer = Db.GetTable<ClsCustomer>();

msg = "Success";

return customer;



}

catch (Exception ex)

{

msg= ex.Message;



}

return customer; 

}

Thank you for posting at dotnetfunda

Vuyiswa Maseko

Thank you for posting at Dotnetfunda
[Administrator]

Klbaiju, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Klbaiju on: 9/7/2009 [Member] Starter

0	no this is not working error is the name customer does not exist in the current context any solution Klbaiju, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Vuyiswamb on: 9/7/2009 [Member] [MVP] [Administrator] NotApplicable

0	Sorry Typo, your Code should look like this public Table<ClsCustomer> getcustomers(out string msg) { Table<ClsCustomer> customer; try { DataContext Db = new DataContext("Data Source=BAIJU;Initial Catalog=baiju;Integrated Security=True"); customer = Db.GetTable<ClsCustomer>(); msg = "Success"; } catch (Exception ex) { msg= ex.Message; } return customer; } Thank you for posting at Dotnetfunda Thank you for posting at Dotnetfunda [Administrator] Klbaiju, if this helps please login to Mark As Answer. \| Alert Moderator

Sorry Typo, your Code should look like this

public Table<ClsCustomer> getcustomers(out string msg)

{

Table<ClsCustomer> customer;



try

{

DataContext Db = new DataContext("Data Source=BAIJU;Initial Catalog=baiju;Integrated Security=True");

customer = Db.GetTable<ClsCustomer>();

msg = "Success";



}

catch (Exception ex)

{

msg= ex.Message;



}

return customer;



}

Thank you for posting at Dotnetfunda

Thank you for posting at Dotnetfunda
[Administrator]

Klbaiju, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Klbaiju on: 9/7/2009 [Member] Starter

0	i tried your code but showing error you didn't return value in try block. i tried both methods Klbaiju, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Rtpharry on: 9/7/2009 [Member] [MVP] Bronze

0	Thats because if the try {} fails then you dont return a customer object. Try putting either return null; or return new Table<ClsCustomer>(); at the end so it looks like this: public Table<ClsCustomer> getcustomers(out string msg) { try { DataContext Db = new DataContext("Data Source=BAIJU;Initial Catalog=baiju;Integrated Security=True"); Table<ClsCustomer> customer = Db.GetTable<ClsCustomer>(); msg = "Success"; return customer; } catch (Exception ex) { msg= ex.Message; } return new Table<ClsCustomer>(); } Klbaiju, if this helps please login to Mark As Answer. \| Alert Moderator

Thats because if the try {} fails then you dont return a customer object.

Try putting either

return null;

return new Table<ClsCustomer>();

at the end so it looks like this:

public Table<ClsCustomer> getcustomers(out string msg)

{

try

{

DataContext Db = new DataContext("Data Source=BAIJU;Initial Catalog=baiju;Integrated Security=True");

Table<ClsCustomer> customer = Db.GetTable<ClsCustomer>();

msg = "Success";

return customer;



}

catch (Exception ex)

{

msg= ex.Message;

}



return new Table<ClsCustomer>();

}

Klbaiju, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Klbaiju on: 9/7/2009 [Member] Starter

0	thanks it is now working Klbaiju, if this helps please login to Mark As Answer. \| Alert Moderator

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