out parameters

[mike parr]

I've been using out parameters to return more than 1 value from my
functions. But how do you return a variable that you have passed to the
function originally? The code below doesn't work, do I just change the
name of the variable I am passing back, or is there some clever way to
do this in C#?

private DBResult Change_CC_State(out int intNewStatus, int intNewStatus)
{
//do stuff to intNewStatus before returning
}

Thanks,

Mike

 

[Hans Kesting]

I've been using out parameters to return more than 1 value from my
functions. But how do you return a variable that you have passed to the
function originally? The code below doesn't work, do I just change the
name of the variable I am passing back, or is there some clever way to
do this in C#?

private DBResult Change_CC_State(out int intNewStatus, int intNewStatus)
{
//do stuff to intNewStatus before returning
}

Thanks,

Mike

use this:

private DBResult Change_CC_State(ref int intNewStatus)

(see the "ref") then you can transport values both ways.


Hans Kesting

 

[Kevin C]

Use "ref" instead. "out" says that the function will supply the variable.

 

[William Ryan eMVP]

The error is the duplicate parameter name.

As far as getting the values. You can just pass in the variable if it's a
reference type or you can pass a value type by ref. "mike parr"