if nested

Hey,
If you simply want to return null for false then instead of using second if, just replace it by null.

I need the second if too.

hema.mathivathanan said:

I need the second if too.

But that's not what you said in your description.

yes, adding to that When the second if condition is true I want null and when false "must be numerical and no more than 12 numbers" should be displayed.
The problem with the above coding is, the second if is working as expected. But when the first if statement returns false, it's displaying "must be numerical and no more than  12 numbers" which  shouldn't. 
Hope I explained the problem clearly

hema.mathivathanan said:

The problem with the above coding is, the second if is working as expected. But when the first if statement returns false

This is not possible.  As I explained earlier, the second if() only ever executes when the top-level if() evaluates to FALSE.

I suggest you review and get more familiar with the precedence in which nested if() statements execute.  Namely, that they execute stricly in order from the top-most level, and any nested expressions will only ever be evaluated when the parent condition evaluates in such a way as to call that particular child path (i.e. either the "true" path or the "false" path).

hema.mathivathanan said:

The problem with the above coding is, the second if is working as expected. But when the first if statement returns false

This is not possible.  As I explained earlier, the second if() only ever executes when the top-level if() evaluates to FALSE.

I suggest you review and get more familiar with the precedence in which nested if() statements execute.  Namely, that they execute stricly in order from the top-most level, and any nested expressions will only ever be evaluated when the parent condition evaluates in such a way as to call that particular child path (i.e. either the "true" path or the "false" path).