Stop a method after error.

Question

Hi Guys,

 

I'm having a trouble in stop or repeating a method after another method is failed...

 

what is my code :-

 

void method1()

{   //code   }

void method2()

{   fetchdata()   }

void method3()

{   fetchdata2()   }

void fetchdata()

{   //code   }

void fetchdata2()

{   //code   }

void button_click()

{   method1();   method2();   method3();   }

 

so my issue is if fetchdata1() returns null then either process repeat itself or stop don't go to method3() and forward.

 

Can anybody help me please.. Thanks