Stop a method after error.

void method1()

void method2(){ fetchdata(); }

void method3(){ fetchdata2(); }

void method4(){ fetchdata3(); }

void fetchdata() { if(data == null) {go to method1 or stop from executing method2}}

void fetchdata2() { if(data2 == null) {go to method2 or stop from executing method3}}

void fetchdata3() { if(data3 == null) {go to method3 or stop from executing method4}}

void button_click()

{ method1(); method2(); method3(); method4(); }

 

 

How to do this :- go to previous method or stop from executing next method

Hi try this

 

 

public void button_click()
{
start:
bool a;

a=fetchdata();

if (a == true)// if return something then execute
{
method3();

}
else
{
goto start;
}


} 

I want to execute method 2 where it is redirected to fetchdata which returns a value then method3 should me executed else goto method 2 again.