Maximum number of if statement within a method

Hi

May I know any limit of if statement within a method? for example as below..

if (a==1) {return 1;}

if (a==2) {return 2;}

if (a==3) {return 3;}

if (a==4) {return 4;}

if (a==5) {return 5;}

if (a==6) {return 6;}

if (a==7) {return 7;}

....

if (a==n) {return n;}

If I have 26,000 if, w3wp.exe will crash. Any ideas?

Thank you