This week's book giveaway is in the Other Languages forum.
We're giving away four copies of Functional Reactive Programming and have Stephen Blackheath and Anthony Jones on-line!
See this thread for details.
Win a copy of Functional Reactive Programming this week in the Other Languages forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

checkbox

 
sejal joshi
Greenhorn
Posts: 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
hello everybody
on my servlet which generates a html page there r three radio buttons & one submit button
when i click on submit i want to detect which radio button is selected.& calculate
the no of times it is selected.if i am not selecting any option
message should come.pls reply soon.
Sejal
 
ali farid
Ranch Hand
Posts: 60
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi, i cant understand what do meant by "calculate the no of times it is selected "
will you please explain a little more.
 
Sean MacLean
author
Ranch Hand
Posts: 621
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I guessing you mean that you want to have a set of radio buttons and have the value (the number) of the selected radio passed when the form is submitted. If so, here's how to do it.
<FORM METHOD=POST ACTION="http://Some url">
<INPUT TYPE="radio" NAME="myRadios" VALUE="1"> radio1<BR>
<INPUT TYPE="radio" NAME="myRadios" VALUE="2"> radio2<BR>
<INPUT TYPE="radio" NAME="myRadios" VALUE="3"> radio3<BR>
<INPUT TYPE="submit">
</FORM>
Now, because the radio buttons have the same name they will act like radio buttons and not checkboxes (i.e. you will only be able to select one). When one is selected and the form is posted then the name "myRadios" will have the value of the selected radio button (1, 2, or 3 in this case). So if you ask for the value of "myRadios" you will get the value of the one selected. You can set one of them as a default by doing this.
<INPUT TYPE="radio" NAME="myRadios" VALUE="1" CHECKED> radio1<BR>
I hope this helps.
Sean
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic