set asp session with javascript

[flakfiser]

how can i do this exactly

here is part of my code that i have already

<% if session("colorbw") = "color" then %>
<input name="color" type="radio" value="color" onClick="MM_setSession"
checked>Color<br>
<input name="color" type="radio" value="bw" onClick="MM_setSession
>Black &amp; White
<% else %>
<input name="color" type="radio" value="color" onClick="MM_setSession
>Color<br>
<input name="color" type="radio" value="bw" onClick="MM_setSession"
checked>Black &amp; White
<% end if %>

basically, i have a session variable called colorbw, and on this page, i
need the user to check a radio button for either color or black and white
reports. now, submitting the form is not an option, but maybe a postback
will work, or something else. i guess i need to know the javascript
function to do this please. colorbw by default = color.

[flakfiser]

i do understand this. but i know there is a way to do this, probably via a postback, but i don't know how to write the script and html to do this. or, if there is another way to have radio buttons, and once one is clicked, a session variable is set. i just thought javascript would handle this best, and then postback to set the session, because i can't do a form submit on this particular page.

[flakfiser]

well, how ever it can be done.

when someone clicks on a radio button, i need to do something to set a session variable with the value they clicked on. i can't submit the form though, unless it submits back to itself i guess maybe?

[flakfiser]

ok great, that reloads the page. now i know how to do that.

now, on to part 2, how to i have 2 choices, lets say BlackWhite and Color, and have it set the session variable accordingly, and retain the chosen checked box when page is reloaded.

[AndyR]

If your posting to the same page, you can try this:

<input type="radio" name="mycolor" <% if request.form("mycolor") ="White" then response.write "Checked "%> value="White">

I am pretty sure it is "Checked" with radio buttons, but it might be "Selected".

HTH

AndyR

[flakfiser]

ok, here is the exact code as i have it now, it sort of works, but only keeps BW checked, doesn't keep color checked if i click on it. also, how do i set the session then after it's clicked?

<input type="radio" name="mycolor" <% if request.form("mycolor") ="color" then response.write "Checked "%> value="Color" onClick="
if (this.checked) {
this.form.action=self.location.href;
this.form.submit();
}
return true;">
Color
<br>
<input type="radio" name="mycolor" <% if request.form("mycolor") ="bw" then response.write "Checked "%> value="bw" onClick="
if (this.checked) {
this.form.action=self.location.href;
this.form.submit();
}
return true;">
Black &amp; White

[AndyR]

To set the session variable, you can put a line like this on the top of your page:

<%

if request.form > "" then 'checks if the form is posted
session("mycolor")=request.form("mycolor")
end if

%>


As for why the black and white is working, the value in thecolor input tag is "Color" and in the IF statement its being compared it to "color". "Color" <> "color". That might bt it. Its usually something annoying like that.

HTH

AndyR

[flakfiser]

ok, i'm not following what u mean why color won't stay checked, but it does in fact change the session variable now between Color and BW - which is most important.

maybe u can explain to me a different way why i can't keep color checked. if i select color, form submits, and neither color or BW is checked. but mycolor session is set to color.

[AndyR]

Sorry for the confusion. I'll try another way...

Here is the code for the color input:

<input type="radio" name="mycolor" <% if request.form("mycolor") ="color" then response.write "Checked "%> value="Color"

Notice that the value being assigned value="Color" starts with a upper case "C". Then in the ASP If statement it compares it to "color" with a lower case "c". Try changing one of them and see if that does the trick.

AndyR

[flakfiser]

yea, i should of caught that. i know enough basic javascript to know it's case sensitive.

thanks.

i'll report soon with final code after a couple of tests

thanks again :)

[flakfiser]

ok, here is the final code. now, i had to put if then else in there because of the fact that they can back track to previous pages, so i need to see if they did this, to decide which button should be checked.

here is the session set in the head tag
---------------------------------------------------------------
<%
if request.form > "" then 'checks if the form is posted
session("colorBW")=request.form("mycolor")
end if
%>
---------------------------------------------------------------

now here is the actual code in the body

---------------------------------------------------------------
<% if session("colorBW") = "color" then %>
<input type="radio" name="mycolor" <% if request.form("mycolor") <> "bw" then response.write "Checked "%> value="color" onClick="
if (this.checked) {
this.form.action=self.location.href;
this.form.submit();
}
return true;">
Color
<br>
<input type="radio" name="mycolor" <% if request.form("mycolor") ="bw" then response.write "Checked "%> value="bw" onClick="
if (this.checked) {
this.form.action=self.location.href;
this.form.submit();
}
return true;">
Black &amp; White
<% else %>
<input type="radio" name="mycolor" <% if request.form("mycolor") = "color" then response.write "Checked "%> value="color" onClick="
if (this.checked) {
this.form.action=self.location.href;
this.form.submit();
}
return true;">
Color
<br>
<input type="radio" name="mycolor" <% if request.form("mycolor") <> "color" then response.write "Checked "%> value="bw" onClick="
if (this.checked) {
this.form.action=self.location.href;
this.form.submit();
}
return true;">
Black &amp; White
<% end if %>
--------------------------------------------------------------------



if there are any better ways of doing this, please enlighten me, as i would like to know. i do know that this is working though, so thank you very much.

[flakfiser]

ok, great i will make that change

thanks again guys, you've been a huge help.