Help: Requiredfield validator

[Sean]

Hi,

I have 2 buttons A and B, textbox C and dropdown list D. When A is clicked,
C is required field. When B is clicked, C and D are required fields. There
is a dummy entry "please select" in the dropdown list. When B is clicked, D
can't be the dummy option.

I wonder what is the best practice for this case? I was thinking to use
server-side validation for these controls, and created 2 RequiredField
Validators and set them TRUE at designer. Is there anybody who can enlighten
me? Thanks.

[Elliot Rodriguez]

Sean:

I would use a CustomValidator for this. Using JavaScript its really easy to
detect if the first item in the dropdown box is selected.

Something like:

function isFirstPicked()
{
if (document.formn ame.dropdownlis tname.selectedI ndex == 0)
{
return false;
}
}

tie the function into your CustomValidator and you should be good to go.

HTH
--
Elliot M. Rodriguez, MCSD
*** It would take 227 cans of Mountain Dew to kill me***

"Sean" <ss****@yahoo.c om> wrote in message
news:OF******** ********@TK2MSF TNGP09.phx.gbl. ..

Hi,

I have 2 buttons A and B, textbox C and dropdown list D. When A is clicked, C is required field. When B is clicked, C and D are required fields. There
is a dummy entry "please select" in the dropdown list. When B is clicked, D can't be the dummy option.

I wonder what is the best practice for this case? I was thinking to use
server-side validation for these controls, and created 2 RequiredField
Validators and set them TRUE at designer. Is there anybody who can enlighten me? Thanks.

[Sean]

I got the idea. Thank you.

"Elliot Rodriguez" <el************ **@hotspammyspa mmail.com> wrote in message
news:#u******** ******@TK2MSFTN GP10.phx.gbl...

Sean:

I would use a CustomValidator for this. Using JavaScript its really easy to detect if the first item in the dropdown box is selected.

Something like:

function isFirstPicked()
{
if (document.formn ame.dropdownlis tname.selectedI ndex == 0)
{
return false;
}
}

tie the function into your CustomValidator and you should be good to go.

HTH
--
Elliot M. Rodriguez, MCSD
*** It would take 227 cans of Mountain Dew to kill me***

"Sean" <ss****@yahoo.c om> wrote in message
news:OF******** ********@TK2MSF TNGP09.phx.gbl. ..

Hi,

I have 2 buttons A and B, textbox C and dropdown list D. When A is clicked,

C is required field. When B is clicked, C and D are required fields. There is a dummy entry "please select" in the dropdown list. When B is

clicked, D

can't be the dummy option.

I wonder what is the best practice for this case? I was thinking to use
server-side validation for these controls, and created 2 RequiredField
Validators and set them TRUE at designer. Is there anybody who can

enlighten

me? Thanks.