Javascript how to make the dropdown value to reset to intiall value(checking the check box

Posted Date: 30 Oct 2009 Posted By: kumar Member Level: Gold Points: 1 Responses: 3

hi, "INSERT MODE"

i have check box in one "tr". and another dropdown control in another "tr" intially dropdown control will be invisiable intially .

but once the user checks the check box. the dropdown control should be visiable and he can select the value. but again the user unchecks the check box the dropdown should be set to default value that is "--selec--"

"UPDATE MODE" intailly checkbox.Test = dt.cloumn["state"].tostring();

if(checkbox.Test!= "") { checkbox.checked=true; //then value dropdown value should be shown like"india" } else { checkbox.checked="false" //then value dropdown value should be default "--select" } in insert mode checkbox willbe unchecked in update mode if checkbox in checked then the value of dropdown should be shown"india" in update mode if checkbox in unchecked then the value of dropdown should be shown default"-select-"

Responses

Author: Programmer 30 Oct 2009

Member Level: Diamond

Rating:

Points: 2

On the onchange event of the checkbox write a javascript function.In this function access the dropdown control and set the value as per your requirement.

Author: kumar 30 Oct 2009

Member Level: Gold

Rating:

Points: 2

thanks for the replay but i am new to javscript programming can u give te sample code how to do it
thank you

Author: lakshya 30 Oct 2009

Member Level: Gold

Rating:

Points: 2

you may try this:
set the autopostback property of checkbox to true , this will post back the page. checkbox has an event CheckedChanged , qrite your code their

Happy dotneting Spread Smiles :-)
Visit Lakshya

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