How to get the checkboxes with in javascript asp.net

Question

Hi Every one I am developing one web application in asp.net. In that application I have one checkbox(Is Negative marking). when I check that check box one text box will display and I have to enter Minus marks. and when I uncheck that checkbox the textbox will not display. I need to write the code in javascript only. so can u please explain how do that ? Thanks in advance. Lakshmi

Dorababu Meka · Answer

Try this function javascriptEvent() { if (window.document.getElementById( chkis_vemarking ).checked) { window.document.getElementById( txtminusmarks ).style.visibility = visible; window.document.getElementById( txtminusmarks ).focus(); } else { window.document.getElementById( txtminusmarks ).style.visibility = hidden; } } function JavaScriptOnLoad() { window.document.getElementById( txtminusmarks ).style.visibility = hidden; } In body write this to set text box initially to false Your check box and text box should be as follows vemarking  Text= Is -ve Marking  AutoPostBack=false onclick=javascriptEvent(); runat=server /> txtminusmarks  runat=server /> Check the attached code

Dorababu Meka · Answer

Welcome

Lakshmi Narayan J · Answer

Hi Thanks for sending code. It's working fine. Thanks & Regards Lakshmi.

Vishal Shinde · Answer

Hi Thanks for reply textbox(txtMinusMarks) is in same page only. I need to check whether the check box is checked or not If it is checked then display the textbox other wise don't display the textbox. My code is Text=Is -ve Marking oncheckedchanged=CheckStatus/> Thanks Lakshmi.

Muralidharan Deenathayalan · Answer

Can you please post your code ? Does the textbox is available in your page ? document.getElementById(textboxid).style.visibility=visible; try this.