neat javascript?? vsnet2k3

rodchar

hey all,

is there a neater way to write the following javascript code? Basically
there just 3 controls on my webform a button,checkbox,radio button. if you
check the checkbox it just enables the radiobutton. the button is just there
for postback testing.

<script type="text/javascript">
var rb
var cxb
function InzSr(){
rb=document.getElementById("RadioButton1")
cxb=document.getElementById("CheckBox1")
rb.disabled=(cxb.checked==true)?false:true
}

function test(cxb){
rb.disabled=(cxb.checked==true)?false:true
}
</script>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<P>
<asp:CheckBox id="CheckBox1" runat="server"
onClick="test(this)"></asp:CheckBox>
<asp:RadioButton id="RadioButton1" runat="server"></asp:RadioButton></P>
<P>
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button></P>
<script type="text/javascript">InzSr();</script>
</form>
</body>

Aug 20 '06 #1

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1142

Tim_Mac

one simplification i can spot is as follows:

instead of:
rb.disabled=(cxb.checked==true)?false:true
just use:
rb.disabled = !cxb.checked;

the use of the conditional operator isn't necessary here, because the
expression inside the brackets evaluates to a boolean anyway.

also, just to be picky :) the "==true" is unnecessary because ".checked" is
already a boolean property.

hope this helps
tim

"rodchar" <ro*****@discussions.microsoft.comwrote in message
news:E3**********************************@microsof t.com...

hey all,

is there a neater way to write the following javascript code? Basically
there just 3 controls on my webform a button,checkbox,radio button. if you
check the checkbox it just enables the radiobutton. the button is just
there
for postback testing.

<script type="text/javascript">
var rb
var cxb
function InzSr(){
rb=document.getElementById("RadioButton1")
cxb=document.getElementById("CheckBox1")
rb.disabled=(cxb.checked==true)?false:true
}

function test(cxb){
rb.disabled=(cxb.checked==true)?false:true
}
</script>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<P>
<asp:CheckBox id="CheckBox1" runat="server"
onClick="test(this)"></asp:CheckBox>
<asp:RadioButton id="RadioButton1" runat="server"></asp:RadioButton></P>
<P>
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button></P>
<script type="text/javascript">InzSr();</script>
</form>
</body>

Aug 21 '06 #2

rodchar

thank you very much.

"Tim_Mac" wrote:

one simplification i can spot is as follows:

instead of:
rb.disabled=(cxb.checked==true)?false:true
just use:
rb.disabled = !cxb.checked;

the use of the conditional operator isn't necessary here, because the
expression inside the brackets evaluates to a boolean anyway.

also, just to be picky :) the "==true" is unnecessary because ".checked" is
already a boolean property.

hope this helps
tim

"rodchar" <ro*****@discussions.microsoft.comwrote in message
news:E3**********************************@microsof t.com...
hey all,

is there a neater way to write the following javascript code? Basically
there just 3 controls on my webform a button,checkbox,radio button. if you
check the checkbox it just enables the radiobutton. the button is just
there
for postback testing.

<script type="text/javascript">
var rb
var cxb
function InzSr(){
rb=document.getElementById("RadioButton1")
cxb=document.getElementById("CheckBox1")
rb.disabled=(cxb.checked==true)?false:true
}

function test(cxb){
rb.disabled=(cxb.checked==true)?false:true
}
</script>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<P>
<asp:CheckBox id="CheckBox1" runat="server"
onClick="test(this)"></asp:CheckBox>
<asp:RadioButton id="RadioButton1" runat="server"></asp:RadioButton></P>
<P>
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button></P>
<script type="text/javascript">InzSr();</script>
</form>
</body>

Aug 29 '06 #3

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