>Hi all,
>
>I have what I thought would be a simple task. I have a user control on an asp.net page showing an agreement form. All I want to do is enable a continue button after a checkbox is checked to indicate agreement. I wanted to avoid a postback so am trying to set the button to enabled when the checkbox is checked but I cannot get this to work. I have tried several approaches found on web including the below. (I changed the angle brackets to parens so they would show)
>
>Anybody with javascript knowledge have an answer that might help me? Thanks a bunch
>Tim
>
>
>This is just one approach I tried.
>
> (mm:mmCheckBox ID="chkAgree" runat="server" Checked="false" Text="I Agree to the Terms" /)
>
> (mm:mmButton ID="btnAgreeContinue" runat="server" Text="Continue"
> Enabled="False" /)
>
>function SetAgreeAndContinue(checkbox, buttonid) {
> var button = document.getElementById(buttonid);
>
> if (checkbox.checked)
> button.enabled = true;
> else
> button.enabled = false;
> }
>
>In the code behind
>protected override void OnInit(EventArgs e)
>{
> chkAgree.Attributes.Add("onClick", string.Format("javascript:SetAgreeAndContinue(this,'{0}');", btnAgreeContinue.ClientID));
> base.OnInit(e);
>}
>Haven't tried your code but something based on this should work (assuming the mm controls are derived from the asp ones):
<head runat="server">
<title></title>
</head>
<script language="javascript" type="text/javascript">
function SetAgreeAndContinue(checkbox) {
var button = document.getElementById("btnAgreeContinue");
button.disabled = !checkbox.checked;
}
</script>
<body>
<form id="form1" runat="server">
<div>
<asp:CheckBox ID="chkAgree" runat="server" onclick="SetAgreeAndContinue(this)" />
<asp:Button ID="btnAgreeContinue" runat="server" Text="OK" disabled="true" />
</div>
</form>
</body>
