postback via java for TextBox

[aussie1968]

hi,

i need to be able to find out when the user changes a date, which is displayed in a textbox using a CalendarExtender.
because the CalendarExtender only allows client side (java) calls and does not call a function in code behind, i have to somehow find a way to do this using java.
i would like to use the OnTextChanged event of the textBox if possible.
i have got most of the code, but i do not know how to retrieve the targetID object of the CalendarExtender.
i must admit, my java knowledge is not the best and i can not find any info on it.

here the code


<script type="text/javascript">
function UpdateClientDate(cal)
{
__doPostBack(>>>textBoxObj<<<,'test');
// textBoxObj is supposed to be the TargetControlID of CalendarExtender1
// obj of CalendarExtender1 should be the parameter cal, right ?
}
</script>

...
<asp:TextBox ID="IDE_DATE_FROM" runat="server" Width="75px" OnTextChanged="IDE_DATE_FROM_TextChanged"></asp:TextBox>
<ajaxToolkit:CalendarExtender ID="CalendarExtender1" runat="server" Format="dd/MMM/yyyy" OnClientDateSelectionChanged="UpdateClientDate" TargetControlID="IDE_DATE_FROM" />
...


code behind

protected void IDE_DATE_FROM_TextChanged( object sender, EventArgs e )
{
}


any help would be appreciated

cheers
Martin

[aussie1968]

__doPostback might not be the right way to go if i want to use an event ;)
the follwing function should be more suitable, but i still need to retrieve the obj of the textBox.

function FireEvent(el, ev)
{
var localE = document.createEvent("HTMLEvents");

localE.initEvent(ev.substring(2, ev.length), true, true);
el.dispatchEvent(localE);
}

since i am using this in a gridView with a dynamic amount of rows, i guess i can
not use the follwing either.

$get('ctl00_ContentPlaceHolder2_IDE_DATE_FROM');

cheers
Martin

[jmRFr]

hi,

i need to be able to find out when the user changes a date, which is displayed in a textbox using a CalendarExtender.
because the CalendarExtender only allows client side (java) calls and does not call a function in code behind, i have to somehow find a way to do this using java.
i would like to use the OnTextChanged event of the textBox if possible.
i have got most of the code, but i do not know how to retrieve the targetID object of the CalendarExtender.
i must admit, my java knowledge is not the best and i can not find any info on it.

here the code


<script type="text/javascript">
function UpdateClientDate(cal)
{
__doPostBack(>>>textBoxObj<<<,'test');
// textBoxObj is supposed to be the TargetControlID of CalendarExtender1
// obj of CalendarExtender1 should be the parameter cal, right ?
}
</script>

...
<asp:TextBox ID="IDE_DATE_FROM" runat="server" Width="75px" OnTextChanged="IDE_DATE_FROM_TextChanged"></asp:TextBox>
<ajaxToolkit:CalendarExtender ID="CalendarExtender1" runat="server" Format="dd/MMM/yyyy" OnClientDateSelectionChanged="UpdateClientDate" TargetControlID="IDE_DATE_FROM" />
...


code behind

protected void IDE_DATE_FROM_TextChanged( object sender, EventArgs e )
{
}


any help would be appreciated

cheers
Martin

Martin,

You may call

document.getElementById(<%=IDE_DATE_FROM.Idclient%>)

Regards