Hi,

Ok, Allow me to explain about our behaviour. When you Set Value at server side, indeed the value would be loaded/set. But the list/resultBox has not been loaded yet.
IsValueInRange method is designed for when you typed something on WebCombo or ShowDropDown (as designed).
If you want the resultbox to be loaded at the first load, then the only workaround is calling the dropdown at client side. 

e.g

function WebCombo1_OnInitialize(controlId)
{
	var WebCombo1 = ISGetObject(controlId);
	WebCombo1.ShowDropDown();
	return true;
}

Hope this helps.

Regards,
Handy

Hi,

I get another issue.

Scenario the same: WebCombo1 and Button.

Javascript:

this.onload = Button1_onClick;

function WebCombo1_OnInitialize(ctrlId) {
            var WebCombo1 = ISGetObject("WebCombo1");
            WebCombo1.ShowDropDown();
            return true;
}

function Button1_onClick() {
            var WebCombo1 = ISGetObject("WebCombo1");
            alert(WebCombo1.IsValueInRange());
}

When the page (on the client side) trigger onload event , I've got alert with "false". When I click on Button1 once again I've got true.

More complicated scenario:
In my app I'd like to read some additional information (from my webcombo with multicolumn ) at onload page (client side) and call some method to enable, disable, set default parameters another controls.

How can I do that ? 

regards

Andrzej

You need to let the WebCombo1_OnInitialize to finish first in order to obtain the combo additional information. Specifically, you need to have WebCombo finish creating its resultbox (by invoking ShowDropDown() method).

You can use window.setTimeout at on load page to add some delay until WebCombo finish creating its resultbox.

<script language="javascript" type="text/javascript">
    <!--
    this.onload = WebButton1_OnClientClick;

    function WebButton1_OnClientClick(controlId, parameter) {
        var WebButton1 = ISGetObject(controlId);
        var WebCombo1 = ISGetObject("WebCombo1");

        window.setTimeout(function() {
            alert(WebCombo1.IsValueInRange());
        }, 600);

        return true;
    }

    function WebCombo1_OnInitialize(controlId) {
        var WebCombo1 = ISGetObject(controlId);
        WebCombo1.ShowDropDown();

        return true;
    }
    -->
</script>