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Oscar Mora
1960
Cancel postback when hitting enter on an item
posted

I have my webcombo configured to ComboTypeAhead = Suggest and EnaleXmlHttp = true.

When the grid is displayed I can click a row with the mouse. The value is displayed in the combo and the grid closes. Now, if I change the selected row using the keyboard arrows and then press enter, there is a postback. Is there a way to cancel that postback?

Thanks.

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  • 28464
    Verified Answer
    posted

    Yes, this took me some time to figure out as well. Here is what I got working on my case - the idea is to handle the EditKeyDown event and check the keyCode - if it is 13 (Enter), close the dropdown and the return true to cancel the postback.

        <script language="javascript">
       
        function keyDown(combo, newValue, keyCode)
        {
            if (keyCode == 13)
            {
                var combo = igcmbo_getComboById(combo);
                combo.setDropDown(false);
                return true;           
            }
        }
       
        </script>
       
        <igcmbo:WebCombo ID="WebCombo1" runat="server" DataSourceID="AccessDataSource1">       
            <ClientSideEvents EditKeyDown="keyDown" />

    Hope this helps. 

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