EmptyMessage doesn't show when CheckBoxes is set to true

3 posts, 1 answers
  1. Evgeniya
    Evgeniya avatar
    6 posts
    Member since:
    Sep 2015

    Posted 21 Jan Link to this post



    I am using version 2014.3.1209.40 and I have the following combo box:

    <telerik:RadComboBox ID="ddCostCenter" runat="server" CheckBoxes="true"  EmptyMessage="Select Cost Center" > </telerik:RadComboBox>

    If I remove CheckBoxes="true" the empty message shows on initial load, otherwise it doesn't.

    How should I set it up, so EmptyMessage shows on initial load when I have the checkboxes?



  2. Evgeniya
    Evgeniya avatar
    6 posts
    Member since:
    Sep 2015

    Posted 21 Jan in reply to Evgeniya Link to this post

    This behaviour goes away if I specify CheckedItemsTexts="DisplayAllInInput" but I don't want to do that.

     Also, how should I replace the message "All items checked"when all items are checked with my message?


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  4. Answer
    Ivan Danchev
    Ivan Danchev avatar
    788 posts

    Posted 26 Jan Link to this post

    Hello Evgeniya,

    The missing empty message on load, when check boxes are enabled, was a bug in the 2014 version of the controls and is not present in the latest official version. If you are using the old version a possible workaround would be to set the empty message in the ComboBox' OnClientLoad client-side event handler as demonstrated below:
        function OnClientLoad(sender) {
            sender.set_emptyMessage("Select an Item");
        <telerik:RadComboBox ID="RadComboBox1" runat="server" CheckBoxes="true" EmptyMessage="Select an Item"
            EnableCheckAllItemsCheckBox="true" OnClientLoad="OnClientLoad">
            <Localization AllItemsCheckedString="My custom message" />

    The code snippet also answers your second question showing how you can change the default "All items checked" string.

    Ivan Danchev
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