点击功能只能使用一次

Question

I have these two simple js functions :

CTCC.Transactions.PieceRecuClick = function (source) {
    $(".chk input[type='checkbox']").attr('checked', true);
}

CTCC.Transactions.PieceNonRecuClick = function (source) {
    $(".chk input[type='checkbox']").attr('checked', false);
}

These affect the same checkboxes, a lot of CheckBoxes that all look like :

<asp:CheckBox runat="server" Class="chk" ID="chkPieceJust" Text="Recues" Enabled="true" Checked="<%# CheckBoxChecked(Container.DataItem as Transaction) %>" />

When i click on ("put to true") it works the first time, but only the first time... I can push lots of time on ("put to false") and it always work. It's not a big issue, not at all, but i'm being curious about that strange behaviour. here, my html content after i push the "true" button (note that it's always the same after i push it, but it changes the checkboxes only the first time)

<input id="notUseful" type="checkbox" name="NotUseful" checked="checked">

This is how i call the functions:

   <input id="chkAllPieceJust" type="button" value="Mettre toutes les pièces justificatives à «Recues» " onclick="CTCC.Transactions.PieceRecuClick(this);" />
   &nbsp;&nbsp;
   <input id="chkAllPieceJust2" type="button" value="Mettre toutes les pièces justificatives à «Non-Recues» " onclick="CTCC.Transactions.PieceNonRecuClick(this);" />

Answer 1

@tymeJV在评论中回答了我，我现在使用.prop funtion而不是.attr，它运行完美。