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ASP.Net page enter key causing post back

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眼角桃花
眼角桃花 2020-12-02 23:40

I have an aspx page that postsback when it should not. there are two text boxes, two listboxes and two buttons on the page. if at any-point the enter key is pressed the firs

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6条回答
  • 忘掉有多难
    2020-12-02 23:44
    • You could set the DefaultButton on the Form or a Panel. This way you have full control what happens.
    • Set UseSubmitBehavior="False" on your Buttons. This disables the "AutoPostback" on Enter.

    I would prefer the second if i wanted to prevent Postbacks on Enter completely.

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  • 星月不相逢
    2020-12-02 23:53

    Only put this on you ASP.Net TextBox control:

    <asp:TextBox ID="TextBox1" runat="server"
   onkeydown = "return (event.keyCode!=13);" >
</asp:TextBox>
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  • Happy的楠姐
    2020-12-02 23:56

    Use the below code to disable enter key causing postback. This piece of code will block the enter key in all browsers 4.0 above, except when enter is pressed in a Textarea or on the Submit button itself.

    <script language="JavaScript">
var nav = window.Event ? true : false;
if (nav) {
window.captureEvents(Event.KEYDOWN);
window.onkeydown = NetscapeEventHandler_KeyDown;
} else {
document.onkeydown = MicrosoftEventHandler_KeyDown;
}

function NetscapeEventHandler_KeyDown(e) {
if (e.which == 13 && e.target.type != 'textarea' && e.target.type != 'submit') { 
return false; 
}
return true;
}

function MicrosoftEventHandler_KeyDown() {
if (event.keyCode == 13 && event.srcElement.type != 'textarea' && 
event.srcElement.type!= 'submit')
return false;
return true;
}
</script>
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  • 自闭症患者
    2020-12-02 23:57 
    <body onkeydown = "return (event.keyCode!=13)">
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  • 日久生厌
    2020-12-03 00:00

    are you using jQuery?

    if so:

    $(document).keypress(function(e)
{
    if(e.keyCode === 13)
    {
        e.preventDefault();
        return false;
    }
});
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  • 无人共我
    2020-12-03 00:08

    This is default behavior of a web application, you could take one of the tutorials that you found and hide that behavior, by simply abandoning the submit.

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