javascript the confirm alert function is not functioning properly when paired with a disabled button in an ASP.NET WebForms application

Question

javascript the confirm alert function is not functioning properly when paired with a disabled button in an ASP.NET WebForms application

My webform has a submit button that triggers a javascript function. Here is the code for the button:

<asp:Button ID="btnSub" runat="server" Text="submit" OnClientClick="return processSub();" />

The javascript function being called looks like this:

function processSub(){

    var btnId = '<%= btnSub.ClientID %>'

    var userSelection = confirm('Are you sure you wish to submit');
    if (userSelection){
         document.getElementById(btnId).setAttribute("disabled","disabled");
         return true;
    } else {
         return false;
    }
}

I am facing an issue where the submission doesn't happen when I try to disable the submit button using

document.getElementById(btnId).setAttribute("disabled","disabled");

. However, it works fine when I comment out this line within the IF block.

Can anyone clarify why this happens and provide a solution on how to make it work? Please note that I am not using any JavaScript library and prefer not to use one. Thank you.

javascript asp.net webforms

Answer 1

Answer №1

Although no OnClick event is specified for the button, it will still trigger a form submission when clicked. The button's disabled state can be set using javascript, but this will be reset as soon as the form is submitted.

If you wish to disable the button after user confirmation, you can do so in the code behind.

<asp:Button ID="btnSub" runat="server" Text="submit" OnClientClick="return processSub();" 
    OnClick="btnSub_Click" />

protected void btnSub_Click(object sender, EventArgs e)
{
    //disable the button
    btnSub.Enabled = false;
}

Answer 2

Although no OnClick event is specified for the button, it will still trigger a form submission when clicked. The button's disabled state can be set using javascript, but this will be reset as soon as the form is submitted.

If you wish to disable the button after user confirmation, you can do so in the code behind.

<asp:Button ID="btnSub" runat="server" Text="submit" OnClientClick="return processSub();" 
    OnClick="btnSub_Click" />

protected void btnSub_Click(object sender, EventArgs e)
{
    //disable the button
    btnSub.Enabled = false;
}

Answer 3

Answer №2

Execute JavaScript to submit the form prior to returning in an if statement

document.forms[0].submit();

Answer 4

Execute JavaScript to submit the form prior to returning in an if statement

document.forms[0].submit();

javascript the confirm alert function is not functioning properly when paired with a disabled button in an ASP.NET WebForms application

Answer №1

Answer №2

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