Javascript Confirmation On if..else.. condition

Question

I have to show confirmation dialogue on particular condition.And then proceed according to YES or No clicked.I tried with the following.

In aspx:

<script type="text/javascript">
  function ShowConfirmation() {
    if (confirm("Employee Introduced already.Continue?") == true) {
      document.getElementById("hdn_empname").value = 1;
    }
  }

</script>

<asp:HiddenField ID="hdn_empname" runat="server" />

in cs:

  if (reader2.HasRows)
    {  
        Page.ClientScript.RegisterStartupScript(this.GetType(), "showAl", "ShowConfirmation();", true);
    }
    else
    {
        hdn_empname.Value ="1";
    }

    if ((hdn_empname.Value)=="1")
    {
       //some code to execute
    }

But hdn_empname shows value="" while debuging.

Can anyone help me doing this?

Thanks in advance.

Ramesh Rajendran · Accepted Answer · 2013-12-22 11:26:22Z

2

Try it You need to ClientID

document.getElementById('<%=hdn_empname.ClientID%>').value = 1;

I found out your main problems

The hidden field values will assign after the if condition call.

Edit :

So, You need to call your logic's in javascript side using ajax

if (confirm("Employee Introduced already.Continue?") == true) {

//some code to execute
    }

edited Dec 22, 2013 at 11:26

answered Dec 22, 2013 at 10:28

Ramesh Rajendran

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2 Comments

Shanna Over a year ago

So where do I assign the values?

Ramesh Rajendran Over a year ago

Alborz already said theis: it is better that you set the ShowConfirmation function on onClientClick of you button

Alborz · Accepted Answer · 2013-12-22 10:33:01Z

1

Where is your break point? If reader2.HasRows returns true your javascript will be registered. But it set the value on client and you get the result after postback.

answered Dec 22, 2013 at 10:33

Alborz

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4 Comments

Shanna Over a year ago

The above code(in question) is under button click. and I have set breakpoint in button click.

Alborz Over a year ago

So as i explained above the script is registered to client and the value will be eq 1 in the next post back. I think it is better that you set the ShowConfirmation function on onClientClick of you button.

Shanna Over a year ago

Ok.. But i need it the confimation only on particular condition

Alborz Over a year ago

May be the condition can be handled in ShowConfirmation function.But if you need to handle the condition in server side you can not handle it by this way. I suggest you using ajax call for handling the condition and showing confirm modal.

Zaheer Ahmed · Accepted Answer · 2013-12-22 10:37:39Z

1

hdn_empname is server controls Id which is different from client sided id, to get client sided id you need to use ClientID

try this:

document.getElementById('<%=hdn_empname.ClientID%>').value = "1";

You dont need to compare

if (confirm("Employee Introduced already.Continue?") == true)

this will work:

if (confirm("Employee Introduced already.Continue?"))

answered Dec 22, 2013 at 10:37

Zaheer Ahmed

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1 Comment

Shanna Over a year ago

No this did not wok for me

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