How can I validate this?

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Mobile No:

<asp:textbox id="txtmobile" run="ser" /><br />
If you don't have mobile <a önclick="showLandline()"> Click here </a>
<div id="hiddenLandline" style="display:none">
  <asp:textbox" id="txtlandline" run="ser" />
</div>
<br />
<asp:button id="btnSubmit" text="Validate" run="ser"/>

<script type="text/javascript">
  function showLandline()
  {
    document.getElementById('hiddenLandline').style.display="block";
  }
</script>

When I click the Validate button, the required field validator validate only mobile no but if landline text box has display property block than it will checks that both or either textbox don't be empty.
If landline textbox display property is none than required validator don't validate this field.

Posted 23-Sep-11 18:18pm

Dinesh Ambaliya

Updated 23-Sep-11 18:53pm

Rajesh Anuhya

v3

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rkthiyagarajan 24-Sep-11 0:26am

If you set target field for land line textbox?

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Deepthi Aravind · Answer 1 · 2011-09-23T19:17:00

Try this ..

<pre lang="xml"><script type="text/javascript">
function showLandline() {
document.getElementById('hiddenLandline').style.display = "block";
document.getElementById('divMob').style.display = "none";
}
</script></pre>

<body>
<form id="form1" runat="server">
<div>

<asp:textbox id="txtmobile" runat="server" xmlns:asp="#unknown" /><br />
<div id="divMob">
<asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" errormessage="mob" xmlns:asp="#unknown">
ControlToValidate="txtmobile"></asp:requiredfieldvalidator>
</div>
If you don't have mobile <a onclick="showLandline()">Click here </a>
<div id="hiddenLandline" style="display: none">
<asp:textbox id="txtlandline" runat="server" xmlns:asp="#unknown" />
<asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server" errormessage="land" xmlns:asp="#unknown">
ControlToValidate="txtlandline"></asp:requiredfieldvalidator>
</div>
<br />
<asp:button id="btnSubmit" text="Validate" runat="server" xmlns:asp="#unknown" />
</div>
</form>
</body><pre lang="text"></pre>