I try to pass text box value as a part of link href query string like this :

 <asp:TextBox ID="txt_reg" runat="server"></asp:TextBox>

 <a target="_blank" href="Schedule.aspx?nav=<%=txt_reg.Text %>" >ENTER</a>

---

But i get no value in nav parameter !

What should i do to pass the textbox value as a part of link ?

I try to pass text box value as a part of link href query string like this :

 <asp:TextBox ID="txt_reg" runat="server"></asp:TextBox>

 <a target="_blank" href="Schedule.aspx?nav=<%=txt_reg.Text %>" >ENTER</a>

---

But i get no value in nav parameter !

What should i do to pass the textbox value as a part of link ?

• javascript
• jquery
• html
• asp
• textbox

Share Improve this question Follow edited May 17, 2016 at 9:31 Anyname Donotcare asked May 17, 2016 at 9:07 Anyname DonotcareAnyname Donotcare 11.4k7272 gold badges231231 silver badges408408 bronze badges 4

• This happens cause the "txt_rag" is empty at load. You should use client-side code (ie. Javascript) to update the href property on the client.. – llouk Commented May 17, 2016 at 9:13
• @llouk : i write a number in the textbox then clicking on the link – Anyname Donotcare Commented May 17, 2016 at 9:15
• yes, I got it.. "<% %>" are server tags. The code inside it is runs only at load. And if at load the textBox is empty, it will output an empty string inside href. You should try looking for a solution using Javascript on that. – llouk Commented May 17, 2016 at 9:19
• @llouk Do You have any idea , how to do it client side please? – Anyname Donotcare Commented May 17, 2016 at 9:21

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3 Answers 3

Sorted by: Reset to default 3

Try this

<input type=text id=txt_reg />

 <a target="_blank" href="" onclick="this.href='Schedule.aspx?nav='+document.getElementById('txt_reg').value" >ENTER</a>

Try something like:

 <asp:TextBox ID="txt_reg" onchange="UpdateLink();" runat="server"></asp:TextBox>

 <a id="myLnk" target="_blank" href="Schedule.aspx?nav=" >ENTER</a>

<script>
function UpdateLink()
{
    var NavValue = document.getElementById("<%=txt_reg.ClientID%>").value;
    document.getElementById("myLnk").href = "Schedule.aspx?nav=" + NavValue;
}
</script>

use following code for setting value to href

$(document).ready(function () { $("#txt_reg").change(function () { $("a").attr("href","test.?=" +$(this).val()); }); });