onkeypress event for text box

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Can you help me onkeypress event in java script

C#

function kgstotons()
  {
  var quantity=parseFloat(document.getElementById('t;%=txtQuantity.ClientID%gt;').value);


       if(isNaN(quantity)!=true  )
       {

            document.getElementById('<%=lblTons.ClientID%gt;').innerText = parseFloat(document.getElementById('<%=txtQuantity.ClientID%>').value) / parseFloat(1000);

           return false;
       }
  }

.cs file

txtQuantity.Attributes.Add("onkeydown", "javascript:return kgstotons();");

Posted 16-Feb-12 0:10am

Member 8609405

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thatraja 16-Feb-12 6:16am

What's the error message?

3 solutions

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E.F. Nijboer · Answer 1 · 2012-02-16T00:24:00

Solution 1

You probably can find your answer here: http://forums.asp.net/t/934912.aspx/1[^]

Good luck!

Posted 16-Feb-12 0:24am

E.F. Nijboer

Dhol Gaurav · Answer 2 · 2012-02-16T00:31:00

Solution 2

you have to remove "Return" from the event binding. update your server side code as below.

C#

txtQuantity.Attributes.Add("onkeydown", "kgstotons();");

Posted 16-Feb-12 0:31am

Dhol Gaurav

Sarvesh Kumar Gupta · Answer 3 · 2012-02-16T00:41:00

Solution 3

Hi, use below code:

C#

txtQuantity.Attributes.Add("onkeyup", "javascript:return kgstotons();");

Posted 16-Feb-12 0:41am

Sarvesh Kumar Gupta