textbox maximum length in asp.net

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Hi experts,

on my webpage i have Textboxes to enter the information.

I have a Textbox with MobileNo as TxtMobileNo, In this the user will enter mobileno. it has set Maximum length to 10.

if the user enters 10 numbers and press on any key the cursor must go the other textbox.

thats it.

help me thanks.

Posted 13-Aug-13 23:54pm

HYD Webdeveloper

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Deviprasad Das · Answer 1 · 2013-08-14T00:07:00

Solution 2

you have to handle keypress event of the textbox.

JavaScript

$('#txtPhoneNumber').keyPress(function() {
    if($(this).val().length == 10) {
        $('#<next-element-id>').focus();
    }
});

Posted 14-Aug-13 0:07am

Deviprasad Das

v2

CodeBlack · Answer 2 · 2013-08-14T00:03:00

Solution 1

Create one javascript method.
in that method check the length of the textbox's text. if it is 10 then set focus to another control.

and call this method on onkeypress event of the textbox.

Posted 14-Aug-13 0:03am

CodeBlack

Comments

HYD Webdeveloper 14-Aug-13 6:05am

please can you show me once.

CodeBlack 14-Aug-13 6:39am

I have submitted my code as a solution number 5.
Dont forget to mark it as answer and rate this solution.

pradippatel99 · Answer 3 · 2013-08-14T00:23:00

hii

please add javascript function in textbox key pressed event and maintain
textbox focus base on maxlength

Example

XML

<asp:TextBox ID="txt1" MaxLength="4" runat="server" onkeypress="myFunction(event)"  ></asp:TextBox>
       <asp:TextBox ID="txt2" MaxLength="4" runat="server"></asp:TextBox>
       <script type="text/javascript" >
           function myFunction(event) {
               var str = document.getElementById('<%=txt1.ClientID%>').value;
               if (event.keyCode == 8) {
                   document.getElementById('<%=txt1.ClientID%>').focus();
               }
               else if (str.length == 4) {
                   document.getElementById('<%=txt2.ClientID%>').focus();
               }
               else { }
           }
       </script>

HTML

here we have used keycode 8 for backspace
check it

CodeBlack · Answer 4 · 2013-08-14T00:37:00

ASPX Code for TextBox :

XML

<asp:TextBox runat="server" ID="textMobileNo" MaxLength="10" onkeypress="ManageFocus(event)"></asp:TextBox>
<asp:TextBox runat="server" ID="textNew"></asp:TextBox>

Javascript Method:

C#

function ManageFocus(e) {
           var textLength = document.getElementById('<%=textMobileNo.ClientID%>').value.length;
           var maxLength = document.getElementById('<%=textMobileNo.ClientID%>').maxLength;

           if (textLength == maxLength) {
               document.getElementById('<%=textNew.ClientID%>').focus();
           }
       }

textbox maximum length in asp.net

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