How to check text in textbox using JavaScript

Ads
 

How to check text in textbox using JavaScript

How to check text in textbox using JavaScript

I have a form in HTML that contains text feilds and a submit button. The main purpose of this form is to take input from user. My qestion is that is it possible to check text feilds for text or null value. I want the HTML form to be accepted when if has values for all textfeild.

Please guide me.

View Answers

January 8, 2013 at 6:14 PM

JavaScript validation example to check text in textfeild

<script language="javascript">
    function validateForm()
    {
    var a=document.forms["RForm"]["Lname"].value;
    if (a==null || a=="")
      {
      alert("please Enter Login Name ");
      return false;
      }
      var b=document.forms["RForm"]["Pass"].value;
    if (b==null || b=="")
      {
      alert("please Enter password");
      return false;
      }
    </script>

Ads









Related Tutorials/Questions & Answers:
How to check text in textbox using JavaScript
How to check text in textbox using JavaScript  How to check text in textbox using JavaScript I have a form in HTML that contains text feilds... me.   JavaScript validation example to check text in textfeild <
Javascript generate textbox
Javascript generate textbox In this tutorial, you will learn how to generate a textbox on button click using javascript. Here is a javascript example... of textboxes. On clicking the button with respect to each textbox, it will give
Advertisements
How to Validate dynamically created text box in HTML using Javascript
How to Validate dynamically created text box in HTML using Javascript  Here is the HTML code to create text boxes dynamically. It works properly.... And also how to validate the text boxes created dynamically. <html>
How to get the text from textarea in HTML and store it in database using javascript and jsp
How to get the text from textarea in HTML and store it in database using javascript and jsp  How to get the text from textarea in HTML and store it in database using javascript and jsp <script> function str() { <
how to get data using dropdownlist, textbox and search button in jsp
how to get data using dropdownlist, textbox and search button in jsp  Hi, I want to display data using jsp,javascript and mysql. My Q. is If i select...' in textbox and click on search button it should show me all the title names
How to insert data from a combobox and textbox values into DB using JSP?
How to insert data from a combobox and textbox values into DB using JSP?  hi, How to insert a comb-box and a text box values in to DB using JSP? @DB:student; @table:stu_info; Combobox values:(class1,class2,class3); textbox1
How to create textbox on combo value selection using javacsript in jsp?
How to create textbox on combo value selection using javacsript in jsp?  dynamically create textbox on combo value selection. when select multiple values then create multiple textboxes
How to insert dynamic textbox values into database using Java?
How to insert dynamic textbox values into database using Java?  Hi I am trying to insert dynamic textbox values to database, my jsp form have 2... these dynamic textbox values to database(Oracle 11g)...Please help me out. I have
passing textbox value from one page to another page using html n javascript
passing textbox value from one page to another page using html n javascript  on button onclick event pass text box value and i want to pass value of variable at onclick event of button and also want to print it in textbox
J2ME Text Box Example
J2ME Text Box Example       This application illustrates how to create the text box using TextBox class. The TextBox class is a Screen that allows the user to enter and edit text
How to show autocomplete textbox values on combo box option selection using database?
How to show autocomplete textbox values on combo box option selection using database?  When I select option(i.e First Year) then it will show list of student names in auto-complete text box
Set Textbox in PowerPoint Slide Using Java
Set Textbox in PowerPoint Slide Using Java       In this example we are going create textbox to set text in PowerPoint using java. In this example we are creating an object of 
Insert value of dynamic generated text box in jsp using javascript
Insert value of dynamic generated text box in jsp using javascript  hello sir , i want to generate dynamic text box at run time and i did that using... using for dynamic row generation. <script LANGUAGE="JavaScript"><
how to create a text box using awt
how to create a text box using awt  give an example how creat multi buttons & text boxes
how to give validation using javascript in swing
how to give validation using javascript in swing   how to give validation using javascript in swing....... can somebody give code for username and password validation using javscript and swing
How to write a search functionality using javascript/jquery
How to write a search functionality using javascript/jquery   How to write a search functionality using javascript/jquery for ex: im searching "s" names it wil display "s" names
how to print HTML using javascript or Jquery
how to print HTML using javascript or Jquery  is there any way to print a document(created using Html and javascript) without using window.print, which works for all the browser specially chrome and firefox, I have used
How to put text file numbers to array and check the position of numbers?
How to put text file numbers to array and check the position of numbers?   I have numbers in text file data.txt 12 9 8 3 1
How to populate text fields using php code?
How to populate text fields using php code?  How could I use php to populate text fields by selecting a name of a business from dropdown list? Those text fields that will be populated by information in regards its company name
dynamically writing text javascript
dynamically writing text javascript  dynamically writing text javascript. Is it possible
dynamically writing text javascript
dynamically writing text javascript  dynamically writing text javascript. Is it possible
How to display user entered information using HTML and JavaScript
How to display user entered information using HTML and JavaScript. We are going to describe How to display user entered information using HTML and JavaScript. First of all we have created HTML form with two text fields "
how to access element added via javascript dynamically using jsp code
how to access element added via javascript dynamically using jsp code ... javascript dynamically using the jsp code. i am adding empty records on .jsp page using javascript (by calling a below function on click event of button
how to generate automatic bill based on selected values using jsp/javascript?
how to generate automatic bill based on selected values using jsp/javascript?  how to generate automatic bill based on selected values using jsp/javascript
JavaScript reverse text string
; In this section, we are going to reverse the text string using JavaScript... JavaScript reverse text string...: <html> <h2>Reverse text using JavaScript</h2> <
please check my code is wrong or ok.it was not work .this is form validation in javascript using jsf page
please check my code is wrong or ok.it was not work .this is form validation in javascript using jsf page  <p>?xml version='1.0' encoding...;title>view</title> <script type="text/javascript" >
How to Collapse Dropdowns on mouseclick on scrollbar in Safari Browser using javascript
How to Collapse Dropdowns on mouseclick on scrollbar in Safari Browser using javascript  How to Collapse Dropdowns on mouseclick on scrollbar in Safari Browser using javascript
how to validate the telephone number without using jquery in html with javascript
how to validate the telephone number without using jquery in html with javascript  how to validate the telephone number without using jquery in html with javascript
How To Page Refresh Using JavaScript In JSP
How To Page Refresh Using JavaScript In JSP...; display: block; width: 100px; color: black; text...; text-decoration: none; }  </style>
please check my code is wrong or ok.it was not work .this is form validation in javascript using jsf page
Form validation in javascript using jsf page  ?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional...; <title>view</title> <script type="text/javascript
how to get HTTP GET request value using javascript
how to get HTTP GET request value using javascript  how to get HTTP GET request value using javascript   how is how you can get HTTP GET request value using javascript: var parameter = window.location.search.replace

Ads