Assign variable to form field value

Assign variable to form field value

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I'm trying to assign a value to a hidden form field, the value comes from a query string parameter. The function to extract the query string parameter works fine, however the function to assign the variable (using document.forms) to the hidden form field value attribute doesn't seem to work, the value is empty if I inspect element, however it works if I run it through the console in Chrome. Many thanks.

Get variable from function that finds query string:

var actionCode = getAllUrlParams().actioncode;

Set hidden form field value:

function setHidden()
{
  document.forms[0].action.value += actionCode;
  return true;
}

Form HTML:

<input id="field25" name="action" type="text" value="" class="field-size-top-large" disabled="disabled">

Live page is here: http://exhibit.ubm-events.com/LP=83?cid=sm(n)_VIS_DRV20180515%7C1&actioncode=EMA1234


pass the actionCode variable to the function so that it's definitely in scope, and use .getElementById seeing as the element has an ID.

function setHidden(actionCode)
{
  document.getElementById("field25").value += actionCode;
  return true;
}

Set Input Value to Javascript Variable, You can set it in your javascript code like: <input id="myInput" type="text" value="​Swag" /> <script> var test = "test"; document.getElementById("myInput").value  The Default value of my Request Status field is set to RequestStatusVar. When I test it out for the first time by creating a new form, I click the button which sets the variable to "New" and Request Status is set to "New" as well.


Try below code

function setHidden(a,b){
      return a*b;
 }


document.getElementById('field25').value = setHidden(2, 3);

Write a variable to a form input value - JavaScript, So I have a variable that I want to write as a form input value, if I use <input You need to assign the value with a function or something. To set a field value based on another field’s value If you’d like to have the status of your form, based on a certain condition, the example above just looks at whether the form is new or not, but if you want it to be based on the value of another field, your step 2 would be different.


you need to select the element using jquery and assign the value to it

$("#field25").val("your value")

Ref http://api.jquery.com/val/#val2

Can't pass an input value into a javascript variable - JavaScript, I am trying to pass an input value into a variable, but for some reason my code doesn't work. I saw other But I still can't assign it to a variable! Thank you for  You can use the Microsoft Visual Basic for Applications Variables collection to set and retrieve the contents of a string variable in a Word document or template. Also, you can use the DocVariable field to retrieve the value of a document variable after it has been set to display within a Word document.


How Can I Store the Value of a Text Input Box in a Variable , I need userInput to store the input, so then I can call on that variable… to get the value of the search box, so, move your assignment inside but  The function to extract the query string parameter works fine, however the function to assign the variable (using document.forms) to the hidden form field value attribute doesn't seem to work, the value is empty if I inspect element, however it works if I run it through the console in Chrome. Many thanks.


Variables From External Sources - Manual, There were some other ways of accessing user input in old PHP versions. If you wish to assign multiple values to a single cookie variable, you may assign it as  Assign Text Box Value from another Text Box Input. I am attempting to set a text field to retrieve a value from another field that is between a specific value. var SqFt = this.getField("Square Footage#1"); All this returns in my form is the 80. It automatically updates the field before the square footage field is even entered.


PHP and HTML - Manual, What encoding/decoding do I need when I pass a value through a form/URL? use an <input type="image"> tag, but the $foo.x and $foo.y variables aren't available. This tells PHP to treat $var as an array and each assignment of a value to  RE: Assign variable value to Unbound text box control Rolliee (Programmer) 3 Jul 02 10:48 Use an event such as a command box (or any of many such) and in the event code , use the following code.