onchange

input field value to change upon selection of different dropdown menu options

由 我与影子孤独终老i 提交于 2019-12-02 04:42:19
I am creating an order form, using HTML, where I need to add a dropdown menu for 'which color' and a corresponding input field, which will be read-only, for the 'amount'. Creating the order form is easy but now what I want is that I want the 'amount' value to change depending on which 'color' has been selected from the 'which color' dropdown menu. Lets say that we've five options inside the 'which color' dropdown menu, namely: Black White Blue Green Orange <select id="color"> <option value="Black">Black</option> <option value="White">White</option> <option value="Blue">Blue</option> <option

jQuery onchange detection

由 烈酒焚心 提交于 2019-12-02 02:53:42
I want to execute javascript that's in the "onchange" attribute of an html element. So.. <input id="el" type="text" onchange="alert('test');" value="" /> Using that example I'd like to execute the al ert('test'); portion via jQuery, the problem is the .change() event handler isn't working, because I want to execute it after another element changes it's value. So.. $('#el').val('test'); This is when I'd like to execute the onchange. After that .val val has been called. Any ideas? .val() does not trigger change events. You need to do so yourself, manually. For example: $('#el').val('test')

How to determine which row has changed/updated on Google Sheets Script Editor

由 半腔热情 提交于 2019-12-02 00:43:43
For my google sheets, each row gets populated at random, but when it does get populated, I want a function to run. Each time something gets populated, it's the next row (it's not a cell or a random row). I have the onChange trigger running right now. It is set to "run FunctionA from Spreadsheet on change". In that function, how do I grab the row that has been specifically changed/updated? What is the function/method I would use to manipulate whatever that row is? I searched around but couldn't find an appropriate answer. You should use the onEdit spreadsheet event. ( https://developers.google

Onchange event is not working well

由 一个人想着一个人 提交于 2019-12-01 22:44:06
I created a following html page. <html> <head></head> <body> <input type="text" value="" id="Textbox" onchange="alert('text change');" /> <input type="button" value="" onclick="document.getElementById('Textbox').value = 'Hello';" /> </body> </html> When the entered text is inputted into the textbox, the onchange event is working well. I wrote a code that when the button is clicked, the 'Hello' text is inputted into the the textbox. But the onchange event of the textbox is not working well. How can I catch change event? Thanks. RobG Programmatically changing the value doesn't fire a change

Why is my onchange function called twice when using .focus()?

由 本小妞迷上赌 提交于 2019-12-01 22:14:06
问题 TLDR Check this example in chrome. Type someting and press tab . see one new box appear type something and press enter . see two new boxes appear, where one is expected. Intro I noticed that when using enter rather then tab to change fields, my onchange function on an input field was firing twice. This page was rather large, and still in development (read: numerous other bugs), so I've made a minimal example that shows this behaviour, and in this case it even does it on 'tab'. This is only a

HTML JavaScript onChange Handler is not called when updated programatically

由 爱⌒轻易说出口 提交于 2019-12-01 21:05:55
问题 I have found an odd anomaly with HTML text boxes and JavaScript that I have narrowed down to being a html/javascript peculiarity and I'm hoping someone can educate me on. I have downloaded and implemented a calendar plug-in that creates a simple layer with a calendar and on selection, passes the selected date back to the text box. What I want to do is catch when the text box changes (using onchange) and then call an Ajax function to update the database... The problem is, onchange never gets

Why is my onchange function called twice when using .focus()?

由 北战南征 提交于 2019-12-01 20:57:37
TLDR Check this example in chrome. Type someting and press tab . see one new box appear type something and press enter . see two new boxes appear, where one is expected. Intro I noticed that when using enter rather then tab to change fields, my onchange function on an input field was firing twice. This page was rather large, and still in development (read: numerous other bugs), so I've made a minimal example that shows this behaviour, and in this case it even does it on 'tab'. This is only a problem in Chrome as far as I can tell. What it should do I want to make a new input after something is

How to autosubmit a form in javascript?

由 拟墨画扇 提交于 2019-12-01 20:40:54
问题 I have a form with an input text field which imports data every couple of seconds and display it in the form field , let us say : <input name="code" id="code" type="text" size="64" maxlength="128" /> and a submit button and my form has the formname form1. I want the submit button to be clicked as soon as the data in the form field is changed. I did try to do the following. In the header I did add the follwoing javascript: <SCRIPT LANGUAGE="javascript"> function send_data() { document.form1

How to autosubmit a form in javascript?

由 余生长醉 提交于 2019-12-01 19:58:38
I have a form with an input text field which imports data every couple of seconds and display it in the form field , let us say : <input name="code" id="code" type="text" size="64" maxlength="128" /> and a submit button and my form has the formname form1. I want the submit button to be clicked as soon as the data in the form field is changed. I did try to do the following. In the header I did add the follwoing javascript: <SCRIPT LANGUAGE="javascript"> function send_data() { document.form1.submit(); } </SCRIPT> and on the form : <input name="code" id="code" type="text" size="64" maxlength="128

HTML JavaScript onChange Handler is not called when updated programatically

由 放肆的年华 提交于 2019-12-01 19:21:28
I have found an odd anomaly with HTML text boxes and JavaScript that I have narrowed down to being a html/javascript peculiarity and I'm hoping someone can educate me on. I have downloaded and implemented a calendar plug-in that creates a simple layer with a calendar and on selection, passes the selected date back to the text box. What I want to do is catch when the text box changes (using onchange) and then call an Ajax function to update the database... The problem is, onchange never gets called... I have been able to prove it with this very simple code below... When the button is clicked it
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