This code is showing 0 but i want show enter location with back end hidden value 0
<input type="text" name="location" value="0" placeholder="Enter Location" />
How to do this please help me to fix the small issue.
Thanks
The value attribute refers to the value inside the text-field.
The placeholder is only visible if the text-field has no value.
because of this there is no way to set the value attribute and still see the
placeholder.
try using a custom attribute for your back-end code:
data-value
Remove value="0" from your markup and it will work. value="0" is like you typed 0 into it, so it does not show the placeholder
Unfortuntaly, any value added to the input, makes the placeholder dissapear. What you could do is add a value in the forms onsubmit handler if no value was entered
<form id="myForm">
<input type="text" name="location" placeholder="Enter Location" />
</form>
<script>
document.getElementById('myForm').addEventListener('submit', function() {
var input = this.getElementsByName('location')[0];
if (input.value.length === 0) input.value = '0';
})
</script>
That way a zero is sent to the server if no value was inputted.
It would probably be easier to just check serverside if the input is part of the form data.
I think one of the solutions would be to put only the place-holder in the html & assign the default value in JS(if null).
$('form').submit(function(){
var input = $('#test').val();
if(input == ''){
$('#test').val('empty');
}
alert($('#test').val());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<form>
<input id="test" type="text" placeholder="Type here" />
<input type="submit" />
</form>
Related
I am using a project code input in my form as
<input type="text" id="txtProjectCode" name="Project Code" class="form-control" maxlength="15" disabled="disabled" />
When I reset my form using my reset function
function resetRequestForm() {
$("#txtProjectCode").val(userProject);
}
I am trying to add value again through global variable, but still it is not reflecting in the form.
Please help on this
Please see this example. It is not exactly what you are doing.
But I am only showing the way how to do it.
Here It is working with disabled also, but please note that disabled fields value will not post on the server end.
var userProject = 'My Project';
function resetRequestForm() {
$("#txtProjectCode").val(userProject);
}
function getValueAgain(){
console.log($("#txtProjectCode").val());
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="text" id="txtProjectCode" name="Project Code" class="form-control" maxlength="15" readonly />
<button onClick="resetRequestForm()"; >resetRequestForm</button>
<button onClick="getValueAgain()"; >getValueAgain</button>
Disabled input text
<input type="text" id="txtProjectCode" name="Project Code" class="form-control" maxlength="15" disabled="disabled" />
Clear Button
<button class="clear_button" onclick ="return resetForm();" id="clearRequest">Clear</button>
This will retain the data in the disabled input, when
the form is cleared using a button with custom resetForm() function
the button type is set as `reset'
Note:
Data will not be retained if readonly="readonly" is used instead of disabled="disabled" (in both the cases)
no need to feed the data again as $("#txtProjectCode").val(userProject); - userProject is a global variable.
I am trying to convert text first text field value entered in inr to cad but i am unable to do so,
suppose for example:
if the text entered in first field is 1000 the it should display 20 in text field two
i have tried something like this
<label>Price</label>
<input id="price_inr" name="price_inr" type="text" class="validate" required placeholder="Price in INR" />
<input id="price_cad" name="price_cad" type="text" class="validate" required readonly="readonly" placeholder="Price in CAD" />
<!-- Script coverts INR to CAD -->
<script>
$('#price_inr').change(function() {
$('#price_cad').val($(this).val());
});
$("#price_cad").on("change", function() {
$(this).val(function(index, value) {
return value.replace(price_cad.value, price_cad.value/50);
});
});
</script>
Works fine using jquery 1.11.
The second part $("#price_cad").on("change", function() will not work because of the "readonly" attribute.
Changing it and editing will allow change back and forth
$('#price_inr').change(function() {
$('#price_cad').val($(this).val());
});
$("#price_cad").change(function() {
$('#price_inr').val($(this).val()/50);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<label>Price</label>
<input id="price_inr" name="price_inr" type="text" class="validate" required placeholder="Price in INR" />
<input id="price_cad" name="price_cad" type="text" class="validate" required placeholder="Price in CAD" />
There is no need to use two change events, you can do this in one step.
$('#price_inr').change(function () {
$('#price_cad').val($(this).val() / 50);
});
Don't forget to add prover validation to the first input field which checks if entered values is a valid number.
One more thing to note here is that change will be triggered when input looses focus. You can try using keyup instead, maybe it will better fit your requirements.
Best of luck.
I have a page with a table having some <input type="text"> fields. I have a button next to each field. I allow user to change the text of input fields. But when the user click the button next to input field, the corresponding input field's value need to be restored to default (previous) value.
I tried to make an array with index as input field's name. This array can store default values, and can be retrieved easily and restored to their corresponding fields. I tried to do this using keyup(function(), but I know that this triggers each time key is pressed.
Here is my HTML;
<input class="zx" type="text" name="qwer" value="Google" /><button class="cncl">X</button><br />
<input class="zx" type="text" name="qwer" value="Yahoo" /><button class="cncl">X</button><br />
<input class="zx" type="text" name="qwer" value="Bing" /><button class="cncl">X</button><br />
<input class="zx" type="text" name="qwer" value="Ask" /><button class="cncl">X</button><br />
Here is the fiddle.
How can I restore the default values to the fields?
You can use the defaultValue property of the input element
$('.cncl').click(function(){
$(this).prev().val(function(){
return this.defaultValue;
})
})
Demo: Fiddle
Try this, use .attr('value') to get the default value:
$('.cncl').on('click', function () {
$(this).prev().val($(this).prev().attr('value'));
});
DEMO
I have done something similair in the past. I stored the default value in an attribute of the html-tag itself.
<input class="zx" type="text" name="qwer" default-value="Google" value="Google" />
When you like to restore it you can execute
$('selector').val($('selector').attr('default-value'));
I want write a sum of values in a textbox. For that I have this two parts of code:
HTML:
<label for="test1">Value(€)</label>
<input type="text" name="test1" id="test1" value="0"><br>
Javascript:
function selected_feature(event){
//set to 0
document.getElementById('test1').value = 0;
//Loop
for(var i=0; i<elements.selectedFeatures.length; i++) {
var elements;
elements += parseFloat(elements.selectedFeatures[i].attributes.value_elements);
document.getElementById('test1').value = elements;
}
}
http://pastebin.com/N2jnaQ4x
Conclusion: I get the value 'NaN' in textbox. I have tried many things with 'parsefloat' but nothing works. If i make an 'alert (typeof elements')' in the end of function i get 'number'.
Why textbox received 'NaN'?Can anyone help me ?
Thanks
based on debugging, i think the problem is that the input textbox declaration for the value field is not declared with an integer value. I found this out in this jsFiddle perhaps try setting the value to 0 or blank in the value field of the two input text boxes in the code. instead of the textbox. you'll see that when you click the "Add the two values" it will shows us NaN.. but when the input text field has the integer value when ran.. You will see that it will add up.. I still havent figured out how to fix this - anyway, just sharing..
Try this
<input type="text" id="one" value="" />
<input type="text" id="two" value="" />
VS this
Try this
<input type="text" id="one" value="20" />
<input type="text" id="two" value="30" />
in the below
JSFiddle Code Here
Signing Out - Lakhi Calantoc of Nouvre Technologies
I have a question regarding JSP. I have two textboxes. When I type the value in the first text box, it should replicate automatically in the second text box.
<input type="text"
class="formtext"
name="List.lItemList<c:out value='[${status.index}]'/>.value1"
value="0.0"
onChange="validateOnChange(this,'desc','minvalue','maxValue','float')">
<input type="text"
class="formtext"
name="List.clItemList<c:out value='[${status.index}]'/>.value2"
value="0.0"
onChange="validateOnChange(this,'desc','minvalue','maxvalue','float')">
Assuming that the first box has ID input1 and the second input2 (so you'll have to add those IDs), you can do it like this:
document.getElementById('input1').onkeyup = function () {
document.getElementById('input2').value = this.value;
};
You can do this using JavaScript. Attach an keyup event handler on the first textbox which should copy its value to the second one.
<input type="text" id="t1" onkeyup="document.getElementById('t2').value=this.value" />
<input type="text" id="t2" />