autocomplete functionality on dynamic textbox - ajax

Question

I have a scenario as follows,
Need to put autocomplete functionality on dynamic textbox with onkeyup functionality
My code is as follows, Here i have invoked a function "GetName" on buttonclick where am loadin the dynamic textboxes
function GetName() {
var dataToSend = JSON.stringify({ prefixText: $('#search').val(), Id: $("#SearchType").val()
});
$.ajax({
type: "POST",
data: { jsonData: dataToSend },
url: "GetName",
datatype: "json",
success: function (result) {
$("#ResourceNames").empty();
$("#ResourceNames").append('<table>');
$.each(result, function (i, Name) {
$("#ResourceNames").append('<tr><td ><Label>' + Name.Value + '</label></td><td> <input type="text" id="Supervisor" class = "form-control", onkeyup="GetResource(\'' + Name.Text + '\');"/></td></tr>');
});
},
error: function (xhr, status) {
alert(status);
}
})
$("#ResourceNames").append('</table>');
}
Here onkeyup event of textbox supervisor am calling the below function getresource with an argument
function GetResource(i) {
debugger;
var dataToSend = JSON.stringify({ prefixText: $("#Supervisor").val(), designation: i });
$.ajax({
url: "GetSupervisor",
data: { jsonData: dataToSend },
dataType: 'json',
type: 'POST',
success: function (data) {
$("#Supervisor").autocomplete({source:data});
});
},
error: function (error) {
alert('error; ' + error.text);
}
});
}
am not able to bind autocomplete data to dynamic textbox, can anyone help me out on the same?

Answer 1

You have several issues in your code:
First of all jQuery doesn't concatenates strings into DOM, it creates a DOMElement. So,
$("#ResourceNames").append('<table>'); will append an entire <table> element. Anything you append to #ResourceNames will be added after the table, not inside it.
The HTML you're appending contains id. So there can be multiple elements with same id which is invalid, depending on the response. It's better to use a common classname for those elements instead.
You don't need to manually handle the keyup event. You can specify the url you want to hit as the value of the source option of autocomplete, provided it returns a response suitable for the autocomplete. see this example in docs.
Instead of passing the value via the inline handler, you can store the value as a data-* attribute and access it later.
So your code should be something along:
function GetName() {
var dataToSend = JSON.stringify({ prefixText: $('#search').val(), Id: $("#SearchType").val()});
$.ajax({
type: "POST",
data: { jsonData: dataToSend },
url: "GetName",
datatype: "json",
success: function (result) {
var htmlString ="<table>";
$.each(result, function (i, Name) {
htmlString +="<tr><td ><Label>" + Name.Value + "</label></td><td> <input type='text' class = 'form-control Supervisor' data-name='"+ Name.Text + "'/></td></tr>";
});
},
error: function (xhr, status) {
alert(status);
}
})
$("#ResourceNames").append(htmlString);
$(".Supervisor")..autocomplete({
source: "GetSupervisor" // where GetSupervisor is your data source
});
}
If you want to manually send requests along with data and pass the results into the autocomplete, you can specify an function as the value of source option. (See my another answer for more info). for example:
$(".Supervisor").autocomplete({
source: function(request,response){
/*send the request here.
request.term contains the current value entered in textfield
pass the results you want to display like response(data)*/
}
});
Read the API documentation, play with it for a while and you'll be able to get it working.