how to pass four values or four arguments from four dropdown to ajax?
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I am trying to pass 4 arguments from a drop-down to Ajax but i get the following error:
Uncaught TypeError: Cannot set property 'innerHTML' of null at
XMLHttpRequest.xmlhttp.onreadystatechange
function showreports() {
var str = document.getElementById("p").value;
var str1 = document.getElementById("t").value;
var str2 = document.getElementById("sem").value;
var str3 = document.getElementById("ses").value;
if (str == 0) {
document.getElementById("txtHint").innerHTML = "";
return;
} else {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("txtHint").innerHTML = this.responseText;
}
};
xmlhttp.open("GET", "get_reports.php?p=" + str, true);
xmlhttp.send();
}
}
javascript ajax
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
asked Nov 8 at 9:54
Nouman Haroon
11
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
up vote
0
down vote
favorite
I am trying to pass 4 arguments from a drop-down to Ajax but i get the following error:
Uncaught TypeError: Cannot set property 'innerHTML' of null at
XMLHttpRequest.xmlhttp.onreadystatechange
function showreports() {
var str = document.getElementById("p").value;
var str1 = document.getElementById("t").value;
var str2 = document.getElementById("sem").value;
var str3 = document.getElementById("ses").value;
if (str == 0) {
document.getElementById("txtHint").innerHTML = "";
return;
} else {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("txtHint").innerHTML = this.responseText;
}
};
xmlhttp.open("GET", "get_reports.php?p=" + str, true);
xmlhttp.send();
}
}
javascript ajax
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
asked Nov 8 at 9:54
Nouman Haroon
11
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Where is your html? Seems you haven't definedtxtHint
– B001ᛦ
Nov 8 at 9:57
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am trying to pass 4 arguments from a drop-down to Ajax but i get the following error:
Uncaught TypeError: Cannot set property 'innerHTML' of null at
XMLHttpRequest.xmlhttp.onreadystatechange
function showreports() {
var str = document.getElementById("p").value;
var str1 = document.getElementById("t").value;
var str2 = document.getElementById("sem").value;
var str3 = document.getElementById("ses").value;
if (str == 0) {
document.getElementById("txtHint").innerHTML = "";
return;
} else {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("txtHint").innerHTML = this.responseText;
}
};
xmlhttp.open("GET", "get_reports.php?p=" + str, true);
xmlhttp.send();
}
}
javascript ajax
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
asked Nov 8 at 9:54
Nouman Haroon
11
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am trying to pass 4 arguments from a drop-down to Ajax but i get the following error:
Uncaught TypeError: Cannot set property 'innerHTML' of null at
XMLHttpRequest.xmlhttp.onreadystatechange
function showreports() {
var str = document.getElementById("p").value;
var str1 = document.getElementById("t").value;
var str2 = document.getElementById("sem").value;
var str3 = document.getElementById("ses").value;
if (str == 0) {
document.getElementById("txtHint").innerHTML = "";
return;
} else {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("txtHint").innerHTML = this.responseText;
}
};
xmlhttp.open("GET", "get_reports.php?p=" + str, true);
xmlhttp.send();
}
}
javascript ajax
javascript ajax
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
asked Nov 8 at 9:54
Nouman Haroon
11
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
asked Nov 8 at 9:54
Nouman Haroon
11
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
edited Nov 8 at 10:06
Bartosz Zasada
2,41521021
2,41521021
asked Nov 8 at 9:54
Nouman Haroon
11
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Nov 8 at 9:54
Nouman Haroon
11
asked Nov 8 at 9:54
Nouman Haroon
11
11
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Nouman Haroon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
Where is your html? Seems you haven't definedtxtHint
– B001ᛦ
Nov 8 at 9:57
add a comment |
1
Where is your html? Seems you haven't definedtxtHint
– B001ᛦ
Nov 8 at 9:57
1
1
Where is your html? Seems you haven't defined
txtHint– B001ᛦ
Nov 8 at 9:57
Where is your html? Seems you haven't defined
txtHint– B001ᛦ
Nov 8 at 9:57
add a comment |
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1
Where is your html? Seems you haven't defined
txtHint– B001ᛦ
Nov 8 at 9:57