Mixing
Enabled and Disabled Previous button loads at The same Time via Reactjs
-1
I used The code below to display information to database via Reactjs. When I click the next button, it works. No what to add previous button.
Here is what am trying to do.
On the First data load, I need to disable the Previous button and on Next data load, I need to enable the previous button.
The problem am having is that both enabled and disabled previous button are loaded at the same time.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<style>
.pic{
background:blue; color:white;}
</style>
<script src="build/react.min.js"></script>
<script src="build/react-dom.min.js"></script>
<script src="build/browser.min.js"></script>
<script src="build/jquery.min.js"></script>
<div id="app"></div>
<script type="text/babel">
class Application extends React.Component {
constructor(props) {
super(props)
this.state = {rec : [
{ "name" : "Tony", "Age" : "18"},
{ "name" : "John", "Age" : "21" },
{ "name" : "Luke", "Age" : "78" },
{ "name" : "Mark", "Age" : "90" },
{ "name" : "Jame", "Age" : "87" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Biggard", "Age" : "19" },
{ "name" : "tom", "Age" : "89" },
],
limit : 2
};
this.next = this.next.bind(this);
this.previous = this.previous.bind(this);
}
next() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit + 2 });
}
}
previous() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit - 2 });
}
}
render() {
//let prevLink = parseInt( 2) - 1;
//let prevRec = 2;
const prevRec = this.state.rec.length;
return <div className="container">
<div>
<h3>List of Records</h3>
<ul>
{this.state.rec.slice(0,this.state.limit).map((obj, i) =>
<li key={i}>{obj.name} - {obj.Age}</li>
)}
</ul>
</div>
<ul className="pager">
<li>
{prevRec == 2 ? // Disable previous button if showing the first two loaded Data
<a >Disabled Previous</a>
:
<span>Disabled Previous </span>
}
</li>
<li>
{prevRec > 2 ? // Enable Active Previous button on next data load
<a onClick={this.previous}>Enable Previous </a>
:
<span>Enable Previous</span>
}
</li>
<a onClick={this.next}>
Next
</a>
</ul>
</div>;
}
}
ReactDOM.render(<Application />, document.getElementById('app'));
</script>
</body>
</html>
reactjs
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
add a comment |
-1
I used The code below to display information to database via Reactjs. When I click the next button, it works. No what to add previous button.
Here is what am trying to do.
On the First data load, I need to disable the Previous button and on Next data load, I need to enable the previous button.
The problem am having is that both enabled and disabled previous button are loaded at the same time.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<style>
.pic{
background:blue; color:white;}
</style>
<script src="build/react.min.js"></script>
<script src="build/react-dom.min.js"></script>
<script src="build/browser.min.js"></script>
<script src="build/jquery.min.js"></script>
<div id="app"></div>
<script type="text/babel">
class Application extends React.Component {
constructor(props) {
super(props)
this.state = {rec : [
{ "name" : "Tony", "Age" : "18"},
{ "name" : "John", "Age" : "21" },
{ "name" : "Luke", "Age" : "78" },
{ "name" : "Mark", "Age" : "90" },
{ "name" : "Jame", "Age" : "87" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Biggard", "Age" : "19" },
{ "name" : "tom", "Age" : "89" },
],
limit : 2
};
this.next = this.next.bind(this);
this.previous = this.previous.bind(this);
}
next() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit + 2 });
}
}
previous() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit - 2 });
}
}
render() {
//let prevLink = parseInt( 2) - 1;
//let prevRec = 2;
const prevRec = this.state.rec.length;
return <div className="container">
<div>
<h3>List of Records</h3>
<ul>
{this.state.rec.slice(0,this.state.limit).map((obj, i) =>
<li key={i}>{obj.name} - {obj.Age}</li>
)}
</ul>
</div>
<ul className="pager">
<li>
{prevRec == 2 ? // Disable previous button if showing the first two loaded Data
<a >Disabled Previous</a>
:
<span>Disabled Previous </span>
}
</li>
<li>
{prevRec > 2 ? // Enable Active Previous button on next data load
<a onClick={this.previous}>Enable Previous </a>
:
<span>Enable Previous</span>
}
</li>
<a onClick={this.next}>
Next
</a>
</ul>
</div>;
}
}
ReactDOM.render(<Application />, document.getElementById('app'));
</script>
</body>
</html>
reactjs
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
add a comment |
-1
-1
-1
I used The code below to display information to database via Reactjs. When I click the next button, it works. No what to add previous button.
Here is what am trying to do.
On the First data load, I need to disable the Previous button and on Next data load, I need to enable the previous button.
The problem am having is that both enabled and disabled previous button are loaded at the same time.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<style>
.pic{
background:blue; color:white;}
</style>
<script src="build/react.min.js"></script>
<script src="build/react-dom.min.js"></script>
<script src="build/browser.min.js"></script>
<script src="build/jquery.min.js"></script>
<div id="app"></div>
<script type="text/babel">
class Application extends React.Component {
constructor(props) {
super(props)
this.state = {rec : [
{ "name" : "Tony", "Age" : "18"},
{ "name" : "John", "Age" : "21" },
{ "name" : "Luke", "Age" : "78" },
{ "name" : "Mark", "Age" : "90" },
{ "name" : "Jame", "Age" : "87" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Biggard", "Age" : "19" },
{ "name" : "tom", "Age" : "89" },
],
limit : 2
};
this.next = this.next.bind(this);
this.previous = this.previous.bind(this);
}
next() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit + 2 });
}
}
previous() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit - 2 });
}
}
render() {
//let prevLink = parseInt( 2) - 1;
//let prevRec = 2;
const prevRec = this.state.rec.length;
return <div className="container">
<div>
<h3>List of Records</h3>
<ul>
{this.state.rec.slice(0,this.state.limit).map((obj, i) =>
<li key={i}>{obj.name} - {obj.Age}</li>
)}
</ul>
</div>
<ul className="pager">
<li>
{prevRec == 2 ? // Disable previous button if showing the first two loaded Data
<a >Disabled Previous</a>
:
<span>Disabled Previous </span>
}
</li>
<li>
{prevRec > 2 ? // Enable Active Previous button on next data load
<a onClick={this.previous}>Enable Previous </a>
:
<span>Enable Previous</span>
}
</li>
<a onClick={this.next}>
Next
</a>
</ul>
</div>;
}
}
ReactDOM.render(<Application />, document.getElementById('app'));
</script>
</body>
</html>
reactjs
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
I used The code below to display information to database via Reactjs. When I click the next button, it works. No what to add previous button.
Here is what am trying to do.
On the First data load, I need to disable the Previous button and on Next data load, I need to enable the previous button.
The problem am having is that both enabled and disabled previous button are loaded at the same time.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<style>
.pic{
background:blue; color:white;}
</style>
<script src="build/react.min.js"></script>
<script src="build/react-dom.min.js"></script>
<script src="build/browser.min.js"></script>
<script src="build/jquery.min.js"></script>
<div id="app"></div>
<script type="text/babel">
class Application extends React.Component {
constructor(props) {
super(props)
this.state = {rec : [
{ "name" : "Tony", "Age" : "18"},
{ "name" : "John", "Age" : "21" },
{ "name" : "Luke", "Age" : "78" },
{ "name" : "Mark", "Age" : "90" },
{ "name" : "Jame", "Age" : "87" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Franco", "Age" : "34" },
{ "name" : "Biggard", "Age" : "19" },
{ "name" : "tom", "Age" : "89" },
],
limit : 2
};
this.next = this.next.bind(this);
this.previous = this.previous.bind(this);
}
next() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit + 2 });
}
}
previous() {
const recLength = this.state.rec.length;
const currentLimit = this.state.limit;
if (currentLimit < recLength) {
this.setState({ limit: currentLimit - 2 });
}
}
render() {
//let prevLink = parseInt( 2) - 1;
//let prevRec = 2;
const prevRec = this.state.rec.length;
return <div className="container">
<div>
<h3>List of Records</h3>
<ul>
{this.state.rec.slice(0,this.state.limit).map((obj, i) =>
<li key={i}>{obj.name} - {obj.Age}</li>
)}
</ul>
</div>
<ul className="pager">
<li>
{prevRec == 2 ? // Disable previous button if showing the first two loaded Data
<a >Disabled Previous</a>
:
<span>Disabled Previous </span>
}
</li>
<li>
{prevRec > 2 ? // Enable Active Previous button on next data load
<a onClick={this.previous}>Enable Previous </a>
:
<span>Enable Previous</span>
}
</li>
<a onClick={this.next}>
Next
</a>
</ul>
</div>;
}
}
ReactDOM.render(<Application />, document.getElementById('app'));
</script>
</body>
</html>
reactjs
reactjs
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
asked Nov 20 '18 at 22:22
jmarkattijmarkatti
15219
15219
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
0
This is how I was able to solve the Problem. I first check the records in the array and discovered that I have 9 records already
and then I have to get the length of records in the array as per
const prevRec = this.state.rec.length;
Finally, the code below solve my issue
const prevRec = const prevRec = this.state.rec.length;
{prevRec <= 9 && // Disable Previous if records in the array is less than or equal to 9
<h2>
<a>Disable Previous</a>
</h2>
}
{prevRec > 9 &&
<h2>
<a onClick={this.previous}>Enable Previous</a>
</h2>
}
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53402492%2fenabled-and-disabled-previous-button-loads-at-the-same-time-via-reactjs%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
This is how I was able to solve the Problem. I first check the records in the array and discovered that I have 9 records already
and then I have to get the length of records in the array as per
const prevRec = this.state.rec.length;
Finally, the code below solve my issue
const prevRec = const prevRec = this.state.rec.length;
{prevRec <= 9 && // Disable Previous if records in the array is less than or equal to 9
<h2>
<a>Disable Previous</a>
</h2>
}
{prevRec > 9 &&
<h2>
<a onClick={this.previous}>Enable Previous</a>
</h2>
}
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
add a comment |
0
This is how I was able to solve the Problem. I first check the records in the array and discovered that I have 9 records already
and then I have to get the length of records in the array as per
const prevRec = this.state.rec.length;
Finally, the code below solve my issue
const prevRec = const prevRec = this.state.rec.length;
{prevRec <= 9 && // Disable Previous if records in the array is less than or equal to 9
<h2>
<a>Disable Previous</a>
</h2>
}
{prevRec > 9 &&
<h2>
<a onClick={this.previous}>Enable Previous</a>
</h2>
}
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
add a comment |
0
0
0
This is how I was able to solve the Problem. I first check the records in the array and discovered that I have 9 records already
and then I have to get the length of records in the array as per
const prevRec = this.state.rec.length;
Finally, the code below solve my issue
const prevRec = const prevRec = this.state.rec.length;
{prevRec <= 9 && // Disable Previous if records in the array is less than or equal to 9
<h2>
<a>Disable Previous</a>
</h2>
}
{prevRec > 9 &&
<h2>
<a onClick={this.previous}>Enable Previous</a>
</h2>
}
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
This is how I was able to solve the Problem. I first check the records in the array and discovered that I have 9 records already
and then I have to get the length of records in the array as per
const prevRec = this.state.rec.length;
Finally, the code below solve my issue
const prevRec = const prevRec = this.state.rec.length;
{prevRec <= 9 && // Disable Previous if records in the array is less than or equal to 9
<h2>
<a>Disable Previous</a>
</h2>
}
{prevRec > 9 &&
<h2>
<a onClick={this.previous}>Enable Previous</a>
</h2>
}
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
answered Nov 21 '18 at 20:58
jmarkattijmarkatti
15219
15219
add a comment |
add a comment |
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53402492%2fenabled-and-disabled-previous-button-loads-at-the-same-time-via-reactjs%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
