jsTree - is_parent() returning wrong value

I'm requesting data from a remote server with json return in format :

[

{"id":"1", "parent": "#", "text" : "Parent1"},

{"id":"2", "parent": 1, "text" : "Child1"}

{"id":"3", "parent": 2, "text" : "Child12"}

{"id":"4", "parent": 1, "text" : "Child2"}

{"id":"5", "parent": 1, "text" : "Child3"}

{"id":"6", "parent": 4, "text" : "Child21"}

]

I would like to check if the selected node is a parent. I use this code:

$('#treeview').on("select_node.jstree", function (e, data) {

        var isParent = data.instance.is_parent(); 

        alert(isParent)

    });

It always returns false even when I click on PARENT.

What am I missing here ?

UPDATE
This is how I get solved the issue. But I still wonder why the methods is_parent() and is_leaf() are not working

var isParent = (data.node.children.length > 0);

edited Nov 23 '18 at 8:12

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

see stackoverflow.com/questions/30782213/…

– Tamil Selvan C
Nov 23 '18 at 7:00

@TamilSelvanC I checked the link before but using var isParent = data.instance.is_parent(); alert(isParent) does not solve the problem

– Kwaye Kant
Nov 23 '18 at 7:13

Hi, i updated my answer. Please check

– Tamil Selvan C
Nov 23 '18 at 7:28

I got it. Thanks

– Kwaye Kant
Nov 23 '18 at 8:13

add a comment |

I'm requesting data from a remote server with json return in format :

[

{"id":"1", "parent": "#", "text" : "Parent1"},

{"id":"2", "parent": 1, "text" : "Child1"}

{"id":"3", "parent": 2, "text" : "Child12"}

{"id":"4", "parent": 1, "text" : "Child2"}

{"id":"5", "parent": 1, "text" : "Child3"}

{"id":"6", "parent": 4, "text" : "Child21"}

]

I would like to check if the selected node is a parent. I use this code:

$('#treeview').on("select_node.jstree", function (e, data) {

        var isParent = data.instance.is_parent(); 

        alert(isParent)

    });

It always returns false even when I click on PARENT.

What am I missing here ?

UPDATE
This is how I get solved the issue. But I still wonder why the methods is_parent() and is_leaf() are not working

var isParent = (data.node.children.length > 0);

edited Nov 23 '18 at 8:12

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

see stackoverflow.com/questions/30782213/…

– Tamil Selvan C
Nov 23 '18 at 7:00

@TamilSelvanC I checked the link before but using var isParent = data.instance.is_parent(); alert(isParent) does not solve the problem

– Kwaye Kant
Nov 23 '18 at 7:13

Hi, i updated my answer. Please check

– Tamil Selvan C
Nov 23 '18 at 7:28

I got it. Thanks

– Kwaye Kant
Nov 23 '18 at 8:13

add a comment |

I'm requesting data from a remote server with json return in format :

[

{"id":"1", "parent": "#", "text" : "Parent1"},

{"id":"2", "parent": 1, "text" : "Child1"}

{"id":"3", "parent": 2, "text" : "Child12"}

{"id":"4", "parent": 1, "text" : "Child2"}

{"id":"5", "parent": 1, "text" : "Child3"}

{"id":"6", "parent": 4, "text" : "Child21"}

]

I would like to check if the selected node is a parent. I use this code:

$('#treeview').on("select_node.jstree", function (e, data) {

        var isParent = data.instance.is_parent(); 

        alert(isParent)

    });

It always returns false even when I click on PARENT.

What am I missing here ?

UPDATE
This is how I get solved the issue. But I still wonder why the methods is_parent() and is_leaf() are not working

var isParent = (data.node.children.length > 0);

edited Nov 23 '18 at 8:12

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

I'm requesting data from a remote server with json return in format :

[

{"id":"1", "parent": "#", "text" : "Parent1"},

{"id":"2", "parent": 1, "text" : "Child1"}

{"id":"3", "parent": 2, "text" : "Child12"}

{"id":"4", "parent": 1, "text" : "Child2"}

{"id":"5", "parent": 1, "text" : "Child3"}

{"id":"6", "parent": 4, "text" : "Child21"}

]

I would like to check if the selected node is a parent. I use this code:

$('#treeview').on("select_node.jstree", function (e, data) {

        var isParent = data.instance.is_parent(); 

        alert(isParent)

    });

It always returns false even when I click on PARENT.

What am I missing here ?

UPDATE
This is how I get solved the issue. But I still wonder why the methods is_parent() and is_leaf() are not working

var isParent = (data.node.children.length > 0);

javascript json jstree

edited Nov 23 '18 at 8:12

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

edited Nov 23 '18 at 8:12

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

edited Nov 23 '18 at 8:12

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

asked Nov 23 '18 at 6:33

Kwaye Kant

3616

see stackoverflow.com/questions/30782213/…

– Tamil Selvan C
Nov 23 '18 at 7:00

@TamilSelvanC I checked the link before but using var isParent = data.instance.is_parent(); alert(isParent) does not solve the problem

– Kwaye Kant
Nov 23 '18 at 7:13

Hi, i updated my answer. Please check

– Tamil Selvan C
Nov 23 '18 at 7:28

I got it. Thanks

– Kwaye Kant
Nov 23 '18 at 8:13

add a comment |

see stackoverflow.com/questions/30782213/…

– Tamil Selvan C
Nov 23 '18 at 7:00

@TamilSelvanC I checked the link before but using var isParent = data.instance.is_parent(); alert(isParent) does not solve the problem

– Kwaye Kant
Nov 23 '18 at 7:13

Hi, i updated my answer. Please check

– Tamil Selvan C
Nov 23 '18 at 7:28

I got it. Thanks

– Kwaye Kant
Nov 23 '18 at 8:13

see stackoverflow.com/questions/30782213/…

– Tamil Selvan C
Nov 23 '18 at 7:00

@TamilSelvanC I checked the link before but using var isParent = data.instance.is_parent(); alert(isParent) does not solve the problem

– Kwaye Kant
Nov 23 '18 at 7:13

Hi, i updated my answer. Please check

– Tamil Selvan C
Nov 23 '18 at 7:28

I got it. Thanks

– Kwaye Kant
Nov 23 '18 at 8:13

add a comment |

1 Answer
1

active

oldest

votes

To get parent

use

var isParent = (data.node.children.length > 0);

alert(isParent );

$('#treeview').jstree({

  'core': {

    'data': [{

        "id": "1",

        "parent": "#",

        "text": "Parent1"

      }, {

        "id": "2",

        "parent": 1,

        "text": "Child1"

      },

      {

        "id": "21",

        "parent": 2,

        "text": "Child1"

      },

      {

        "id": "3",

        "parent": 2,

        "text": "Child12"

      }, {

        "id": "4",

        "parent": 1,

        "text": "Child2"

      }, {

        "id": "5",

        "parent": 1,

        "text": "Child3"

      },

      {

        "id": "6",

        "parent": 4,

        "text": "Child21"

      },

      {

        "id": "7",

        "parent": '#',

        "text": "Parent 2"

      },

      {

        "id": "8",

        "parent": 7,

        "text": "Child"

      }

    ]

  }

});



$('#treeview').on("select_node.jstree", function(e, data) {

  // var isParent = data.instance.is_parent(data);

  // If you need to check if a node is a root node you can use:

  var isParent = (data.node.children.length > 0);

  console.log(data.node);

  alert(isParent)

});

<link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>



<div id="treeview"></div>

edited Nov 23 '18 at 7:28

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

Thank you for your reply @Tamil but this does not solve the problem. It only works on root nodes.For any node in the tree I want to know if it is a parent and then get all it's childreen

– Kwaye Kant
Nov 23 '18 at 7:10

1

try var isParent = (data.node.children.length > 0); alert(isParent );

– Tamil Selvan C
Nov 23 '18 at 7:29

add a comment |

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To get parent

use

var isParent = (data.node.children.length > 0);

alert(isParent );

$('#treeview').jstree({

  'core': {

    'data': [{

        "id": "1",

        "parent": "#",

        "text": "Parent1"

      }, {

        "id": "2",

        "parent": 1,

        "text": "Child1"

      },

      {

        "id": "21",

        "parent": 2,

        "text": "Child1"

      },

      {

        "id": "3",

        "parent": 2,

        "text": "Child12"

      }, {

        "id": "4",

        "parent": 1,

        "text": "Child2"

      }, {

        "id": "5",

        "parent": 1,

        "text": "Child3"

      },

      {

        "id": "6",

        "parent": 4,

        "text": "Child21"

      },

      {

        "id": "7",

        "parent": '#',

        "text": "Parent 2"

      },

      {

        "id": "8",

        "parent": 7,

        "text": "Child"

      }

    ]

  }

});



$('#treeview').on("select_node.jstree", function(e, data) {

  // var isParent = data.instance.is_parent(data);

  // If you need to check if a node is a root node you can use:

  var isParent = (data.node.children.length > 0);

  console.log(data.node);

  alert(isParent)

});

<link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>



<div id="treeview"></div>

edited Nov 23 '18 at 7:28

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

Thank you for your reply @Tamil but this does not solve the problem. It only works on root nodes.For any node in the tree I want to know if it is a parent and then get all it's childreen

– Kwaye Kant
Nov 23 '18 at 7:10

1

try var isParent = (data.node.children.length > 0); alert(isParent );

– Tamil Selvan C
Nov 23 '18 at 7:29

add a comment |

To get parent

use

var isParent = (data.node.children.length > 0);

alert(isParent );

$('#treeview').jstree({

  'core': {

    'data': [{

        "id": "1",

        "parent": "#",

        "text": "Parent1"

      }, {

        "id": "2",

        "parent": 1,

        "text": "Child1"

      },

      {

        "id": "21",

        "parent": 2,

        "text": "Child1"

      },

      {

        "id": "3",

        "parent": 2,

        "text": "Child12"

      }, {

        "id": "4",

        "parent": 1,

        "text": "Child2"

      }, {

        "id": "5",

        "parent": 1,

        "text": "Child3"

      },

      {

        "id": "6",

        "parent": 4,

        "text": "Child21"

      },

      {

        "id": "7",

        "parent": '#',

        "text": "Parent 2"

      },

      {

        "id": "8",

        "parent": 7,

        "text": "Child"

      }

    ]

  }

});



$('#treeview').on("select_node.jstree", function(e, data) {

  // var isParent = data.instance.is_parent(data);

  // If you need to check if a node is a root node you can use:

  var isParent = (data.node.children.length > 0);

  console.log(data.node);

  alert(isParent)

});

<link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>



<div id="treeview"></div>

edited Nov 23 '18 at 7:28

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

Thank you for your reply @Tamil but this does not solve the problem. It only works on root nodes.For any node in the tree I want to know if it is a parent and then get all it's childreen

– Kwaye Kant
Nov 23 '18 at 7:10

1

try var isParent = (data.node.children.length > 0); alert(isParent );

– Tamil Selvan C
Nov 23 '18 at 7:29

add a comment |

To get parent

use

var isParent = (data.node.children.length > 0);

alert(isParent );

$('#treeview').jstree({

  'core': {

    'data': [{

        "id": "1",

        "parent": "#",

        "text": "Parent1"

      }, {

        "id": "2",

        "parent": 1,

        "text": "Child1"

      },

      {

        "id": "21",

        "parent": 2,

        "text": "Child1"

      },

      {

        "id": "3",

        "parent": 2,

        "text": "Child12"

      }, {

        "id": "4",

        "parent": 1,

        "text": "Child2"

      }, {

        "id": "5",

        "parent": 1,

        "text": "Child3"

      },

      {

        "id": "6",

        "parent": 4,

        "text": "Child21"

      },

      {

        "id": "7",

        "parent": '#',

        "text": "Parent 2"

      },

      {

        "id": "8",

        "parent": 7,

        "text": "Child"

      }

    ]

  }

});



$('#treeview').on("select_node.jstree", function(e, data) {

  // var isParent = data.instance.is_parent(data);

  // If you need to check if a node is a root node you can use:

  var isParent = (data.node.children.length > 0);

  console.log(data.node);

  alert(isParent)

});

<link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>



<div id="treeview"></div>

edited Nov 23 '18 at 7:28

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

To get parent

use

var isParent = (data.node.children.length > 0);

alert(isParent );

$('#treeview').jstree({

  'core': {

    'data': [{

        "id": "1",

        "parent": "#",

        "text": "Parent1"

      }, {

        "id": "2",

        "parent": 1,

        "text": "Child1"

      },

      {

        "id": "21",

        "parent": 2,

        "text": "Child1"

      },

      {

        "id": "3",

        "parent": 2,

        "text": "Child12"

      }, {

        "id": "4",

        "parent": 1,

        "text": "Child2"

      }, {

        "id": "5",

        "parent": 1,

        "text": "Child3"

      },

      {

        "id": "6",

        "parent": 4,

        "text": "Child21"

      },

      {

        "id": "7",

        "parent": '#',

        "text": "Parent 2"

      },

      {

        "id": "8",

        "parent": 7,

        "text": "Child"

      }

    ]

  }

});



$('#treeview').on("select_node.jstree", function(e, data) {

  // var isParent = data.instance.is_parent(data);

  // If you need to check if a node is a root node you can use:

  var isParent = (data.node.children.length > 0);

  console.log(data.node);

  alert(isParent)

});

<link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>



<div id="treeview"></div>

$('#treeview').jstree({

  'core': {

    'data': [{

        "id": "1",

        "parent": "#",

        "text": "Parent1"

      }, {

        "id": "2",

        "parent": 1,

        "text": "Child1"

      },

      {

        "id": "21",

        "parent": 2,

        "text": "Child1"

      },

      {

        "id": "3",

        "parent": 2,

        "text": "Child12"

      }, {

        "id": "4",

        "parent": 1,

        "text": "Child2"

      }, {

        "id": "5",

        "parent": 1,

        "text": "Child3"

      },

      {

        "id": "6",

        "parent": 4,

        "text": "Child21"

      },

      {

        "id": "7",

        "parent": '#',

        "text": "Parent 2"

      },

      {

        "id": "8",

        "parent": 7,

        "text": "Child"

      }

    ]

  }

});



$('#treeview').on("select_node.jstree", function(e, data) {

  // var isParent = data.instance.is_parent(data);

  // If you need to check if a node is a root node you can use:

  var isParent = (data.node.children.length > 0);

  console.log(data.node);

  alert(isParent)

});

<link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>



<div id="treeview"></div>

$('#treeview').jstree({

  'core': {

    'data': [{

        "id": "1",

        "parent": "#",

        "text": "Parent1"

      }, {

        "id": "2",

        "parent": 1,

        "text": "Child1"

      },

      {

        "id": "21",

        "parent": 2,

        "text": "Child1"

      },

      {

        "id": "3",

        "parent": 2,

        "text": "Child12"

      }, {

        "id": "4",

        "parent": 1,

        "text": "Child2"

      }, {

        "id": "5",

        "parent": 1,

        "text": "Child3"

      },

      {

        "id": "6",

        "parent": 4,

        "text": "Child21"

      },

      {

        "id": "7",

        "parent": '#',

        "text": "Parent 2"

      },

      {

        "id": "8",

        "parent": 7,

        "text": "Child"

      }

    ]

  }

});



$('#treeview').on("select_node.jstree", function(e, data) {

  // var isParent = data.instance.is_parent(data);

  // If you need to check if a node is a root node you can use:

  var isParent = (data.node.children.length > 0);

  console.log(data.node);

  alert(isParent)

});

<link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>



<div id="treeview"></div>

edited Nov 23 '18 at 7:28

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

edited Nov 23 '18 at 7:28

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

answered Nov 23 '18 at 6:52

Tamil Selvan C

14.5k93659

Thank you for your reply @Tamil but this does not solve the problem. It only works on root nodes.For any node in the tree I want to know if it is a parent and then get all it's childreen

– Kwaye Kant
Nov 23 '18 at 7:10

1

try var isParent = (data.node.children.length > 0); alert(isParent );

– Tamil Selvan C
Nov 23 '18 at 7:29

add a comment |

Thank you for your reply @Tamil but this does not solve the problem. It only works on root nodes.For any node in the tree I want to know if it is a parent and then get all it's childreen

– Kwaye Kant
Nov 23 '18 at 7:10

1

try var isParent = (data.node.children.length > 0); alert(isParent );

– Tamil Selvan C
Nov 23 '18 at 7:29

Thank you for your reply @Tamil but this does not solve the problem. It only works on root nodes.For any node in the tree I want to know if it is a parent and then get all it's childreen

– Kwaye Kant
Nov 23 '18 at 7:10

try var isParent = (data.node.children.length > 0); alert(isParent );

– Tamil Selvan C
Nov 23 '18 at 7:29

add a comment |

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