jstree - stop single expanded node from collapsing










2














Using jstree is it possible to block the collapse of a single specific node?



I have a tree structure which can be expanded/collapsed at will... but I have certain nodes that should always be open and not allow the user to collapse them.



Is there a way to block the collapse (maybe through the data-jstree attribute on the <li>)... and if possible, a way to also remove the triangle against the item?



I've tried hooking into the close_node.jstree event but neither using a return false or e.preventDefault() is stopping it happening.



In the following example, I want the "Item 2 - Must Keep Open" to ALWAYS be open, and not allow the user to hide the "Always Visible" item...






$(function() 
$("#treeRoot").jstree(
core:
themes:
variant: "small"


);
);

<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="treeRoot">
<ul>
<li data-jstree='"opened":true'>Root
<ul>
<li>Item 1</li>
<li data-jstree='"opened":true'>Item 2 - Must keep open
<ul>
<li>Always Visible</li>
</ul>
</li>
<li>Item 3</li>
</ul>
</li>
</ul>
</div>












share|improve this question


























    2














    Using jstree is it possible to block the collapse of a single specific node?



    I have a tree structure which can be expanded/collapsed at will... but I have certain nodes that should always be open and not allow the user to collapse them.



    Is there a way to block the collapse (maybe through the data-jstree attribute on the <li>)... and if possible, a way to also remove the triangle against the item?



    I've tried hooking into the close_node.jstree event but neither using a return false or e.preventDefault() is stopping it happening.



    In the following example, I want the "Item 2 - Must Keep Open" to ALWAYS be open, and not allow the user to hide the "Always Visible" item...






    $(function() 
    $("#treeRoot").jstree(
    core:
    themes:
    variant: "small"


    );
    );

    <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="treeRoot">
    <ul>
    <li data-jstree='"opened":true'>Root
    <ul>
    <li>Item 1</li>
    <li data-jstree='"opened":true'>Item 2 - Must keep open
    <ul>
    <li>Always Visible</li>
    </ul>
    </li>
    <li>Item 3</li>
    </ul>
    </li>
    </ul>
    </div>












    share|improve this question
























      2












      2








      2







      Using jstree is it possible to block the collapse of a single specific node?



      I have a tree structure which can be expanded/collapsed at will... but I have certain nodes that should always be open and not allow the user to collapse them.



      Is there a way to block the collapse (maybe through the data-jstree attribute on the <li>)... and if possible, a way to also remove the triangle against the item?



      I've tried hooking into the close_node.jstree event but neither using a return false or e.preventDefault() is stopping it happening.



      In the following example, I want the "Item 2 - Must Keep Open" to ALWAYS be open, and not allow the user to hide the "Always Visible" item...






      $(function() 
      $("#treeRoot").jstree(
      core:
      themes:
      variant: "small"


      );
      );

      <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="treeRoot">
      <ul>
      <li data-jstree='"opened":true'>Root
      <ul>
      <li>Item 1</li>
      <li data-jstree='"opened":true'>Item 2 - Must keep open
      <ul>
      <li>Always Visible</li>
      </ul>
      </li>
      <li>Item 3</li>
      </ul>
      </li>
      </ul>
      </div>












      share|improve this question













      Using jstree is it possible to block the collapse of a single specific node?



      I have a tree structure which can be expanded/collapsed at will... but I have certain nodes that should always be open and not allow the user to collapse them.



      Is there a way to block the collapse (maybe through the data-jstree attribute on the <li>)... and if possible, a way to also remove the triangle against the item?



      I've tried hooking into the close_node.jstree event but neither using a return false or e.preventDefault() is stopping it happening.



      In the following example, I want the "Item 2 - Must Keep Open" to ALWAYS be open, and not allow the user to hide the "Always Visible" item...






      $(function() 
      $("#treeRoot").jstree(
      core:
      themes:
      variant: "small"


      );
      );

      <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="treeRoot">
      <ul>
      <li data-jstree='"opened":true'>Root
      <ul>
      <li>Item 1</li>
      <li data-jstree='"opened":true'>Item 2 - Must keep open
      <ul>
      <li>Always Visible</li>
      </ul>
      </li>
      <li>Item 3</li>
      </ul>
      </li>
      </ul>
      </div>








      $(function() 
      $("#treeRoot").jstree(
      core:
      themes:
      variant: "small"


      );
      );

      <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="treeRoot">
      <ul>
      <li data-jstree='"opened":true'>Root
      <ul>
      <li>Item 1</li>
      <li data-jstree='"opened":true'>Item 2 - Must keep open
      <ul>
      <li>Always Visible</li>
      </ul>
      </li>
      <li>Item 3</li>
      </ul>
      </li>
      </ul>
      </div>





      $(function() 
      $("#treeRoot").jstree(
      core:
      themes:
      variant: "small"


      );
      );

      <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="treeRoot">
      <ul>
      <li data-jstree='"opened":true'>Root
      <ul>
      <li>Item 1</li>
      <li data-jstree='"opened":true'>Item 2 - Must keep open
      <ul>
      <li>Always Visible</li>
      </ul>
      </li>
      <li>Item 3</li>
      </ul>
      </li>
      </ul>
      </div>






      javascript jquery tree jstree






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 12 at 16:01









      freefaller

      13.1k53866




      13.1k53866






















          1 Answer
          1






          active

          oldest

          votes


















          1














          I couldn't find any option for preventing the closing of the node besides the option of overriding the close_node function of the jstree code.



          Here is an example:






          $(function() 

          $.jstree.core.prototype.old_close_node = $.jstree.core.prototype.close_node;
          $.jstree.core.prototype.close_node = function(obj, animation)
          node_obj = this.get_node(obj);
          // in case the flag exists - don't continue to with the original function.
          if (node_obj.state.prevent_close)
          return;

          this.old_close_node(obj, animation);


          $("#treeRoot").on('loaded.jstree', function()
          $('#treeRoot li').each((index, el) =>
          if ($(el).data('jstree') && $(el).data('jstree').prevent_close)
          $(el).addClass('prevent-close');

          )
          ).jstree(
          core:
          themes:
          variant: "small"


          )
          );

          .jstree-default-small .jstree-open.prevent-close>.jstree-ocl 
          background-position: -71px -7px;

          <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="treeRoot">
          <ul>
          <li data-jstree='"opened":true'>Root
          <ul>
          <li>Item 1</li>
          <!-- v-- this is the flag to prevent the close -->
          <li data-jstree='"opened":true, "prevent_close": true'>Item 2 - Must keep open
          <ul>
          <li>Always Visible</li>
          </ul>
          </li>
          <li>Item 3</li>
          </ul>
          </li>
          </ul>
          </div>





          I didn't have the time to handle with the triangle, let me know if you have issues there, I'll try to find a solution for this one as well.






          share|improve this answer






















          • Thanks for your time Dekel... is your code supposed to stop the collapse, or demonstrate how to override the close functionality?
            – freefaller
            Nov 12 at 17:05










          • both, actually :) try to click on the "root" element (to close it).
            – Dekel
            Nov 12 at 17:06










          • Ah, that's something I hadn't tried... as it's the "Item 2 - Must keep open" that I'm trying to block the closure of. Every parent-node should act as normal
            – freefaller
            Nov 12 at 17:07










          • Just add the "prevent_close": true where you need it... I changed the code to set the prevent_close on the second element. check it now.
            – Dekel
            Nov 12 at 17:08











          • Interesting... many thanks for the idea. Never keen on overriding functionality, in case the underlying functionality changes in future updates. Will have a play and let you know how I get on. If you do figure out removing the triangle, please let me know
            – freefaller
            Nov 12 at 17:09











          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


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53265854%2fjstree-stop-single-expanded-node-from-collapsing%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









          1














          I couldn't find any option for preventing the closing of the node besides the option of overriding the close_node function of the jstree code.



          Here is an example:






          $(function() 

          $.jstree.core.prototype.old_close_node = $.jstree.core.prototype.close_node;
          $.jstree.core.prototype.close_node = function(obj, animation)
          node_obj = this.get_node(obj);
          // in case the flag exists - don't continue to with the original function.
          if (node_obj.state.prevent_close)
          return;

          this.old_close_node(obj, animation);


          $("#treeRoot").on('loaded.jstree', function()
          $('#treeRoot li').each((index, el) =>
          if ($(el).data('jstree') && $(el).data('jstree').prevent_close)
          $(el).addClass('prevent-close');

          )
          ).jstree(
          core:
          themes:
          variant: "small"


          )
          );

          .jstree-default-small .jstree-open.prevent-close>.jstree-ocl 
          background-position: -71px -7px;

          <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="treeRoot">
          <ul>
          <li data-jstree='"opened":true'>Root
          <ul>
          <li>Item 1</li>
          <!-- v-- this is the flag to prevent the close -->
          <li data-jstree='"opened":true, "prevent_close": true'>Item 2 - Must keep open
          <ul>
          <li>Always Visible</li>
          </ul>
          </li>
          <li>Item 3</li>
          </ul>
          </li>
          </ul>
          </div>





          I didn't have the time to handle with the triangle, let me know if you have issues there, I'll try to find a solution for this one as well.






          share|improve this answer






















          • Thanks for your time Dekel... is your code supposed to stop the collapse, or demonstrate how to override the close functionality?
            – freefaller
            Nov 12 at 17:05










          • both, actually :) try to click on the "root" element (to close it).
            – Dekel
            Nov 12 at 17:06










          • Ah, that's something I hadn't tried... as it's the "Item 2 - Must keep open" that I'm trying to block the closure of. Every parent-node should act as normal
            – freefaller
            Nov 12 at 17:07










          • Just add the "prevent_close": true where you need it... I changed the code to set the prevent_close on the second element. check it now.
            – Dekel
            Nov 12 at 17:08











          • Interesting... many thanks for the idea. Never keen on overriding functionality, in case the underlying functionality changes in future updates. Will have a play and let you know how I get on. If you do figure out removing the triangle, please let me know
            – freefaller
            Nov 12 at 17:09
















          1














          I couldn't find any option for preventing the closing of the node besides the option of overriding the close_node function of the jstree code.



          Here is an example:






          $(function() 

          $.jstree.core.prototype.old_close_node = $.jstree.core.prototype.close_node;
          $.jstree.core.prototype.close_node = function(obj, animation)
          node_obj = this.get_node(obj);
          // in case the flag exists - don't continue to with the original function.
          if (node_obj.state.prevent_close)
          return;

          this.old_close_node(obj, animation);


          $("#treeRoot").on('loaded.jstree', function()
          $('#treeRoot li').each((index, el) =>
          if ($(el).data('jstree') && $(el).data('jstree').prevent_close)
          $(el).addClass('prevent-close');

          )
          ).jstree(
          core:
          themes:
          variant: "small"


          )
          );

          .jstree-default-small .jstree-open.prevent-close>.jstree-ocl 
          background-position: -71px -7px;

          <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="treeRoot">
          <ul>
          <li data-jstree='"opened":true'>Root
          <ul>
          <li>Item 1</li>
          <!-- v-- this is the flag to prevent the close -->
          <li data-jstree='"opened":true, "prevent_close": true'>Item 2 - Must keep open
          <ul>
          <li>Always Visible</li>
          </ul>
          </li>
          <li>Item 3</li>
          </ul>
          </li>
          </ul>
          </div>





          I didn't have the time to handle with the triangle, let me know if you have issues there, I'll try to find a solution for this one as well.






          share|improve this answer






















          • Thanks for your time Dekel... is your code supposed to stop the collapse, or demonstrate how to override the close functionality?
            – freefaller
            Nov 12 at 17:05










          • both, actually :) try to click on the "root" element (to close it).
            – Dekel
            Nov 12 at 17:06










          • Ah, that's something I hadn't tried... as it's the "Item 2 - Must keep open" that I'm trying to block the closure of. Every parent-node should act as normal
            – freefaller
            Nov 12 at 17:07










          • Just add the "prevent_close": true where you need it... I changed the code to set the prevent_close on the second element. check it now.
            – Dekel
            Nov 12 at 17:08











          • Interesting... many thanks for the idea. Never keen on overriding functionality, in case the underlying functionality changes in future updates. Will have a play and let you know how I get on. If you do figure out removing the triangle, please let me know
            – freefaller
            Nov 12 at 17:09














          1












          1








          1






          I couldn't find any option for preventing the closing of the node besides the option of overriding the close_node function of the jstree code.



          Here is an example:






          $(function() 

          $.jstree.core.prototype.old_close_node = $.jstree.core.prototype.close_node;
          $.jstree.core.prototype.close_node = function(obj, animation)
          node_obj = this.get_node(obj);
          // in case the flag exists - don't continue to with the original function.
          if (node_obj.state.prevent_close)
          return;

          this.old_close_node(obj, animation);


          $("#treeRoot").on('loaded.jstree', function()
          $('#treeRoot li').each((index, el) =>
          if ($(el).data('jstree') && $(el).data('jstree').prevent_close)
          $(el).addClass('prevent-close');

          )
          ).jstree(
          core:
          themes:
          variant: "small"


          )
          );

          .jstree-default-small .jstree-open.prevent-close>.jstree-ocl 
          background-position: -71px -7px;

          <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="treeRoot">
          <ul>
          <li data-jstree='"opened":true'>Root
          <ul>
          <li>Item 1</li>
          <!-- v-- this is the flag to prevent the close -->
          <li data-jstree='"opened":true, "prevent_close": true'>Item 2 - Must keep open
          <ul>
          <li>Always Visible</li>
          </ul>
          </li>
          <li>Item 3</li>
          </ul>
          </li>
          </ul>
          </div>





          I didn't have the time to handle with the triangle, let me know if you have issues there, I'll try to find a solution for this one as well.






          share|improve this answer














          I couldn't find any option for preventing the closing of the node besides the option of overriding the close_node function of the jstree code.



          Here is an example:






          $(function() 

          $.jstree.core.prototype.old_close_node = $.jstree.core.prototype.close_node;
          $.jstree.core.prototype.close_node = function(obj, animation)
          node_obj = this.get_node(obj);
          // in case the flag exists - don't continue to with the original function.
          if (node_obj.state.prevent_close)
          return;

          this.old_close_node(obj, animation);


          $("#treeRoot").on('loaded.jstree', function()
          $('#treeRoot li').each((index, el) =>
          if ($(el).data('jstree') && $(el).data('jstree').prevent_close)
          $(el).addClass('prevent-close');

          )
          ).jstree(
          core:
          themes:
          variant: "small"


          )
          );

          .jstree-default-small .jstree-open.prevent-close>.jstree-ocl 
          background-position: -71px -7px;

          <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="treeRoot">
          <ul>
          <li data-jstree='"opened":true'>Root
          <ul>
          <li>Item 1</li>
          <!-- v-- this is the flag to prevent the close -->
          <li data-jstree='"opened":true, "prevent_close": true'>Item 2 - Must keep open
          <ul>
          <li>Always Visible</li>
          </ul>
          </li>
          <li>Item 3</li>
          </ul>
          </li>
          </ul>
          </div>





          I didn't have the time to handle with the triangle, let me know if you have issues there, I'll try to find a solution for this one as well.






          $(function() 

          $.jstree.core.prototype.old_close_node = $.jstree.core.prototype.close_node;
          $.jstree.core.prototype.close_node = function(obj, animation)
          node_obj = this.get_node(obj);
          // in case the flag exists - don't continue to with the original function.
          if (node_obj.state.prevent_close)
          return;

          this.old_close_node(obj, animation);


          $("#treeRoot").on('loaded.jstree', function()
          $('#treeRoot li').each((index, el) =>
          if ($(el).data('jstree') && $(el).data('jstree').prevent_close)
          $(el).addClass('prevent-close');

          )
          ).jstree(
          core:
          themes:
          variant: "small"


          )
          );

          .jstree-default-small .jstree-open.prevent-close>.jstree-ocl 
          background-position: -71px -7px;

          <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="treeRoot">
          <ul>
          <li data-jstree='"opened":true'>Root
          <ul>
          <li>Item 1</li>
          <!-- v-- this is the flag to prevent the close -->
          <li data-jstree='"opened":true, "prevent_close": true'>Item 2 - Must keep open
          <ul>
          <li>Always Visible</li>
          </ul>
          </li>
          <li>Item 3</li>
          </ul>
          </li>
          </ul>
          </div>





          $(function() 

          $.jstree.core.prototype.old_close_node = $.jstree.core.prototype.close_node;
          $.jstree.core.prototype.close_node = function(obj, animation)
          node_obj = this.get_node(obj);
          // in case the flag exists - don't continue to with the original function.
          if (node_obj.state.prevent_close)
          return;

          this.old_close_node(obj, animation);


          $("#treeRoot").on('loaded.jstree', function()
          $('#treeRoot li').each((index, el) =>
          if ($(el).data('jstree') && $(el).data('jstree').prevent_close)
          $(el).addClass('prevent-close');

          )
          ).jstree(
          core:
          themes:
          variant: "small"


          )
          );

          .jstree-default-small .jstree-open.prevent-close>.jstree-ocl 
          background-position: -71px -7px;

          <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="treeRoot">
          <ul>
          <li data-jstree='"opened":true'>Root
          <ul>
          <li>Item 1</li>
          <!-- v-- this is the flag to prevent the close -->
          <li data-jstree='"opened":true, "prevent_close": true'>Item 2 - Must keep open
          <ul>
          <li>Always Visible</li>
          </ul>
          </li>
          <li>Item 3</li>
          </ul>
          </li>
          </ul>
          </div>






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 12 at 17:25

























          answered Nov 12 at 16:58









          Dekel

          42.5k54567




          42.5k54567











          • Thanks for your time Dekel... is your code supposed to stop the collapse, or demonstrate how to override the close functionality?
            – freefaller
            Nov 12 at 17:05










          • both, actually :) try to click on the "root" element (to close it).
            – Dekel
            Nov 12 at 17:06










          • Ah, that's something I hadn't tried... as it's the "Item 2 - Must keep open" that I'm trying to block the closure of. Every parent-node should act as normal
            – freefaller
            Nov 12 at 17:07










          • Just add the "prevent_close": true where you need it... I changed the code to set the prevent_close on the second element. check it now.
            – Dekel
            Nov 12 at 17:08











          • Interesting... many thanks for the idea. Never keen on overriding functionality, in case the underlying functionality changes in future updates. Will have a play and let you know how I get on. If you do figure out removing the triangle, please let me know
            – freefaller
            Nov 12 at 17:09

















          • Thanks for your time Dekel... is your code supposed to stop the collapse, or demonstrate how to override the close functionality?
            – freefaller
            Nov 12 at 17:05










          • both, actually :) try to click on the "root" element (to close it).
            – Dekel
            Nov 12 at 17:06










          • Ah, that's something I hadn't tried... as it's the "Item 2 - Must keep open" that I'm trying to block the closure of. Every parent-node should act as normal
            – freefaller
            Nov 12 at 17:07










          • Just add the "prevent_close": true where you need it... I changed the code to set the prevent_close on the second element. check it now.
            – Dekel
            Nov 12 at 17:08











          • Interesting... many thanks for the idea. Never keen on overriding functionality, in case the underlying functionality changes in future updates. Will have a play and let you know how I get on. If you do figure out removing the triangle, please let me know
            – freefaller
            Nov 12 at 17:09
















          Thanks for your time Dekel... is your code supposed to stop the collapse, or demonstrate how to override the close functionality?
          – freefaller
          Nov 12 at 17:05




          Thanks for your time Dekel... is your code supposed to stop the collapse, or demonstrate how to override the close functionality?
          – freefaller
          Nov 12 at 17:05












          both, actually :) try to click on the "root" element (to close it).
          – Dekel
          Nov 12 at 17:06




          both, actually :) try to click on the "root" element (to close it).
          – Dekel
          Nov 12 at 17:06












          Ah, that's something I hadn't tried... as it's the "Item 2 - Must keep open" that I'm trying to block the closure of. Every parent-node should act as normal
          – freefaller
          Nov 12 at 17:07




          Ah, that's something I hadn't tried... as it's the "Item 2 - Must keep open" that I'm trying to block the closure of. Every parent-node should act as normal
          – freefaller
          Nov 12 at 17:07












          Just add the "prevent_close": true where you need it... I changed the code to set the prevent_close on the second element. check it now.
          – Dekel
          Nov 12 at 17:08





          Just add the "prevent_close": true where you need it... I changed the code to set the prevent_close on the second element. check it now.
          – Dekel
          Nov 12 at 17:08













          Interesting... many thanks for the idea. Never keen on overriding functionality, in case the underlying functionality changes in future updates. Will have a play and let you know how I get on. If you do figure out removing the triangle, please let me know
          – freefaller
          Nov 12 at 17:09





          Interesting... many thanks for the idea. Never keen on overriding functionality, in case the underlying functionality changes in future updates. Will have a play and let you know how I get on. If you do figure out removing the triangle, please let me know
          – freefaller
          Nov 12 at 17:09


















          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.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • 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














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53265854%2fjstree-stop-single-expanded-node-from-collapsing%23new-answer', 'question_page');

          );

          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







          這個網誌中的熱門文章

          Barbados

          How to read a connectionString WITH PROVIDER in .NET Core?

          Node.js Script on GitHub Pages or Amazon S3