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Expand/Collapse

You can specify expand/collapse state by setting expand/collapse options.

1. Expand and Collapse options

To collpase the chart to the second level add this in the configuration:


    
    collapse: {
        level: 2
    }
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In the example above if you click the expand button of node with id "2" all children will be expanded.


Here is an example how to collpase the chart to the second level and all children of the second level:


    
    collapse: {
        level: 2,
        allChildren: true
    }
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In the example above if you click the expand button of node with id "2" only the children from the third level will be expanded.


Here is an example how to collpase the chart to the second level and all children of the second level, except node with id "4":


    
    collapse: {
        level: 2,
        allChildren: true
    },
    expand: {
        nodes: [4]
    }
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Here is an example how to collpase the chart to the second level and all children of the second level, except node with id "4" and its children:


    
    collapse: {
        level: 2,
        allChildren: true
    },
    expand: {
        nodes: [4],
        allChildren: true
    }
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2. Expand/Collpase progammatically

You can use the following methods: expnad, collapse, expandCollapse

To expand all children to the leaf under a specific node, you need to iterate the nodes. Here is a code example.

2. Expand/Collpase on node click event

To expand or collapse on node click set nodeMouseClick to OrgChart.action.expandCollapse. Here is an example

 
    
    nodeMouseClick: OrgChart.action.expandCollapse,
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In some cases you might not need the expand/collapse button, to hide it you will need to override the template.

To do it, add these before chart declaration: 
 
    
OrgChart.templates.ana.plus = "";        
OrgChart.templates.ana.minus = "";
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How to itarate and collapse all nodes:

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3. onExpandCollpaseButtonClick event

To define custom expand/collpase logic use onExpandCollpaseButtonClick event. Here is a demo that you can use to get started.

How to itarate and collapse all on minus button click:

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4. Number of nodes

To display the number of the direct children change the template as follows:

 
        
OrgChart.templates.ana.plus = 
    `<circle cx="15" cy="15" r="15" fill="#ffffff" stroke="#aeaeae" stroke-width="1"></circle>
    <text text-anchor="middle" style="font-size: 18px;cursor:pointer;" fill="#757575" x="15" y="22">{children-count}</text>`;
OrgChart.templates.ana.minus = 
    `<circle cx="15" cy="15" r="15" fill="#ffffff" stroke="#aeaeae" stroke-width="1"></circle>
    <text text-anchor="middle" style="font-size: 18px;cursor:pointer;" fill="#757575" x="15" y="22">{children-count}</text>`;
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To display the number of the total children change the template as follows:

 
        
OrgChart.templates.ana.plus = 
    `<circle cx="15" cy="15" r="15" fill="#ffffff" stroke="#aeaeae" stroke-width="1"></circle>
    <text text-anchor="middle" style="font-size: 18px;cursor:pointer;" fill="#757575" x="15" y="22">{children-total-count}</text>`;
OrgChart.templates.ana.minus = 
    `<circle cx="15" cy="15" r="15" fill="#ffffff" stroke="#aeaeae" stroke-width="1"></circle>
    <text text-anchor="middle" style="font-size: 18px;cursor:pointer;" fill="#757575" x="15" y="22">{children-total-count}</text>`;
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To display the number of the direct collapsed children change the template as follows:

 
    
OrgChart.templates.ana.plus = 
    `<circle cx="15" cy="15" r="15" fill="#ffffff" stroke="#aeaeae" stroke-width="1"></circle>
    <text text-anchor="middle" style="font-size: 18px;cursor:pointer;" fill="#757575" x="15" y="22">{collapsed-children-count}</text>`;
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To display the number of the total collapsed nodes change the template as follows:

 
        
OrgChart.templates.ana.plus = 
    `<circle cx="15" cy="15" r="15" fill="#ffffff" stroke="#aeaeae" stroke-width="1"></circle>
    <text text-anchor="middle" style="font-size: 18px;cursor:pointer;" fill="#757575" x="15" y="22">{collapsed-children-total-count}</text>`;
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5. Expand Up

Using the Up level functionality you can expand one level up.

The functionality is available when you have defined roots in the chart configuration:

     
    roots: [3]
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You can remove the Up level functionality by setting the Up field to empty string:

 
    
OrgChart.templates.ana.up = "";

Or you can change it. This is the Up field definition:

 
    
OrgChart.templates.ana.up = 
    `<rect x="20" y="-25" width="30" height="17" fill="#aeaeae" rx="3" ry="3"></rect>
    <line x1="35" x2="35" y1="0" y2="-8" stroke="#aeaeae" stroke-width="1"></line>`;
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