# IOutline

## Content

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</style><h1>Interface IOutline</h1>
<!-- ======== START OF CLASS DATA ======== -->

<section class="class-description" id="class-description">
<hr>
<div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">IOutline</span></div>
<div class="block">Represents an outline on a worksheet.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="IGroupInfo.html" title="interface in com.grapecity.documents.excel">IGroupInfo</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getColumnGroupInfo()" class="member-name-link">getColumnGroupInfo</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Gets information about all groups in the column direction.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="IGroupInfo.html" title="interface in com.grapecity.documents.excel">IGroupInfo</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getRowGroupInfo()" class="member-name-link">getRowGroupInfo</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Gets information about all groups in the row direction.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="SummaryColumn.html" title="enum class in com.grapecity.documents.excel">SummaryColumn</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getSummaryColumn()" class="member-name-link">getSummaryColumn</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Gets the location of the summary columns in the outline.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="SummaryRow.html" title="enum class in com.grapecity.documents.excel">SummaryRow</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getSummaryRow()" class="member-name-link">getSummaryRow</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Gets the location of the summary rows in the outline.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#setSummaryColumn(com.grapecity.documents.excel.SummaryColumn)" class="member-name-link">setSummaryColumn</a><wbr>(<a href="SummaryColumn.html" title="enum class in com.grapecity.documents.excel">SummaryColumn</a>&nbsp;value)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Sets the location of the summary columns in the outline.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#setSummaryRow(com.grapecity.documents.excel.SummaryRow)" class="member-name-link">setSummaryRow</a><wbr>(<a href="SummaryRow.html" title="enum class in com.grapecity.documents.excel">SummaryRow</a>&nbsp;value)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Sets the location of the summary rows in the outline.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#showLevels()" class="member-name-link">showLevels</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Displays the specified number of row and column levels of an outline.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#showLevels(int,int)" class="member-name-link">showLevels</a><wbr>(int&nbsp;rowLevels,
 int&nbsp;columnLevels)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Displays the specified number of row and column levels of an outline.</div>
</div>
</div>
</div>
</div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getSummaryColumn()">
<h3>getSummaryColumn</h3>
<div class="member-signature"><span class="return-type"><a href="SummaryColumn.html" title="enum class in com.grapecity.documents.excel">SummaryColumn</a></span>&nbsp;<span class="element-name">getSummaryColumn</span>()</div>
<div class="block">Gets the location of the summary columns in the outline.</div>
</section>
</li>
<li>
<section class="detail" id="setSummaryColumn(com.grapecity.documents.excel.SummaryColumn)">
<h3>setSummaryColumn</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">setSummaryColumn</span><wbr><span class="parameters">(<a href="SummaryColumn.html" title="enum class in com.grapecity.documents.excel">SummaryColumn</a>&nbsp;value)</span></div>
<div class="block">Sets the location of the summary columns in the outline.</div>
</section>
</li>
<li>
<section class="detail" id="getSummaryRow()">
<h3>getSummaryRow</h3>
<div class="member-signature"><span class="return-type"><a href="SummaryRow.html" title="enum class in com.grapecity.documents.excel">SummaryRow</a></span>&nbsp;<span class="element-name">getSummaryRow</span>()</div>
<div class="block">Gets the location of the summary rows in the outline.</div>
</section>
</li>
<li>
<section class="detail" id="setSummaryRow(com.grapecity.documents.excel.SummaryRow)">
<h3>setSummaryRow</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">setSummaryRow</span><wbr><span class="parameters">(<a href="SummaryRow.html" title="enum class in com.grapecity.documents.excel">SummaryRow</a>&nbsp;value)</span></div>
<div class="block">Sets the location of the summary rows in the outline.</div>
</section>
</li>
<li>
<section class="detail" id="showLevels()">
<h3>showLevels</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">showLevels</span>()</div>
<div class="block">Displays the specified number of row and column levels of an outline.</div>
</section>
</li>
<li>
<section class="detail" id="showLevels(int,int)">
<h3>showLevels</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">showLevels</span><wbr><span class="parameters">(int&nbsp;rowLevels,
 int&nbsp;columnLevels)</span></div>
<div class="block">Displays the specified number of row and column levels of an outline.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>rowLevels</code> - Optional Object. Specifies the number of row levels of an outlineto display. If the outline has fewer levels than the number specified, it displays all the levels. If this argument is 0 (zero) or is omitted, no action is taken on rows.</dd>
<dd><code>columnLevels</code> - Optional Object. Specifies the number of column levels of anoutline to display. If the outline has fewer levels than the number specified, it displays all the levels. If this argument is 0 (zero) or is omitted, no action is taken on columns.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getRowGroupInfo()">
<h3>getRowGroupInfo</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="IGroupInfo.html" title="interface in com.grapecity.documents.excel">IGroupInfo</a>&gt;</span>&nbsp;<span class="element-name">getRowGroupInfo</span>()</div>
<div class="block">Gets information about all groups in the row direction.</div>
</section>
</li>
<li>
<section class="detail" id="getColumnGroupInfo()">
<h3>getColumnGroupInfo</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="IGroupInfo.html" title="interface in com.grapecity.documents.excel">IGroupInfo</a>&gt;</span>&nbsp;<span class="element-name">getColumnGroupInfo</span>()</div>
<div class="block">Gets information about all groups in the column direction.</div>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
<!-- ========= END OF CLASS DATA ========= -->
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    }
    document.querySelectorAll('div.' + selected)
        .forEach(function (elem, index) {
            elem.style.display = '';
            var isEvenRow = index % (columns * 2) < columns;
            elem.classList.remove(isEvenRow ? oddRowColor : evenRowColor);
            elem.classList.add(isEvenRow ? evenRowColor : oddRowColor);
        });
    updateTabs(tableId, selected);
}

function updateTabs(tableId, selected) {
    document.querySelector('div#' + tableId + ' .summary-table')
        .setAttribute('aria-labelledby', selected);
    document.querySelectorAll('button[id^="' + tableId + '"]')
        .forEach(function (tab, index) {
            if (selected === tab.id || (tableId === selected && index === 0)) {
                tab.className = activeTableTab;
                tab.setAttribute('aria-selected', true);
                tab.setAttribute('tabindex', 0);
            } else {
                tab.className = tableTab;
                tab.setAttribute('aria-selected', false);
                tab.setAttribute('tabindex', -1);
            }
        });
}

function switchTab(e) {
    var selected = document.querySelector('[aria-selected=true]');
    if (selected) {
        if ((e.keyCode === 37 || e.keyCode === 38) && selected.previousSibling) {
            // left or up arrow key pressed: move focus to previous tab
            selected.previousSibling.click();
            selected.previousSibling.focus();
            e.preventDefault();
        } else if ((e.keyCode === 39 || e.keyCode === 40) && selected.nextSibling) {
            // right or down arrow key pressed: move focus to next tab
            selected.nextSibling.click();
            selected.nextSibling.focus();
            e.preventDefault();
        }
    }
}
</script></div>