# Events
You can set an event listener using the listen(type, listener)
method.
Please get the event type from cheetahGrid.ListGrid.EVENT_TYPE
.
<textarea class="log" style="width: 100%; height: 100px;">Event logs</textarea>
<input class="include-mouse" type="checkbox"><label>Include mousemove,mouseenter,mouseleave in the log</label>
<div class="sample1 demo-grid middle"></div>
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const lang = navigator.language || navigator.userLanguage || navigator.browserLanguage;
const records = generatePersons(100);
const grid = new cheetahGrid.ListGrid({
parentElement: document.querySelector('.sample1'),
header: [
{field: 'check', caption: '', width: 60, columnType: 'check', action: 'check'},
{field: 'personid', caption: 'ID', width: 100},
{field: 'fname', caption: 'First Name', width: 200, action: 'input'},
{field: 'lname', caption: 'Last Name', width: 200, action: 'input'},
{field: 'email', caption: 'Email', width: 250, action: 'input'},
{
field(rec) {
return rec.birthday.toLocaleString(lang, {year: 'numeric', month: 'long', day: 'numeric'});
},
caption: 'birthday',
width: 500
},
],
frozenColCount: 1,
records,
});
const log = (typeName, args) => {
const el = document.querySelector('.log');
el.value += `\nEvent: ${typeName} , args (${args.map(JSON.stringify).join(', ')})`;
el.value = el.value.trim();
el.scrollTop = el.scrollHeight;
};
const {
CLICK_CELL,
DBLCLICK_CELL,
DBLTAP_CELL,
MOUSEDOWN_CELL,
MOUSEUP_CELL,
SELECTED_CELL,
KEYDOWN,
MOUSEMOVE_CELL,
MOUSEENTER_CELL,
MOUSELEAVE_CELL,
MOUSEOVER_CELL,
MOUSEOUT_CELL,
INPUT_CELL,
PASTE_CELL,
RESIZE_COLUMN,
SCROLL,
CHANGED_VALUE,
} = cheetahGrid.ListGrid.EVENT_TYPE;
grid.listen(CLICK_CELL, (...args) => log(CLICK_CELL, args));
grid.listen(DBLCLICK_CELL, (...args) => log(DBLCLICK_CELL, args));
grid.listen(DBLTAP_CELL, (...args) => log(DBLTAP_CELL, args));
grid.listen(MOUSEDOWN_CELL, (...args) => log(MOUSEDOWN_CELL, args));
grid.listen(MOUSEUP_CELL, (...args) => log(MOUSEUP_CELL, args));
grid.listen(SELECTED_CELL, (...args) => log(SELECTED_CELL, args));
grid.listen(KEYDOWN, (...args) => log(KEYDOWN, args));
grid.listen(INPUT_CELL, (...args) => log(INPUT_CELL, args));
grid.listen(PASTE_CELL, (...args) => log(PASTE_CELL, args));
grid.listen(RESIZE_COLUMN, (...args) => log(RESIZE_COLUMN, args));
grid.listen(SCROLL, (...args) => log(SCROLL, args));
grid.listen(CHANGED_VALUE, (...args) => log(CHANGED_VALUE, args));
grid.listen(MOUSEMOVE_CELL, (...args) => {
if (!document.querySelector('.include-mouse').checked) {
return;
}
log(MOUSEMOVE_CELL, args);
});
grid.listen(MOUSEENTER_CELL, (...args) => {
if (!document.querySelector('.include-mouse').checked) {
return;
}
log(MOUSEENTER_CELL, args);
});
grid.listen(MOUSELEAVE_CELL, (...args) => {
if (!document.querySelector('.include-mouse').checked) {
return;
}
log(MOUSELEAVE_CELL, args);
});
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