あなたは列のラベルを変更したい場合、あなたはactioncolumn
例えばmenuText
と呼ばれる設定を使用する必要があります(https://fiddle.sencha.com/#fiddle/1944)
{
xtype:'actioncolumn',
width:50,
menuText: 'My Actions',
items: [{
icon: 'extjs-build/examples/shared/icons/fam/cog_edit.png', // Use a URL in the icon config
tooltip: 'Edit',
handler: function(grid, rowIndex, colIndex) {
var rec = grid.getStore().getAt(rowIndex);
alert("Edit " + rec.get('firstname'));
}
},{
icon: 'extjs-build/examples/restful/images/delete.png',
tooltip: 'Delete',
handler: function(grid, rowIndex, colIndex) {
var rec = grid.getStore().getAt(rowIndex);
alert("Terminate " + rec.get('firstname'));
}
}]
}
を