在 Ext.ux.grid.CheckColumn 中,添加这个注册 checkchange 事件的初始化方法:
initComponent: function(){
Ext.ux.grid.CheckColumn.superclass.initComponent.call(this);
this.addEvents(
'checkchange'
);
},
然后在 processEvent 中触发事件:
processEvent : function(name, e, grid, rowIndex, colIndex){
if (name == 'mousedown') {
var record = grid.store.getAt(rowIndex);
record.set(this.dataIndex, !record.data[this.dataIndex]);
// Fire checkchange event
this.fireEvent('checkchange', this, record.data[this.dataIndex]);
return false; // Cancel row selection.
} else {
return Ext.grid.ActionColumn.superclass.processEvent.apply(this, arguments);
}
},
生成的 CheckColumn 组件应如下所示:
Ext.ns('Ext.ux.grid');
Ext.ux.grid.CheckColumn = Ext.extend(Ext.grid.Column, {
// private
initComponent: function(){
Ext.ux.grid.CheckColumn.superclass.initComponent.call(this);
this.addEvents(
'checkchange'
);
},
processEvent : function(name, e, grid, rowIndex, colIndex){
if (name == 'mousedown') {
var record = grid.store.getAt(rowIndex);
record.set(this.dataIndex, !record.data[this.dataIndex]);
this.fireEvent('checkchange', this, record.data[this.dataIndex]);
return false; // Cancel row selection.
} else {
return Ext.grid.ActionColumn.superclass.processEvent.apply(this, arguments);
}
},
renderer : function(v, p, record){
p.css += ' x-grid3-check-col-td';
return String.format('<div class="x-grid3-check-col{0}"> </div>', v ? '-on' : '');
},
// Deprecate use as a plugin. Remove in 4.0
init: Ext.emptyFn
});
// register ptype. Deprecate. Remove in 4.0
Ext.preg('checkcolumn', Ext.ux.grid.CheckColumn);
// backwards compat. Remove in 4.0
Ext.grid.CheckColumn = Ext.ux.grid.CheckColumn;
// register Column xtype
Ext.grid.Column.types.checkcolumn = Ext.ux.grid.CheckColumn;