当用户拖动grid边框调整其大小时触发
| old_width | number | 调整大小前grid的宽度 |
| new_width | number | 调整大小后grid的宽度 |
Available only in PRO Edition
gantt.attachEvent("onGridResize", function(old_width, new_width){
if(!message){
message = gantt.message({expire:-1,
text:"Grid当前宽度为 <b id='width_placeholder'></b><b>px</b>"});
}
document.getElementById("width_placeholder").innerText = new_width;
});
此功能仅在PRO版本中可用。