Use tips to solve the problem of insufficient Ext column width_YUI.Ext related

The rendering function is written as follows:
function renderHallName(value, meta, rec, rowIdx, colIdx, ds){
return '

' value '

';
}
Required at the top Add Ext.QuickTips.init();
qtitle represents the title of the tip, and qtip represents the content. At this time, a prompt will appear when the mouse is moved!