I use the following code in the page:
<body class="easyui-layout">
	<div region="west" split=true width=280 title="mytitle">
		<div id="menu"></div>
	</div>
	<div region="center">
		<div id="ts"></div>
	</div>
	<script>
	$(function(){
		$('#menu').tree({
			fit:true,
			border:false,
			data:[{
				text:'test1'
			},{
				text:'test2'
			}],
			onClick:function(node){
				var str = node.text;
				if($('#ts').tabs('exists',str)){
					$('#ts').tabs('select',str);
				}else{
					$('#ts').tabs('add',{
						title:str,
						closable:true,
						content:'<div id="' + str + '"></div>'
					});
				}
			}
		});
		$('#ts').tabs({
			border:false,
			pill:true,
			onAdd:function(title,index){
				var dg = $('#' + title);
				dg.datagrid({
					border:false,
					width:'auto',
					height:'auto',
					// fit:true,
					pagination:true,
				})
			}
		});
	})
	</script>
</body>
Why is the fit property in the datagrid invalid?
What should I do if I want the datagrid to fill the panel? Please help, thank you!