[FIXED] how can i clear the rows of datagrid

[wade.zhu]

i have a datagrid and a search form, when submit search form, i want to clear the previous results first, then load new data from remote.
i didn't find 'clear', 'reset' or something else in the docs
i try to use loadData method to load empty data instead, like this:

Code:

$('#dtgResult').datagrid('loadData', []);// supposed to clear previous results
$('#dtgResult').datagrid('load', serialize($('#frmSearch'));// fetch new results from remote

i found loadData method will trigger loader to load data from remote if opt.url is not empty
it is not supposed to load remote data after loadData from local.

is that a bug?
or is there anyway to meet my requirement?

[hjzhbb7758]

hei，gay。where‘re you from /?

[aswzen]

try run this script..

Code:

$('#your_table_id').datagrid('loadData', {"total":0,"rows":[]});

[wade.zhu]

i found a bug of datagrid when no data filled, see the code bellow

Code:

<table class="easyui-datagrid" title="Basic DataGrid" style="width:700px;height:250px"
			data-options="pagination:true,pageSize:10">
	<thead>
		<tr>
			<th data-options="field:'itemid',width:80">Item ID</th>
			<th data-options="field:'productid',width:100">Product</th>
			<th data-options="field:'listprice',width:80,align:'right'">List Price</th>
			<th data-options="field:'unitcost',width:80,align:'right'">Unit Cost</th>
			<th data-options="field:'attr1',width:250">Attribute</th>
			<th data-options="field:'status',width:60,align:'center'">Status</th>
		</tr>
	</thead>
</table>

url property is undefined, the pager shows incorrectly,that is why loadData will trigger loader to load data
_5d7(_60f); at line 8668 executed and loader will be called when loadData [].

Code:

var _614=$(_60f).datagrid("getPager");
if(_614.length){
var _615=_614.pagination("options");
if(_615.total!=data.total){
_614.pagination("refresh",{total:data.total});
if(opts.pageNumber!=_615.pageNumber){
opts.pageNumber=_615.pageNumber;
_5d7(_60f);//line 8668
}
}
}

[stworthy]

By default the 'pageNumber' property is set to 1, you can set it to 0 if the 'url' property is not defined.

Code:

$('#dg').datagrid({
  pageNumber:0
});

[wade.zhu]

yeah, it works upon lastest jquery.easyui.patch.js.
pageNumber will be reset to 1 when load remote.
thanks.

Code:

$('#dtgResult').datagrid（'options').pageNumber = 0; // reset pageNumber for bug-fixing loadData
$('#dtgResult').datagrid('loadData', []);// supposed to clear previous results
$('#dtgResult').datagrid('load', serialize($('#frmSearch'));// fetch new results from remote

i suggest adding 'clear' method or something like this in next version.

[zhcnlei]

this problem does exist

[page] parameter, second post is 0

after using the patch, [page] parameter is 1

however, rows.length == 0, it will still be post twice

[stworthy]

Please try to download the patch from http://www.jeasyui.com/download/downloads/jquery-easyui-1.4-patch.zip.