datagrid checkbox

[jaimi]

multiselect doesn't work:

,{field:'OLT00L001T_KEY',title:'LandKey'   ,width:130,sortable:'true',hidden:'true'}
   ,{field:'ch',checkbox:true/*,singleSelect:false*/}

I can select only one row regardless what I do with singleSelect. Select-All-Button in column header doesn't work neihter.

What to do?

[jarry]

Please look at this example https://www.jeasyui.com/demo/main/index.php?plugin=DataGrid&theme=material&dir=ltr&pitem=CheckBox%20Selection%20on%20DataGrid&sort=

[jaimi]

That is what I allready did. But the example is in html and my code in javascript.
There might be a difference.
could you give me a working example in javascript?