jqGrid重载网格

Question

这是我之前关于在基于jqGrid的表中添加列的问题的补充.这里是我的新js代码:

var col_names = ['First', 'Second', 'Third', 'Fourth', 'Fifth'];
var col_model = [
      {name:'invid', index:'invid', width:100}, 
      {name:'invdate', index:'invdate', width:90}, 
      {name:'amount', index:'amount', width:80, align:'right'}, 
      {name:'tax', index:'tax', width:80, align:'right'}, 
      {name:'total', index:'total', width:80, align:'right'}, 
];

function createGrid()
{
  var handle = $("#list").jqGrid({
    url:'data.xml',
    datatype: 'xml',
    mtype: 'GET',
    colNames: col_names,
    colModel : col_model,
  }); 
}

现在我createGrid();在加载文档后调用,一切正常.现在我想添加一个新列(带有空数据)并重新加载jqGrid:

  $("#add_column").click(function() {
        $('#list').trigger("DestroyGrid"); // Also tried UnloadGrid

        col_names.push('New');
        col_model.push({name: 'test', index: 'test', width: 100});

        createGrid(); // And recreate grid
  });

但没有任何反应,为什么？

---

UPD

  $("#add_column").click(function() {
        col_names.push('New');
        col_model.push({name: 'test', index: 'test', width: 100});

        $('#list').trigger("reloadGrid");
  });

同样的情况

---

UPD2 我试过这些:

ajaxGridOptions: {cache: false},
loadonce:false

没有改变这种情况.

Answer 1

你可以做以下事情

var counter=1; // to be able to click more then one time
$("#add_column").click(function() {
    $("#list").jqGrid('GridUnload');

    col_names.push('New'+counter);
    col_model.push({name: 'test'+counter, index: 'test'+counter, width: 100});
    counter++;

    createGrid();
});