更新Telerik Kendo Grid(MVC)后刷新

Question

我有一个带有一些环境数据的Kendo Grid.网格的一个字段是"isDefault",它接收1或0(对于真或假).在数据库中,我有一个触发器,当某个记录设置为isDefault = 1时,任何其他记录都更新为isDefault = 0,只是为了确保只有一个默认环境.

Kendo网格工作正常,它绑定数据并更新记录就好了但是在更新之后,网格没有刷新所有记录,如果有,比方说,记录1,isDefault = 1,我更新记录4到isDefault = 1触发器被触发并将所有其他记录更新为isDefault = 0但网格仍然显示记录1,isDefault = 1,现在记录4,isDefault = 1

这是我视图中的代码:

Html.Kendo().Grid<Models.Environment>()
                   .Name("environmentGrid")
                   .Sortable()
                   .ToolBar(tb =>  tb.Create())
                   .Editable(editable => editable.Mode(GridEditMode.PopUp))
                   .Columns(cols =>
                   {
                       cols.Bound(c => c.Name).Width(150).Sortable(true);
                       cols.Bound(c => c.ConnectionString).Width(150).Sortable(true);
                       cols.Bound(c => c.Template).Width(150).Sortable(true);
                       cols.Bound(c => c.isDefault).Width(150).Sortable(true);
                       cols.Bound(c => c.StatusID).Width(150).Sortable(true);
                       cols.Command(command => { command.Edit();}).Width(60);
                   })
                   .DataSource(ds => ds
                       .Ajax()
                       .Model(model => 
                       { 
                           model.Id(m => m.EnvironmentID);
                       })
                       .Read(r => r.Action("GetEnvironments", "Admin"))
                       .Update(update => update.Action("UpdateEnvironments", "Admin"))
                       .Create(update => update.Action("UpdateEnvironments", "Admin"))                           
                   )

这是我的控制器上的代码:

[AcceptVerbs(HttpVerbs.Post)]
    public ActionResult UpdateEnvironments([DataSourceRequest] DataSourceRequest dsRequest, Environment environment)
    {
        environment.ModifiedBy = userName;

        if (environment != null && ModelState.IsValid)
        {
            if (environment.EnvironmentID != 0)
            {
                var toUpdate = xgr.EnviromentRepository.ListAll().FirstOrDefault(p => p.EnvironmentID == environment.EnvironmentID);
                TryUpdateModel(toUpdate);
            }
            xgr.EnviromentRepository.Save(environment);
        }
        return Json(ModelState.ToDataSourceResult());
    }

提前感谢您的回答.

Answer 1

我终于开始工作了.添加了事件处理程序:

Html.Kendo().Grid<Models.Environment>()
                   .Name("environmentGrid")
                   .Sortable()
                   .ToolBar(tb =>  tb.Create())
                   .Editable(editable => editable.Mode(GridEditMode.PopUp))
                   .Columns(cols =>
                   {
                       cols.Bound(c => c.Name).Width(150).Sortable(true);
                       cols.Bound(c => c.ConnectionString).Width(150).Sortable(true);
                       cols.Bound(c => c.Template).Width(150).Sortable(true);
                       cols.Bound(c => c.isDefault).Width(150).Sortable(true);
                       cols.Bound(c => c.StatusID).Width(150).Sortable(true);
                       cols.Command(command => { command.Edit();}).Width(60);
                   })
                   .DataSource(ds => ds
                       .Ajax()
                       .Model(model => 
                       { 
                           model.Id(m => m.EnvironmentID);
                       })
                       .Events(events =>
                              {
                                    events.RequestEnd("onRequestEnd"); //I've added this
                              })
                           .Read(r => r.Action("GetEnvironments", "Admin"))
                           .Update(update => update.Action("UpdateEnvironments", "Admin"))
                           .Create(update => update.Action("UpdateEnvironments", "Admin"))                           
                       )

和一个Javascript函数:

function onRequestEnd(e) {
        if (e.type == "update") {
            $("#environmentGrid").data("kendoGrid").dataSource.read();
        }
    }

另外,我需要修改EnvironmentRepository上的ListAll()方法,如下所示:

 public List<XML_Environment> ListAll()
    {
        _dataContext = new XMLGenEntitiesDataContext(); //I've to add this line. so the context is instantiated every time I call the ListAll Method.
        return _dataContext.XML_Environments.OrderBy<XML_Environment, string>(c => c.EnvironmentName).ToList<XML_Environment>();
    }