[OPEN] [#348] Infinity Scrolling

[thchuong]

Hi,

I follows sample instruction to make a grid panel with Infinity Scrolling but it does not work.

@(Html.X().GridPanel()      .Title("Users")
      .Width(600)
      .Height(350)
      .Store(Html.X().Store()
      .Buffered(true)
      .PageSize(25)
      .LeadingBufferZone(75)
                 .Model(Html.X().Model()
                            .Fields(
                                new ModelField("Id", ModelFieldType.String),
                                new ModelField("Username", ModelFieldType.String),
                                new ModelField("ShownName", ModelFieldType.String),
                                new ModelField("Administrator", ModelFieldType.Boolean)
                            )
                 )
                  .Proxy(Html.X().AjaxProxy()
                  .Url(Url.Action("GetUsers"))
                .Reader(Html.X().JsonReader().Root("data")))
      )
      .ColumnModel(
          Html.X().Column().Text("Username").DataIndex("Username").Width(100),
          Html.X().Column().Text("Shown Name").DataIndex("ShownName").Flex(1),
          Html.X().CheckColumn().Text("Administrator").DataIndex("Administrator").Width(100)
      )
      )

Could you please tell me what I miss?

Thanks,

[Daniil]

Hi @thchuong,

First of all, please clarify do you really need a buffered Store? How many records is it supposed to deal with?

Maybe, buffered rendering is good enough for you.

@(Html.X().GridPanel()
    .Plugins(Html.X().BufferedRenderer())
)

[thchuong]

Hi @thchuong,

First of all, please clarify do you really need a buffered Store? How many records is it supposed to deal with?

Maybe, buffered rendering is good enough for you.

@(Html.X().GridPanel()
    .Plugins(Html.X().BufferedRenderer())
)

Hi,

It is simple. I don't want to use paging by page, I prefer scrolling for ease of use; remote data not local data

Thanks,

[Daniil]

OK. Please demonstrate the GetUsers controller action.

[thchuong]

OK. Please demonstrate the GetUsers controller action.

Hi,

Here it is

        public ActionResult GetUsers(int start, int limit)        
{
            return this.Store(Users.GetUsers(start, limit), 5000);
        }

    public class User
    {
        public int Id { get; set; }
        public string Username { get; set; }
        public string Password { get; set; }
        public string ShownName { get; set; }
        public bool Administrator { get; set; }
    }


    public class Users
    {
        public static IEnumerable GetUsers(int start, int limit)
        {
            var result = new List<User>();


            for (var idx = start + 1; idx < start + limit; idx++)
            {
                result.Add(new User
                {
                    Id = idx,
                    Username = string.Format("user {0}", idx + 1),
                    ShownName = string.Format("Shown name {0}", idx + 1),
                    Administrator = idx % 2 == 0 ? true : false
                });
            }


            return result;
        }
    }

[Daniil]

Thank you. It looks correct.

Could you, please, elaborate the following? What exactly does happen?

but it does not work.

[thchuong]

Thank you. It looks correct.

Could you, please, elaborate the following? What exactly does happen?

Hi,

here it is

[Daniil]

Thank you, it is a bug. Reported to Sencha.
http://www.sencha.com/forum/showthread.php?272262

Created an Issue to track it.
https://github.com/extnet/Ext.NET/issues/348

Fixed in the SNV trunk, revision #5366.

Please update or use:

.CustomConfig(cc => cc.Add(new { pageSize = 25 }))

instead of

.PageSize(25)

Please note that the problem occurs with 25 only. It would be OK with 24, 26 or any other.

[thchuong]

Thank you, it is a bug. Reported to Sencha.
http://www.sencha.com/forum/showthread.php?272262

Created an Issue to track it.
https://github.com/extnet/Ext.NET/issues/348

Fixed in the SNV trunk, revision #5366.

Please update or use:

.CustomConfig(cc => cc.Add(new { pageSize = 25 }))

instead of

.PageSize(25)

Please note that the problem occurs with 25 only. It would be OK with 24, 26 or any other.

Hi Danill,

Nice to hear that. Thank you.