Hello

I'm strugled with a nasty bug.

I have to paginate a grid withe a lot of data so, I put a remote filter in it but when I try to filter on a list, I got this message :

Uncaught TypeError: Cannot read property 'items' of null
at E.getOptionsFromStore (ext.axd?v=19950:19)
at E.createListStore (ext.axd?v=19950:19)
at E.bindMenuStore (ext.axd?v=19950:19)
at E.onDataChanged (ext.axd?v=19950:19)
at E.fire (ext.axd?v=19950:19)
at E.doFireEvent (ext.axd?v=19950:19)
at E.a.doFireEvent (ext.axd?v=19950:19)
at E.fireEventArgs (ext.axd?v=19950:19)
at E.fireEvent (ext.axd?v=19950:19)
at E.loadRecords (ext.axd?v=19950:19)
I get this example : https://examples3.ext.net/#/GridPane...ilters_Remote/ and it apears it works, unles I remove the Oprion parameter ftom the ListFilter, then, it crashes.

Here the example modified by me

<%@ Page Language="C#" %>

<%@ Import Namespace="System.Collections.Generic" %>

<script runat="server">
    protected void Store1_RefreshData(object sender, StoreReadDataEventArgs e)
    {
        List<object> data = FiltersTestData.Data;

        string s = e.Parameters["filter"];

        //-- start filtering ------------------------------------------------------------
        if (!string.IsNullOrEmpty(s))
        {
            FilterConditions fc = new FilterConditions(s);

            foreach (FilterCondition condition in fc.Conditions)
            {
                Comparison comparison = condition.Comparison;
                string field = condition.Field;
                FilterType type = condition.Type;

                object value;
                switch (condition.Type)
                {
                    case FilterType.Boolean:
                        value = condition.Value<bool>();
                        break;
                    case FilterType.Date:
                        value = condition.Value<DateTime>();
                        break;
                    case FilterType.List:
                        value = condition.List;
                        break;
                    case FilterType.Number:
                        if (data.Count > 0 && data[0].GetType().GetProperty(field).PropertyType == typeof(int))
                        {
                            value = condition.Value<int>();
                        }
                        else
                        {
                            value = condition.Value<double>();
                        }

                        break;
                    case FilterType.String:
                        value = condition.Value<string>();
                        break;
                    default:
                        throw new ArgumentOutOfRangeException();
                }

                data.RemoveAll(
                    item =>
                    {
                        object oValue = item.GetType().GetProperty(field).GetValue(item, null);
                        IComparable cItem = oValue as IComparable;

                        switch (comparison)
                        {
                            case Comparison.Eq:
                            case Comparison.Like:
                            case Comparison.In:
                                switch (type)
                                {
                                    case FilterType.List:
                                        return !(value as List<string>).Contains(oValue.ToString());
                                    case FilterType.String:
                                        return !oValue.ToString().StartsWith(value.ToString());
                                    default:
                                        return !cItem.Equals(value);
                                }

                            case Comparison.Gt:
                                return cItem.CompareTo(value) < 1;
                            case Comparison.Lt:
                                return cItem.CompareTo(value) > -1;
                            default:
                                throw new ArgumentOutOfRangeException();
                        }
                    }
                );
            }
        }
        //-- end filtering ------------------------------------------------------------


        //-- start sorting ------------------------------------------------------------
        if (e.Sort.Length > 0)
        {
            data.Sort(delegate(object x, object y)
            {
                object a;
                object b;

                int direction = e.Sort[0].Direction == Ext.Net.SortDirection.DESC ? -1 : 1;

                a = x.GetType().GetProperty(e.Sort[0].Property).GetValue(x, null);
                b = y.GetType().GetProperty(e.Sort[0].Property).GetValue(y, null);
                return CaseInsensitiveComparer.Default.Compare(a, b) * direction;
            });
        }
        //-- end sorting ------------------------------------------------------------


        //-- start paging ------------------------------------------------------------
        int limit = e.Limit;

        if ((e.Start + e.Limit) > data.Count)
        {
            limit = data.Count - e.Start;
        }

        List<object> rangeData = (e.Start < 0 || limit < 0) ? data : data.GetRange(e.Start, limit);
        //-- end paging ------------------------------------------------------------

        //The Total can be set in RefreshData event as below
        //or (Store1.Proxy.Proxy as PageProxy).Total in anywhere
        //Please pay attention that the Total make a sence only during DirectEvent because
        //the Store with PageProxy get/refresh data using ajax request

        e.Total = data.Count;

        this.GridPanel1.GetStore().DataSource = rangeData;
    }
</script>

<!DOCTYPE html>

<html>
<head runat="server">
    <title>GridPanel with Remote Filtering, Sorting and Paging - Ext.NET Examples</title>
    <link href="/resources/css/examples.css" rel="stylesheet" />
</head>
<body>
    <form runat="server">
        <ext:ResourceManager runat="server" />

        <h1>GridPanel with Remote Filtering, Sorting and Paging</h1>

        <p>Please see column header menu for apllying filters</p>

        <ext:Window
            runat="server"
            Width="700"
            Height="400"
            Closable="false"
            Collapsible="true"
            Title="Example"
            Maximizable="true"
            Layout="Fit">
            <Items>
                <ext:GridPanel ID="GridPanel1" runat="server" Border="false">
                    <Store>
                        <ext:Store
                            runat="server"
                            RemoteSort="true"
                            RemoteFilter="true"
                            OnReadData="Store1_RefreshData"
                            PageSize="10">
                            <Proxy>
                                <ext:PageProxy />
                            </Proxy>
                            <Model>
                                <ext:Model runat="server" IDProperty="Id">
                                    <Fields>
                                        <ext:ModelField Name="Id" Type="Int" />
                                        <ext:ModelField Name="Company" Type="String" />
                                        <ext:ModelField Name="Price" Type="Float" />
                                        <ext:ModelField Name="Date" Type="Date" />
                                        <ext:ModelField Name="Size" Type="String" />
                                        <ext:ModelField Name="Visible" Type="Boolean" />
                                    </Fields>
                                </ext:Model>
                            </Model>
                            <Sorters>
                                <ext:DataSorter Property="Company" Direction="ASC" />
                            </Sorters>
                        </ext:Store>
                    </Store>
                    <ColumnModel runat="server">
                        <Columns>
                            <ext:Column runat="server" Text="ID" DataIndex="Id">
                                <Filter>
                                    <ext:NumberFilter />
                                </Filter>
                            </ext:Column>
                            <ext:Column ID="CompanyColumn" runat="server" Text="Company" DataIndex="Company">
                                <Filter>
                                    <ext:StringFilter />
                                </Filter>
                            </ext:Column>
                            <ext:Column runat="server" Text="Price" DataIndex="Price">
                                <Renderer Format="UsMoney" />
                                <Filter>
                                    <ext:NumberFilter />
                                </Filter>
                            </ext:Column>
                            <ext:DateColumn runat="server" Text="Date" DataIndex="Date" Align="Center" Format="yyyy-MM-dd">
                                <Filter>
                                    <ext:DateFilter />
                                </Filter>
                            </ext:DateColumn>
                            <ext:Column runat="server" Text="Size" DataIndex="Size">
                                <Filter>
                                    <ext:ListFilter />
                                </Filter>
                            </ext:Column>
                            <ext:Column runat="server" Text="Visible" DataIndex="Visible" Align="Center">
                                <Renderer Handler="return (value) ? 'Yes':'No';" />
                                <Filter>
                                    <ext:BooleanFilter />
                                </Filter>
                            </ext:Column>
                        </Columns>
                    </ColumnModel>
                    <Plugins>
                        <ext:GridFilters runat="server" />
                    </Plugins>
                    <BottomBar>
                        <ext:PagingToolbar runat="server" />
                    </BottomBar>
                </ext:GridPanel>
            </Items>
        </ext:Window>
    </form>
</body>
</html>
I realy need help on this point.

Thanks