[CLOSED] Gridpanel with grouping feature , issues with group checkbox.

**Daly_AF** · Mar 05, 2013, 9:48 AM

Hello ,
I have a Gridpanel with the grouping feature and checkbox selection model and I added a listener on the groupcheck to check/uncheck the rows of a group, but I have missing features that I want to implement :
- When I click on check all checkbox on the header, groups must be checked either.
- When I check all the rows of a certain group manually, the group checkbox must become checked and if i uncheck at least one row the group check box must become unchecked.
- Is there any way to prevent groups from collapsing when I check the groups?

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

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!X.IsAjaxRequest)
        {
            this.BindData();
        }
    }

    protected void MyData_Refresh(object sender, StoreRefreshDataEventArgs e)
    {
        this.BindData();
    }

    private void BindData()
    {
        var store = this.GridPanel1.GetStore();

        store.DataSource = this.Data;
        store.DataBind();
    }

    private object[] Data
    {
        get
        {
            DateTime now = DateTime.Now;

            return new object[]
            {
                new object[] { "3m Co", 71.72, 0.02, 0.03, now , "Cat1"},
                new object[] { "Alcoa Inc", 29.01, 0.42, 1.47, now , "Cat1"},
                new object[] { "Altria Group Inc", 83.81, 0.28, 0.34, now , "Cat1"},
                new object[] { "American Express Company", 52.55, 0.01, 0.02, now , "Cat1" },
                new object[] { "American International Group, Inc.", 64.13, 0.31, 0.49, now , "Cat1"},
                new object[] { "AT&T Inc.", 31.61, -0.48, -1.54, now , "Cat2"},
                new object[] { "Boeing Co.", 75.43, 0.53, 0.71, now , "Cat2"},
                new object[] { "Caterpillar Inc.", 67.27, 0.92, 1.39, now , "Cat2"},
                new object[] { "Citigroup, Inc.", 49.37, 0.02, 0.04, now , "Cat2"},
                new object[] { "E.I. du Pont de Nemours and Company", 40.48, 0.51, 1.28, now , "Cat2"},
                new object[] { "Exxon Mobil Corp", 68.1, -0.43, -0.64, now , "Cat13"},
                new object[] { "General Electric Company", 34.14, -0.08, -0.23, now , "Cat3"},
                new object[] { "General Motors Corporation", 30.27, 1.09, 3.74, now , "Cat3"},
                new object[] { "Hewlett-Packard Co.", 36.53, -0.03, -0.08, now , "Cat3"},
                new object[] { "Honeywell Intl Inc", 38.77, 0.05, 0.13, now , "Cat3"},
                new object[] { "Intel Corporation", 19.88, 0.31, 1.58, now , "Cat3"},
                new object[] { "International Business Machines", 81.41, 0.44, 0.54, now, "Cat3" },
                new object[] { "Johnson & Johnson", 64.72, 0.06, 0.09, now , "Cat3"},
                new object[] { "JP Morgan & Chase & Co", 45.73, 0.07, 0.15, now, "Cat3" },
                new object[] { "McDonald\"s Corporation", 36.76, 0.86, 2.40, now , "Cat3"},
                new object[] { "Merck & Co., Inc.", 40.96, 0.41, 1.01, now , "Cat3"},
                new object[] { "Microsoft Corporation", 25.84, 0.14, 0.54, now , "Cat3"},
                new object[] { "Pfizer Inc", 27.96, 0.4, 1.45, now , "Cat6"},
                new object[] { "The Coca-Cola Company", 45.07, 0.26, 0.58, now , "Cat6"},
                new object[] { "The Home Depot, Inc.", 34.64, 0.35, 1.02, now , "Cat6"},
                new object[] { "The Procter & Gamble Company", 61.91, 0.01, 0.02, now , "Cat6"},
                new object[] { "United Technologies Corporation", 63.26, 0.55, 0.88, now , "Cat6"},
                new object[] { "Verizon Communications", 35.57, 0.39, 1.11, now , "Cat6"},
                new object[] { "Wal-Mart Stores, Inc.", 45.45, 0.73, 1.63, now , "Cat6"}
                };
        }
    }
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Simple Array Grid With Paging and Remote Reloading - Ext.NET Examples</title>
    <script type="text/javascript">
        var clickedOnGroup = function (grid, field, value, e) {
            var t = e.getTarget('.Gcheck');
            if (t) {
                var checked = t.checked;
                grid.getStore().each(function (rec, index) {
                    if (rec.get(field) == value) {
                        if (checked) {
                            grid.getSelectionModel().selectRow(index, true);
                        }
                        else {
                            grid.getSelectionModel().deselectRow(index);
                        }
                    }
                });
            }
        };
        var template = '<span style="color:{0};">{1}</span>';   
    </script>
</head>
<body>
    <form id="Form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server" />
    <ext:GridPanel ID="GridPanel1" runat="server" StripeRows="true" Title="Array Grid"
        Width="600" Height="290" AutoExpandColumn="Company">
        <Store>
            <ext:Store ID="Store1" runat="server" OnRefreshData="MyData_Refresh" GroupField="category">
                <Reader>
                    <ext:ArrayReader>
                        <Fields>
                            <ext:RecordField Name="company" />
                            <ext:RecordField Name="price" Type="Float" />
                            <ext:RecordField Name="change" Type="Float" />
                            <ext:RecordField Name="pctChange" Type="Float" />
                            <ext:RecordField Name="lastChange" Type="Date" />
                            <ext:RecordField Name="category" Type="String" />
                        </Fields>
                    </ext:ArrayReader>
                </Reader>
            </ext:Store>
        </Store>
        <Listeners>
            <GroupClick Fn="clickedOnGroup" />
        </Listeners>
        <ColumnModel ID="ColumnModel1" runat="server">
            <Columns>
                <ext:RowNumbererColumn />
                <ext:Column ColumnID="Company" Header="Company" Width="160" DataIndex="company" />
                <ext:Column Header="Price" Width="75" DataIndex="price">
                    <Renderer Format="UsMoney" />
                </ext:Column>
                <ext:Column Header="Change" Width="75" DataIndex="change">
                </ext:Column>
                <ext:Column Header="Change" Width="75" DataIndex="pctChange">
                </ext:Column>
                <ext:Column Header="Cat" Width="75" DataIndex="category">
                </ext:Column>
                <ext:DateColumn Header="Last Updated" Width="85" DataIndex="lastChange" Format="H:mm:ss" />
            </Columns>
        </ColumnModel>
        <View>
            <ext:GroupingView ID="GroupingView1" HideGroupedColumn="true" runat="server" ForceFit="true"
                StartCollapsed="true" GroupTextTpl='<input class="Gcheck" type="checkbox"><span id="ColorCode-{[values.rs[0].data.ColorCode]}"></span>{text} ({[values.rs.length]} {[values.rs.length > 1 ? "Items" : "Item"]})'
                EnableRowBody="true">
            </ext:GroupingView>
        </View>
        <SelectionModel>
            <ext:CheckboxSelectionModel runat="server" />
        </SelectionModel>
        <LoadMask ShowMask="true" />
    </ext:GridPanel>
    </form>
</body>
</html>

Thanks for your support.

**Daniil** · Mar 05, 2013, 1:21 PM

Hi @Daly_AF,

Originally Posted by Daly_AF

- When I click on check all checkbox on the header, groups must be checked either.

I think going through all DOM CheckBoxes and chechkng/unchecking is a single solution.

This method can be helpful to get all CheckBoxes:
http://docs.sencha.com/ext-js/3-4/#!...-method-select

Originally Posted by Daly_AF

- When I check all the rows of a certain group manually, the group checkbox must become checked and if i uncheck at least one row the group check box must become unchecked.

You should listen the Select/Deselect events and check/uncheck a CheckBox accordingly.

Originally Posted by Daly_AF

- Is there any way to prevent groups from collapsing when I check the groups?

Please try the following override (put into the page's <head>).

<ext:ResourcePlaceHolder runat="server" Mode="ScriptFiles" />

<script type="text/javascript">
    Ext.grid.GroupingView.override({
        processEvent: function (name, e) {
            Ext.grid.GroupingView.superclass.processEvent.call(this, name, e);
            var hd = e.getTarget('.x-grid-group-hd', this.mainBody);
            if (hd) {
                // group value is at the end of the string
                var field = this.getGroupField(),
                    prefix = this.getPrefix(field),
                    groupValue = hd.id.substring(prefix.length),
                    emptyRe = new RegExp('gp-' + Ext.escapeRe(field) + '--hd');

                // remove trailing '-hd'
                groupValue = groupValue.substr(0, groupValue.length - 3);

                // also need to check for empty groups
                if (groupValue || emptyRe.test(hd.id)) {
                    this.grid.fireEvent('group' + name, this.grid, field, groupValue, e);
                }
                if (name == 'mousedown' && e.button == 0 && !e.getTarget(".Gcheck")) {
                    this.toggleGroup(hd.parentNode);
                }
            }

        },

        onBeforeRowSelect: Ext.emptyFn
    });
</script>

**Daly_AF** · Mar 06, 2013, 3:45 PM

Thanks for your support , i manged to get all the issues working , and the override is working as expected .

Thread: [CLOSED] Gridpanel with grouping feature , issues with group checkbox.

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