this worked for me;

WebHierarchicalDataGrid.GridView.Columns(0).Hidden = True

Hi,

I kind of forgot that this was the HierarchicalGrid.  If you set it on the WHDG itself, you are setting it on the band.  You would have to call WebHierarchicalDataGrid.RefreshBehaviors() to get it down.  Or you could set it yourself on WebHierarchicalDataGrid.GridView.Columns

-Dave

NOPE! that didnt help. hiding column still not working.

heres my corrected script where the behaviors sections were combined

        <ig:WebHierarchicalDataGrid ID="WebHierarchicalDataGrid" runat="server"
            Height="500px" Width="100%" 
            AutoGenerateBands="False"
            AutoGenerateColumns="False"
            StyleSetName="Default"
            DataKeyFields="t4pkid"
            EnableDataViewState="True">
            <GroupingSettings EnableColumnGrouping="True">
                <ColumnSettings>
                    <ig:ColumnGroupingSetting ColumnKey="BoundColumn_2" />
                    <ig:ColumnGroupingSetting ColumnKey="BoundColumn_3" />
                    <ig:ColumnGroupingSetting ColumnKey="BoundColumn_4" />
                    <ig:ColumnGroupingSetting ColumnKey="BoundColumn_6" />
                    <ig:ColumnGroupingSetting ColumnKey="BoundColumn_7" />
                </ColumnSettings>
                <RemoveButton AltText="Ungroup Column"></RemoveButton>
            </GroupingSettings>
            <Columns>
               <ig:TemplateDataField Key="ItemSelector" Width="8px" >
                    <ItemTemplate>
                        <asp:CheckBox ID="chkItemSelector" runat="server" />
                    </ItemTemplate>
                </ig:TemplateDataField>
                <ig:BoundDataField DataFieldName="szVendorName" Key="BoundColumn_1">
                    <Header Text="Vendor" />
                </ig:BoundDataField>
                <ig:BoundDataField DataFieldName="szVendStore" Key="BoundColumn_2">
                    <Header Text="Store" />
                </ig:BoundDataField>
                <ig:BoundDataField DataFieldName="szSysType" Key="BoundColumn_3">
                    <Header Text="SysType" />
                </ig:BoundDataField>
                <ig:BoundDataField DataFieldName="AppType" Key="BoundColumn_4">
                    <Header Text="AppType" />
                </ig:BoundDataField>
                <ig:BoundDataField DataFieldName="type" Key="BoundColumn_5">
                    <Header Text="PullType" />
                </ig:BoundDataField>
                <ig:BoundDataField DataFieldName="szCnvStatus" Key="BoundColumn_6">
                    <Header Text="Status" />
                </ig:BoundDataField>
                <ig:BoundDataField DataFieldName="szCnvKStatus" Key="BoundColumn_7">
                    <Header Text="Supp Status" />
                </ig:BoundDataField>
                <ig:TemplateDataField Key="BoundColumn_8" >
                    <ItemTemplate>
                        <asp:LinkButton ID="lnkSelect" runat="server"
                         OnCommand="lnkSelect_OnCommand"
                        CommandName="select"
                        CommandArgument='<%# DataBinder.Eval(CType(Container, Infragistics.Web.UI.TemplateContainer).DataItem, "t4pkid")%>'
                        ><%# DataBinder.Eval(CType(Container, Infragistics.Web.UI.TemplateContainer).DataItem, "t4pkid")%></asp:LinkButton>
                    </ItemTemplate>
                    <Header Text="CnvID" />
                </ig:TemplateDataField>
            </Columns>

            <CollapseButton AltText="Collapse Row"></CollapseButton>

            <ExpandButton AltText="Expand Row"></ExpandButton>
            <Behaviors>
                <ig:RowSelectors Enabled="false"></ig:RowSelectors>
                <ig:Sorting>
                    <ColumnSettings>
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_4" />
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_6" />
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_7" />
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_8" />
                    </ColumnSettings>
                </ig:Sorting>
            </Behaviors>
        </ig:WebHierarchicalDataGrid>

I just noticed that I have two behavior tags in the markup. Let me combine them. That surely cant be helping

David,

It works when I set hidden on the aspx. Doesn't otherwise, on any column, even a non template field.

head statement has runat server set appropriately.

<h

ead id="Head1" runat="server">
<title>WebCTS Client Summary</title>
<script type="text/javascript" src="includes\windows.js"></script>
</head>

            <CollapseButton AltText="Collapse Row"></CollapseButton>

            <ExpandButton AltText="Expand Row"></ExpandButton>
            <Behaviors>
                <ig:Sorting>
                    <ColumnSettings>
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_4" />
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_6" />
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_7" />
                        <ig:SortingColumnSetting ColumnKey="BoundColumn_8" />
                    </ColumnSettings>
                </ig:Sorting>
            </Behaviors>
        </ig:WebHierarchicalDataGrid>