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Cannot hide 'expand' indicator for nested tables with no items using SelfHierarchySettings

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Grid

This is a migrated thread and some comments may be shown as answers.

Paul asked on 17 Jul 2008, 01:58 AM

Using the below declarations ...

    
            <telerik:RadGrid runat="server" id="grdClients"  
        
                    OnNeedDataSource="grdClients_NeedDataSource" 
        
                    OnItemCreated="grdClients_ItemCreated" 
        
                    Skin="Default2006" 
        
                    AutoGenerateColumns="False" 
        
                    AllowPaging ="True" 
        
                    AllowSorting="True" 
        
                    PageSize="8"  
        
                    GridLines="None"  
        
                    ShowStatusBar="False" 
        
                    Width="100%" > 
        
                    <ExportSettings> 
        
                        <Excel Format="Html" /> 
        
                    </ExportSettings> 
        
                    <PagerStyle Mode="NextPrevAndNumeric"></PagerStyle> 
        
                    <ClientSettings AllowExpandCollapse="true" />  
        
                    <MasterTableView DataKeyNames="Id, SuperClientId"> 
        
                        <SelfHierarchySettings ParentKeyName="SuperClientId" KeyName="Id" MaximumDepth="0" /> 
        
                        <Columns> 
        
                            <telerik:GridHyperLinkColumn 
        
                                DataTextField="Id" 
        
                                DataTextFormatString="edit"  
        
                                UniqueName="colEditbasePage"  
        
                                DataNavigateUrlFormatString="editClient.aspx?id={0}"  
        
                                DataNavigateUrlFields="id"> 
        
                            </telerik:GridHyperLinkColumn> 
        
                            <telerik:GridHyperLinkColumn 
        
                                DataTextField="Id" 
        
                                DataTextFormatString="deactivate"  
        
                                UniqueName="colDeactivateClient"  
        
                                DataNavigateUrlFormatString="?deactivateid={0}"  
        
                                DataNavigateUrlFields="Id"> 
        
                            </telerik:GridHyperLinkColumn> 
        
                            <telerik:GridBoundColumn 
        
                                DataField="CompanyName" 
        
                                DataType="System.String" 
        
                                HeaderText="Company Name" 
        
                                SortExpression="CompanyName" 
        
                                UniqueName="colCompanyName" > 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridBoundColumn 
        
                                DataField="City" 
        
                                DataType="System.String" 
        
                                HeaderText="City" 
        
                                SortExpression="City" 
        
                                UniqueName="colCity" > 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridBoundColumn 
        
                                DataField="Country" 
        
                                DataType="System.String" 
        
                                HeaderText="Country" 
        
                                SortExpression="Country" 
        
                                UniqueName="colCountry" > 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridTemplateColumn HeaderText="Roles I fill"> 
        
                                 <ItemTemplate> 
        
                                    <table cellpadding="1" cellspacing="1" class="customTable"> 
        
                                        <tr> 
        
                                            <td style="width: 50%"> 
        
                                                <%# getRoleIndicator((int)DataBinder.Eval(Container.DataItem, "Id"), Settings.Default.role_clientCGC)%> 
        
                                            </td> 
        
                                            <td style="width: 50%"> 
        
                                                <%# getRoleIndicator((int)DataBinder.Eval(Container.DataItem, "Id"), Settings.Default.role_clientCC)%> 
        
                                            </td> 
        
                                        </tr> 
        
                                    </table> 
        
                                </ItemTemplate> 
        
                            </telerik:GridTemplateColumn> 
        
                            <telerik:GridBoundColumn 
        
                                DataField="NumOfRequestsBought" 
        
                                DataType="System.Int32" 
        
                                HeaderText="Number of Requests Purchased" 
        
                                SortExpression="NumOfRequestsBought" 
        
                                UniqueName="colNumOfRequestsBought" > 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridBoundColumn 
        
                                DataField="NumOfRequestsUsed" 
        
                                DataType="System.Int32" 
        
                                HeaderText="Number of Requests Used" 
        
                                SortExpression="NumOfRequestsUsed" 
        
                                UniqueName="colNumOfRequestsUsed" > 
        
                            </telerik:GridBoundColumn> 
        
                            <telerik:GridCheckBoxColumn 
        
                                DataField="PurchasedApprovals" 
        
                                HeaderText="Purchased Approvals"  
        
                                AllowSorting="true" 
        
                                UniqueName="colPurchasedApprovals" > 
        
                            </telerik:GridCheckBoxColumn> 
        
                            <telerik:GridCheckBoxColumn 
        
                                DataField="PurchasedAgreements" 
        
                                HeaderText="Purchased Agreements"  
        
                                AllowSorting="true" 
        
                                UniqueName="colPurchasedAgreements" > 
        
                            </telerik:GridCheckBoxColumn> 
        
                        </Columns> 
        
                    </MasterTableView> 
        
                </telerik:RadGrid>

.... I've tried to programmatically hide the 'plus' sign next to top level nodes with no children nodes using this c# ....

    
            public void Page_PreRenderComplete(object sender, EventArgs e) 
        
                    { 
        
                        HideExpandColumnRecursive(grdClients.MasterTableView); 
        
                    } 
        
                    public void HideExpandColumnRecursive(GridTableView tableView) 
        
                    { 
        
                        GridItem[] nestedViewItems = tableView.GetItems(GridItemType.NestedView); 
        
                        foreach (GridNestedViewItem nestedViewItem in nestedViewItems) 
        
                        { 
        
                            foreach (GridTableView nestedView in nestedViewItem.NestedTableViews) 
        
                            { 
        
                                if (nestedView.Items.Count == 0) 
        
                                { 
        
                                    TableCell cell = nestedView.ParentItem["ExpandColumn"]; 
        
                                    cell.Controls[0].Visible = false; 
        
                                    nestedViewItem.Visible = false; 
        
                                } 
        
                                if (nestedView.HasDetailTables) 
        
                                    HideExpandColumnRecursive(nestedView); 
        
                                } 
        
                            } 
        
                        } 
        
                    }

Line 14 above ALWAYS indicates that the "nestedView.Items.Count" equals zero. I know for a fact that some of the nodes have more than one item in their nested views. I kn ow this because they show themselves when I comment out line 3 in the C#.

Any help would be greatly appreciated.

Paul

Cannot hide 'expand' indicator for nested tables with no items using SelfHierarchySettings

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