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[Solved] Hiding column in hierarchical grid: formatting issues

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Grid

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

Matt asked on 13 Jul 2010, 04:17 PM

I have a hierarchical grid where the parent and the children all use the same column headers such as follows. Everything looks fine when I show the Action column. When I hide the Action column, however, the column's contents remain in the child rows (e.g., where the Type is Child in the example below) and the formatting is messed up (see below).

ActionColumn.Visible = true;

ID Parent Name Type Action

1 - Note Parent O:E:D

2 1 Reply Child O:E

3 2 Reply Child O:E

4 - Note Parent O:E:D

ActionColumn.Visible = false;

ID Parent Name Type

1 - Note Parent

2 1 Reply Child O:E

3 2 Reply Child O:E

4 - Note Parent

I'm setting the grdNotes.Columns.FindByUniqueName("Actions").Visible = ShowActionColumn (where ShowActionColumn is a bool property set by the user preferences) in the Page_Load event.

What else needs to be done to hide the contents of the child row's column contents? (I've already tried setting toolbar.visible=false, but to no avail.)

FWIW, here's the definition of the grid:

<telerik:RadGrid ID="grdNotes" runat="server" OnColumnCreated="grdNotes_ColumnCreated"

OnItemCreated="grdNotes_ItemCreated" OnItemDataBound="grdNotes_ItemDataBound"

OnNeedDataSource="grdNotes_NeedDataSource" OnPreRender="grdNotes_PreRender" AutoGenerateColumns="false"

SkinID="HierarchicalGrid" GridLines="None" AllowPaging="false" AllowCustomPaging="True"

ShowStatusBar="True" EnableLinqExpressions="True" PageSize="20" Width="100%">

<HeaderContextMenu EnableTheming="True">

<CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>

</HeaderContextMenu>

<ClientSettings Selecting-AllowRowSelect="true" Resizing-AllowColumnResize="true">

<ClientEvents OnRowSelected="RowSelected" OnRowContextMenu="NoteContextMenu" OnRowCreated="RowCreated"

OnRowDblClick="grdNotes_OnRowDblClick" OnColumnResized="ResizeAllColumns" OnGridCreated="PageLoad" />

</ClientSettings>

<PagerStyle Position="Bottom" AlwaysVisible="True" Mode="NextPrevAndNumeric" Wrap="False"

BackColor="White" Font-Size="Large" />

<MasterTableView HierarchyDefaultExpanded="true" HierarchyLoadMode="Client" AllowSorting="true"

DataKeyNames="Id,ParentId,Token,IsRoot,Replies,NoteCreator" ClientDataKeyNames="Id,ParentId,Token,IsRoot,Replies,NoteCreator"

NoDetailRecordsText="" EnableNoRecordsTemplate="False" Width="100%">

<SelfHierarchySettings ParentKeyName="ParentId" KeyName="Id" MaximumDepth="20" />

<Columns>

<telerik:GridBoundColumn DataField="Id" HeaderText="Id" SortExpression="Id" UniqueName="Id"

ReadOnly="True" HeaderStyle-Width="10%">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Title" HeaderText="Title" SortExpression="Title"

UniqueName="Title" HeaderStyle-Width="20%" />

<telerik:GridBoundColumn DataField="Body" HeaderText="Body" SortExpression="Body"

UniqueName="Body" HeaderStyle-Width="40%" />

<telerik:GridBoundColumn DataField="CreatedBy" HeaderText="Created By" SortExpression="CreatedBy"

UniqueName="CreatedBy" HeaderStyle-Width="15%" />

<telerik:GridBoundColumn DataField="CreatedDate" HeaderText="Created On" SortExpression="CreatedDate"

UniqueName="CreatedOn" HeaderStyle-Width="15%" />

<telerik:GridBoundColumn DataField="ParentId" HeaderText="Parent Id" SortExpression="ParentId"

UniqueName="ParentId" Visible="false" />

<telerik:GridBoundColumn DataField="Token" HeaderText="Token" SortExpression="Token"

UniqueName="Token" Visible="true" />

<telerik:GridBoundColumn DataField="IsRoot" HeaderText="IsRoot" SortExpression="IsRoot"

UniqueName="IsRoot" Visible="false" />

<telerik:GridBoundColumn DataField="Replies" HeaderText="Replies" SortExpression="Replies"

UniqueName="Replies" Visible="false" />

<telerik:GridBoundColumn DataField="NoteCreator" HeaderText="NoteCreator" SortExpression="NoteCreator"

UniqueName="NoteCreator" Visible="false" />

<telerik:GridTemplateColumn UniqueName="Actions" HeaderStyle-Width="150" HeaderText="Actions">

<ItemTemplate>

<telerik:RadToolBar ID="rtbNoteActions" runat="server" SkinID="ActionToolbar" OnButtonClick="NotesGridToolbarButtonClicked"

OnClientButtonClicking="NoteActionToolbarClicking">

<Items>

<telerik:RadToolBarButton Text="Properties" CommandName="Properties" ImageUrl="~/Images/page_view.gif" />

<telerik:RadToolBarButton Text="Reply" CommandName="Reply" ImageUrl="~/Images/page_edit.gif" />

<telerik:RadToolBarButton Text="Security" CommandName="Security" ImageUrl="~/Images/shield16.gif" />

<telerik:RadToolBarButton Text="Delete" CommandName="Delete" ImageUrl="~/Images/delete16.gif" />

</Items>

</telerik:RadToolBar>

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</MasterTableView>

<FilterMenu EnableTheming="True">

<CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>

</FilterMenu>

</telerik:RadGrid>

2 Answers, 1 is accepted

answered on 19 Jul 2010, 12:22 PM

Hi guys,

You can hide the desired column recursively:

public void HideColumnRecursive(GridTableView tableView, string ColumnName)

{

GridItem[] nestedViewItems = tableView.GetItems(GridItemType.NestedView);

tableView.GetColumn(ColumnName).Visible = false;

foreach (GridNestedViewItem nestedViewItem in nestedViewItems)

foreach (GridTableView nestedView in nestedViewItem.NestedTableViews)

if (nestedView.HasDetailTables)

HideColumnRecursive(nestedView, ColumnName);

}

HideColumnRecursive(RadGrid1.MasterTableView, "FirstName");

I hope this helps.

Regards,
Daniel
the Telerik team

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