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[Solved] ExpandAllHierarchyItems

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GridView

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Joe Lozina asked on 02 Aug 2011, 06:36 AM

Hi

Ive looked at the examples and am unable to get the ExpandAllHierarchyItems working.

Xaml is

<telerik:RadGridView

HorizontalAlignment="Left"

VerticalAlignment="Top"

x:Name="mainListGrid"

ItemsSource="{Binding VillagePrices, Mode=TwoWay}"

AutoGenerateColumns="False"

Width="1140"

Height="520"

AutoExpandGroups="True"

AlternationCount="2"

AlternateRowBackground="#FFF5F5F5"

FontSize="10"

DataLoadMode="Asynchronous"

EnableColumnVirtualization="True"

EnableRowVirtualization="True"

RowIndicatorVisibility="Collapsed"

ShowGroupPanel="False"

IsFilteringAllowed="False"

CanUserFreezeColumns="False"

ShowColumnFooters="False"

CanUserReorderColumns="True"

IsSynchronizedWithCurrentItem="False"

DataLoading="RadGridView1_DataLoading"

>

<telerik:RadGridView.ChildTableDefinitions>

<telerik:GridViewTableDefinition />

</telerik:RadGridView.ChildTableDefinitions>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProductType}" Header="" Width="170" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding UnitCount}" Header="Count" Width="40" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding CurrentPrice}" Header="Current Price" DataFormatString="{}{0:c0}" Width="120" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding MarketPrice}" Header="Market Price" DataFormatString="{}{0:c0}" Width="80" IsVisible="True" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding MarketPercentageChanged}" Header="%" DataFormatString="{}{0:p2}" Width="50" IsVisible="True" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProposedPrice}" Header="Proposed Price" DataFormatString="{}{0:c0}" Width="100" IsVisible="True" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProposedPriceVariance}" Header="Variance" DataFormatString="{}{0:c0}" Width="100" IsVisible="True" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProposedPercentageChanged}" Header="% Change Manual" DataFormatString="{}{0:p2}" Width="100" IsVisible="True" IsReadOnly="False" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProposedMinimum}" Header="Proposed Min" DataFormatString="{}{0:c0}" Width="90" IsVisible="True" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProposedAverage}" Header="Proposed Average" DataFormatString="{}{0:c0}" Width="110" IsVisible="True" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProposedMaximum}" Header="Proposed Max" DataFormatString="{}{0:c0}" Width="110" IsVisible="True" IsReadOnly="True" IsSortable="False" />

</telerik:RadGridView.Columns>

<telerik:RadGridView.HierarchyChildTemplate>

<DataTemplate x:Name="childDataTemplate" >

<telerik:RadGridView x:Name="childGrid"

BorderThickness="0"

ItemsSource="{Binding VillagePriceList}"

CanUserFreezeColumns="False"

AutoGenerateColumns="False"

ShowGroupPanel="False"

ShowColumnHeaders="False"

RowIndicatorVisibility="Collapsed"

IsFilteringAllowed="False"

Padding="68,0,0,0"

EnableColumnVirtualization="False"

IsSynchronizedWithCurrentItem="False"

EnableRowVirtualization="False"

CanUserSelect="False">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding ProductType}" Header="" Width="120" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding UnitCount}" Header="Count" Width="40" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding CurrentPrice}" Header="Current Price" DataFormatString="{}{0:c0}" Width="120" IsReadOnly="True" IsSortable="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding MarketPercentageChanged}" Header="% M" DataFormatString="{}{0:p2}" Width="60" IsVisible="True" IsReadOnly="True" IsSortable="False" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

</DataTemplate>

</telerik:RadGridView.HierarchyChildTemplate>

</telerik:RadGridView>

Code behind is

private void RadGridView1_DataLoading(object sender, Telerik.Windows.Controls.GridView.GridViewDataLoadingEventArgs e)

{

var dataControl = (GridViewDataControl)sender;

if (dataControl.ParentRow != null)

{

dataControl.Loaded -= dataControl_Loaded;

dataControl.Loaded += dataControl_Loaded;

}

void dataControl_Loaded(object sender, RoutedEventArgs e)

{

((GridViewDataControl)sender).ExpandAllHierarchyItems();

}

Regards,
Joe

3 Answers, 1 is accepted

answered on 03 Aug 2011, 02:41 PM

Hello Joe Lozina,

In Silverlig the Loaded event is usually raised before control's template is applied. So that you cannot invoke ExpandAllHierarchyItems on RadGridView's Loaded event, because you won't have any rows to expand. I would advise you to expand each row on RadGridView's RowLoaded event, or alternatively, to invoke ExpandAllHierarchyItems after all the elements have been added to the visual tree.

All the best,
Ivan Ivanov
the Telerik team

Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get now >>

answered on 04 Aug 2011, 09:05 AM

RadGridView-SL4-AR-192.zip

Hi Joe Lozina,

I am attaching a sample project. Please, refer to it.

Best wishes,
Ivan Ivanov
the Telerik team

Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get now >>