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selection change event getting fired unnessariarly

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GridView
This is a migrated thread and some comments may be shown as answers.
kumar p
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kumar p asked on 09 Jun 2010, 08:50 AM
hi
 here i  am  using  nested  datagrid this is design   of my xaml code

 

 

 

 

 

<

 

 

telerik:RadGridView x:Name="RadGrid1" Grid.Row="1" Grid.Column="0" ScrollViewer.HorizontalScrollBarVisibility ="Disabled" AreRowDetailsFrozen="True" BorderThickness="0" CanUserResizeColumns="False" RowHeight="24" ShowGroupPanel="False" RowIndicatorVisibility="Collapsed" CanUserFreezeColumns="False" SelectionMode="Extended" RowDetailsVisibilityMode="Collapsed" IsReadOnly="True" AutoGenerateColumns="False" RowDetailsVisibilityChanged="RadGrid1_RowDetailsVisibilityChanged" SelectionChanged="RadGrid1_SelectionChanged" RowLoaded="RadGrid1_RowLoaded" RowUnloaded="RadGrid1_RowUnloaded">

 

 

 

 

<telerik:RadGridView.Columns>

 

 

 

 

<telerik:GridViewDataColumn>

 

 

 

 

<telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

<DataTemplate>

 

 

 

 

<Button x:Name="myButton"

 

 

 

Click="ExpandLevel1_Click">

 

 

 

 

<Image x:Name="imgLevel1" Source="Images/left_side.png" Stretch="None" />

 

 

 

 

</Button>

 

 

 

 

</DataTemplate>

 

 

 

 

</telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

</telerik:GridViewDataColumn>

 

<telerik:GridViewDataColumn Header="name" Width="*" >

 

 

 

 

<telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

<DataTemplate>

 

 

 

 

<my:Label Content="{Binding name}" />

 

 

 

 

</DataTemplate>

 

 

 

 

</telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

</telerik:GridViewDataColumn>

 

 

 

 

<telerik:GridViewDataColumn Header="Age" Width="100" >

 

 

 

 

<telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

<DataTemplate>

 

 

 

 

<my:Label Content="{Binding Age}" />

 

 

 

 

</DataTemplate>

 

 

 

 

</telerik:GridViewDataColumn.CellTemplate>

 

 

 

 

</telerik:GridViewDataColumn>

 

 

 

 

<telerik:RadGridView.RowDetailsTemplate>

 

 

 

 

<DataTemplate>

 

 

 

 

<StackPanel x:Name="spLevel2" >

 

 

 

 

</StackPanel>

 

 

 

 

</DataTemplate>

 

 

 

 

</telerik:RadGridView.RowDetailsTemplate>

 

 

 

 

</telerik:RadGridView x: name ="RadGrid2" >

 

</

 

 

StackPanel>

 

 

 

 

</DataTemplate>

 

 

 

 

</telerik:RadGridView.RowDetailsTemplate>

 

 

 

 

</telerik:RadGridView>

 


 in grid1  i am finding grid2 then creating vents for teh grid2

 

if

 

 

(RadGrid2 != null)

 

{

RadGrid2.RowDetailsVisibilityChanged +=

 

new EventHandler<GridViewRowDetailsEventArgs>(RadGrid2_RowDetailsVisibilityChanged);

 

RadGrid2.SelectionChanged +=

 

new EventHandler<SelectionChangeEventArgs>(RadGrid2_SelectionChanged);
}

when i click on the row of my second datagrid  only
RadGrid2_SelectionChanged  events  should be  called
but here  even my RadGrid1 (RadGrid1_SelectionChanged) is getting fired
is there any way i can solve this issue.

any help  would be great
thanks.

 

1 Answer, 1 is accepted

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Milan
Telerik team
answered on 09 Jun 2010, 09:52 AM
Hi kumar p,

SelectionChanged is a RoutedEvent and it will travel up the visual tree - if you make a selection in a child grid the parent grid's SelectionChanged event will also be raised. You can use the event arguments (e.OriginalSource) to determine the original source of the selection event and determine how SelectionChanged will be handled.


Kind regards,
Milan
the Telerik team

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kumar p
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Milan
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