How to fire event from button inside datagrid

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C#

C#4.0

Silverlight4

Hello All,


I'm using datagrid in code and fires selection changed event of datagrid and as well delete button in datagrid having click event.

My problem is when i click on button it fires selection changed event of grid and on next click delete event of button.That means for delete button click i have to press mouse clicks two times.

Here is my Code:

<sdk:DataGrid FontSize="10" IsReadOnly="True" AutoGenerateColumns="False" Grid.ColumnSpan="2" Margin="1,3,0,8" Name="lstMotionAreaDetails" ScrollViewer.HorizontalScrollBarVisibility="Auto" SelectionMode="Single" TabIndex="30" ToolTipService.ToolTip="Stored Motion Information" SelectionChanged="lstMotionAreaDetails_SelectionChanged">
                            <sdk:DataGrid.Columns>
                                <sdk:DataGridTextColumn Binding="{Binding Sr, Mode=TwoWay}" Header="#" Width="30" />
                                <sdk:DataGridTextColumn Binding="{Binding regionName, Mode=TwoWay}" Header="Name" Width="110" />
                                <sdk:DataGridTextColumn Binding="{Binding sensitivity, Mode=TwoWay}" Header="Sensitivity" Width="75" />
                                <sdk:DataGridTemplateColumn Header="Action" Width="55">
                                    <sdk:DataGridTemplateColumn.CellEditingTemplate>
                                        <DataTemplate>
                                            <Grid>
                                                <Button Height="26" Name="btnDeleteArea" Width="26" CommandParameter="{Binding SelectedItem, ElementName=dataGrid}" Click="btnDeleteArea_Click">
                                                    <Image Name="imgDelete" Height="25" Source="/LocalStoreConfiguration;component/Camera_Configuraion/images/delete.png" Width="25" />
                                                </Button>
                                            </Grid>
                                        </DataTemplate>
                                    </sdk:DataGridTemplateColumn.CellEditingTemplate>
                                </sdk:DataGridTemplateColumn>
                            </sdk:DataGrid.Columns>
                        </sdk:DataGrid>