Passing data to the Kids window in Silverlight 4 using MVVM

Question

I have a data table with the implementation of the main details as follows:

<data:DataGrid x:Name="dgData"  Width="600" ItemsSource="{Binding Path=ItemCollection}"
                       HorizontalScrollBarVisibility="Hidden" CanUserSortColumns="False" RowDetailsVisibilityChanged="dgData_RowDetailsVisibilityChanged">
                    <data:DataGrid.Columns>
                        <data:DataGridTextColumn Header="Item" Width="*" Binding="{Binding Item,Mode=TwoWay}"/>
                        <data:DataGridTextColumn Header="Company" Width="*" Binding="{Binding Company,Mode=TwoWay}"/>

                    </data:DataGrid.Columns>
                    <data:DataGrid.RowDetailsTemplate>
                        <DataTemplate>
                            <data:DataGrid x:Name="dgrdRowDetail" Width="400" AutoGenerateColumns="False" HorizontalAlignment="Center" 
                                       HorizontalScrollBarVisibility="Hidden" Grid.Row="1">
                                <data:DataGrid.Columns>
                                    <data:DataGridTextColumn Header="Date" Width="*" Binding="{Binding Date,Mode=TwoWay}"/>
                                    <data:DataGridTextColumn Header="Price" Width="*" Binding="{Binding Price, Mode=TwoWay}"/>
                                    <data:DataGridTemplateColumn>
                                        <data:DataGridTemplateColumn.CellTemplate>
                                            <DataTemplate>
                                                <Button Content="Show More Details" Click="buttonShowDetail_Click"></Button>
                                            </DataTemplate>
                                        </data:DataGridTemplateColumn.CellTemplate>
                                    </data:DataGridTemplateColumn>
                                </data:DataGrid.Columns>
                            </data:DataGrid>
                        </DataTemplate>
                    </data:DataGrid.RowDetailsTemplate>
                </data:DataGrid>

I want to open a child window by clicking a button that shows more detailed product information.

I am using the MVVM pattern. My model contains a method that takes an element name as input and returns information details.

My problem is how should I pass an element to the ViewModel that will receive the part data from the model? And where can I open a new child window? In View or ViewModel?

Answer 1

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- - DomainEdit - .

    public DomainEdit()
    {
        InitializeComponent();

        devm = new DomainEditVM();
        DataContext = devm;
    }

    public DomainEdit(Guid domainId) : this()
    {
        devm.DomainId = domainId;
        devm.GetDomain();
        txtTitle.Text = "Edit Domain";
    }

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Answer 2

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