How to send the listview selecteditems to viewmodel....

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C#

WPF

ListView

MVVM

Hello all,

I need to send ListView SelectedItems from view to ViewModel. now I have a code it is getting and sending single SelectedItem from view to ViewModel..
I tried few examples but I not getting required.


here is my ListView window.xaml:

<ListView x:Name="ParameterList" HorizontalAlignment="Stretch" 
                  ItemsSource="{Binding Source={StaticResource SortedParameters}}"
                  SelectionMode="Multiple" SelectedItem="{Binding SelectedParameter}"  
                  Grid.Row="1" Grid.Column="2"
                  Width="200">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Path=Description}" Width="200"/>
                </GridView>
            </ListView.View>
        </ListView>

The SelectedParameter addresses the ViewMode.cs:

private IParameter selectedParameter;
        public IParameter SelectedParameter
        {
            get { return selectedParameter; }
            set
            {
                selectedParameter = value;
                OnPropertyChanged(nameof(SelectedParameter));
            }
        }

When user click the button in the Window.xmal:

<Button x:Name="plotGraph" Grid.Row="0" Content="Plot Graph" Padding="5" Margin="5"
                    HorizontalAlignment="Stretch" VerticalAlignment="Top"
                    Command="{Binding Plotgraph}"/>

Then, I need to Execute the method using those SelectedItems(Plotgraph.cs),

viewModel.GetParameterValues(viewModel.SelectedParameter.Name); 

In ViewModel.cs

public Dictionary<int, double> GetParameterValues(string name)
{
    return PlotParameter = Model.GetParameterValues(name);
}

Help me from this...
Thanks in advance..

What I have tried:

https://github.com/xamarin/recipes/tree/master/cross-platform/xamarin-forms/Controls/multiselect/Multiselect
http://thatcsharpguy.com/post/multiselect-listview-mvvm-en/
http://stackoverflow.com/questions/8460855/selecting-multiple-row-of-items-in-a-listview