How to pass two parameters to ViewModel class in Silverlight?

I am studying to use MVVM pattern for my Silverlight application.

Following code is from xaml UI code :

<Button Width="30" 
        Margin="10" 
        Content="Find"
        Command="{Binding Path=GetCustomersCommand, Source={StaticResource customerVM}}"
        CommandParameter="{Binding Path=Text, ElementName=tbName}"/>

<TextBox x:Name="tbName" 
         Width="50" />

<TextBox x:Name="tbID" 
         Width="50" />

And following code is from ViewModel class :

public ICommand GetCustomersCommand
{
    get { return new RelayCommand(GetCustomers) { IsEnabled = true }; }
}

public void GetCustomers(string name, string id)
{
    // call server service (WCF service)
}

I need to pass two parameters, however, can't find out how to开发者_StackOverflow pass two parameters(id and name) to ViewModel class.

I'd like to know if it is possible in xaml code not in the codebehind.

Thanks in advance

---

There's no easy way to do it. Instead, I suggest you make a command with no parameters, and bind box TextBoxes to properties of your ViewModel:

C#

public void GetCustomers()
{
    GetCustomers(_id, _name);
}

private int _id;
public int ID
{
    get { return _id; }
    set
    {
        _id = value;
        OnPropertyChanged("ID");
    }
}

private string _name;
public string Name
{
    get { return _name; }
    set
    {
        _name = value;
        OnPropertyChanged("Name");
    }
}

XAML

<Button Width="30" 
        Margin="10" 
        Content="Find"
        Command="{Binding Path=GetCustomersCommand, Source={StaticResource customerVM}}"/>

<TextBox x:Name="tbName"
         Text="{Binding Path=Name, Source={StaticResource customerVM}, Mode=TwoWay}"
         Width="50" />

<TextBox x:Name="tbID" 
         Text="{Binding Path=ID, Source={StaticResource customerVM}, Mode=TwoWay}"
         Width="50" />