How to Command Property Bind in Silverlight 3.0 using MVVM Pattern

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Hi All,

I am new in silverlight 3.0 ,I want to Command Property bind using MVVM Pattern in Silverlight 3.0.

I have found some solution in google as below
1.
a. add in xaml - xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
b.

<Button x:Name="Submit" Content="Submit"    ClickMode="Press" Grid.Row="4" >
           <i:Interaction.Triggers>
               <i:EventTrigger EventName="Click">
                   <i:InvokeCommandAction Command=""
                               CommandParameter="{Binding Click, ElementName=Submit}"/>
               </i:EventTrigger>
           </i:Interaction.Triggers>
           <!--</i:KeyTriggerFiredOn>
               <i:EventTrigger EventName="Click">
                   <ei:CallMethodAction   TargetObject="{Binding}" MethodName="ShowCustomer"/>
               </i:EventTrigger>
           </i:Interaction.Triggers>-->
       </Button>

2.

<Button x:Name="Submit" Content="Submit" ClickMode="Press" Command="Submit" Grid.Row="4" ></Button>

Above code is also not working. However Command Property is not in Silverlight 3.0


Can you please suggest me so that i can bind Command Property easily in Silverlight 3.0