Performing Select, Insert, Update and Delete with ease in Silverlight 4 using WCF RIA Services

<navigation:Page x:Class="SilverlightWCFRIA.Views.UpdateData" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
           xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
           xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
           mc:Ignorable="d"
           xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
           d:DesignWidth="640" d:DesignHeight="480"
           Title="Update Data">
    <Grid x:Name="LayoutRoot" Width="400" Height="250">

        <Grid.RowDefinitions>
            <RowDefinition ></RowDefinition>
            <RowDefinition ></RowDefinition>
            <RowDefinition ></RowDefinition>
            <RowDefinition ></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="60*">

            </ColumnDefinition >
            <ColumnDefinition Width="70*"></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <sdk:Label Content="Enter student ID to Edit:" Grid.Row="0" FontSize="12" Grid.Column="0"/>
        <TextBox x:Name="searchstudentName" Margin="0" HorizontalAlignment="Left" Grid.Row="0" Height="25"  Width="150" Grid.Column="1"/>
        <Button Width="30" Height="25" x:Name="btngo" Click="btngo_Click" Grid.Row="0" Grid.Column="1" Margin="125,0,0,0" Content="Go" />
        
        <sdk:Label Content="Student Name:" Grid.Row="1" FontSize="12" Grid.Column="0"/>
        <TextBox x:Name="txtstudentName" Margin="0" HorizontalAlignment="Left" Grid.Row="1" Height="25"  Width="200" Grid.Column="1"/>
        <sdk:Label Content="Student Age:" Grid.Row="2" FontSize="12" Grid.Column="0"/>
        <TextBox x:Name="txtstudentage" Margin="0" HorizontalAlignment="Left" Grid.Row="2"   Height="25" Width="200" Grid.Column="1"/>
        <Button Grid.Row="3" Grid.Column="1" Height="30" Width="100" Content="Update" Click="btnupdate_Click" x:Name="btnupdate"  HorizontalAlignment="Left"/>
        
    </Grid>
</navigation:Page>