Populate data in ListView

Hi,

I have created a listview as follows:

<Window x:Class="MainWindow" x:Name="frmMain"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
    Title="MainWindow" Margin="0,0,0,0" Height="350" Width="635.59" WindowStyle="None" WindowStartupLocation="CenterScreen" BorderThickness="0,0,0,0" ResizeMode="NoResize">

<Grid>
<ListView Name="listviewProgress" Margin="0,143,0,0">
                <ListView.Background>
                    <LinearGradientBrush EndPoint="0.5,1" MappingMode="RelativeToBoundingBox" StartPoint="0.5,0">
                        <GradientStop Color="Black" Offset="0"/>
                        <GradientStop Color="White" Offset="0.188"/>
                    </LinearGradientBrush>
                </ListView.Background>
                <ListView.View>
                  <GridView >
                    <GridViewColumn Header="Column 1" Width="65"></GridViewColumn>                 
                    <GridViewColumn Header="Column 2" Width="65"></GridViewColumn>                 
                  </GridView>                  
                </ListView.View>   
            </ListView>
</Grid>
</window>

How can I add data to Column 1 and Column 2 in listview. All the examples I find on net is of C#. Please guide me with a simple example on how to do it using vb.

Thanks in Advance :)