Regarding AddOn and Xaml for NTWindow Interface

[Yandychang]

I am trying to change my interface, to be able to change parameters around. But for some reason the compiled window stays blank. It worked before, but I cant seem to figure out the mistake.

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:t="clr-namespace:NinjaTrader.Gui.Tools;assembly=NinjaTrader.Gui">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="0.15*"/>
            <RowDefinition Height="0.15*"/>
            <RowDefinition Height="0.15*"/>
            <RowDefinition Height="0.15*"/>
            <RowDefinition Height="0.15*"/>
            <RowDefinition Height="*"/>
         <!--  <RowDefinition Height="*"/>-->
        </Grid.RowDefinitions>
        <Grid Grid.Row="0">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="0.33*" />
                <ColumnDefinition Width="0.33*" />
                <ColumnDefinition Width="0.33*" />
            </Grid.ColumnDefinitions>
            <!-- 
            For a full reference of the tools you can use in XAML that are provided by NinjaTrader see: http://www.ninjatrader.com/support/helpGuides/nt8/en-us/controls.htm  
            -->
            <t:InstrumentSelector x:Name="instrumentSelector" Grid.Column="0" LastUsedGroup="BlankAddOn" Margin="5"/>
            <t:IntervalSelector x:Name="intervalSelector" Grid.Column="1" HorizontalAlignment="Left" Margin="5" />
            <t:AccountSelector x:Name="accountSelector" Grid.Column="2" Margin="5" />
        </Grid>
          <Grid Grid.Row="1">
            <Grid.RowDefinitions>
                <RowDefinition Width ="0.25*"/>
                <RowDefinition Width ="0.25*"/>
                <RowDefinition Width ="0.25*"/>
                <RowDefinition Width ="0.25*"/>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="0.66*" />
                <ColumnDefinition Width="0.33*" />
            </Grid.ColumnDefinitions>
            
            <Label Content="Neural Trainer" Grid.Row ="0" Grid.Column="0" x:Name="top_Label" />
            <TextBox x:Name="trainpath" Width="275" Margin="10" Grid.Row ="1" Grid.Column ="0"> Directory for Training File</TextBox>
            <Button Name ="brButton" Content="Browse" Margin="5" Grid.Row ="1" Grid.Column ="1"/>
            <TextBox x:Name="evalPath" Width="275" Margin="10" Grid.Row ="2" Grid.Column="0"> Directory for Eval File</TextBox>
            <Button Name="evalBtn" Content ="Browse" Margin ="5" Grid.Row ="2" Grid.Column="1"/>
            <TextBox x:Name="netLocator" Width="275" Margin="10" Grid.Row ="3" Grid.Column="0"> Directory for NetWork</TextBox>
            <Button Name ="netButton" Content="Browse" Margin="5" Grid.Row ="3" Grid.Column="1"/>
          </Grid>
            <!-- Area of Parameters for training-->>
          <Grid Grid.Row ="2">
            <Grid.ColumnDefinitions>
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
            </Grid.ColumnDefinitions>
            <Label Height="30" Content="Epochs:" FontSize="14" Name="epochLbl"  Grid.Column ="0"/>
                <Label Height="30" Content="Species:" FontSize="14" Name="organismLbl"  Grid.Column ="1"/>
                <Label Height="30" Content="Lead:" FontSize="14" Name="leadLbl"  Grid.Column ="2"/>
                <Label Height="30" Content="Lag:" FontSize="14" Name="lagLbl"  Grid.Column ="3"/>
          </Grid>  
      
          <Grid Grid.Row ="3">
            <Grid.ColumnDefinitions>
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
            </Grid.ColumnDefinitions>
                <TextBox Height="30" Width="40" Margin="0,0,0,0" x:Name="epcTxtBx" Text="100" FontSize="14" TextAlignment="Right" VerticalAlignment="Center" Grid.Column ="0"/>
                <TextBox Height="30" Width="40" Margin="0,0,0,0" x:Name="orgTxtBx" Text="500" FontSize="14" TextAlignment="Right" VerticalAlignment="Center" Grid.Column ="1"/>
                <TextBox Height="30" Width="40" Margin="0,0,0,0" x:Name="leadTxtBx" Text="10" FontSize="14" TextAlignment="Right" VerticalAlignment="Center" Grid.Column ="2"/>
                <TextBox Height="30" Width="40" Margin="0,0,0,0" x:Name="lagTxtBx" Text="20" FontSize="14" TextAlignment="Right" VerticalAlignment="Center" Grid.Column ="3"/>
          </Grid>
          <Grid Grid.Row ="4">
             <Grid.ColumnDefinitions>
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
              <ColumnDefinition Width="0.25*" />
            </Grid.ColumnDefinitions>
            <Button Name="trainBtn" Margin="5" Content ="Train"  Grid.Column ="0"/>
            <Button Name ="stopBtn" Content="Stop" Margin="5" Grid.Column ="1" />
          </Grid>
              <Label Grid.Row ="5" Name ="upDate" Margin ="5" Content="Progress" />
    </Grid>
</Page>

Any ideas on what I could be doing wrong?

[Yandychang]

Never Mind, Made it work...