Change properties of controls from inherited styles in wpf xaml - wpf

Question

I have these styles defined:
<Style x:Key="ImgButton" TargetType="Button">
<Setter Property="Background" Value="Transparent"></Setter>
<Setter Property="Height" Value="30"></Setter>
</Style>
<Style x:Key="ImgButtonWithText" TargetType="{x:Type Button}" BasedOn="{StaticResource ImgButton}">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Image Name="ButtonImage" Stretch="Uniform" Height="20" Width="20" Source="">
</Image>
<TextBlock Name="ButtonText" Margin="4,0" VerticalAlignment="Center" Text=""></TextBlock>
</StackPanel>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
I want to create another style, LoginButtonWithText (shown below), that is based on ImgButtonWithText, and which sets the value of the Source property of the ButtonImage control in the ImgButtonWithText style. I want to do the same with the Text property of the ButtonText textblock.
<Style x:Key="LoginButtonWithText" TargetType="{x:Type Button}" BasedOn="{StaticResource ImgButtonWithText}">
<Setter Property="ToolTip" Value="Login"></Setter>
<Setter Property="IsDefault" Value="True"></Setter>
//How do I set the Image Source value and TextBlock Text value here?
</Style>
I found this question, but it doesn't appear to be quite exactly what I'm looking for. How do I change the value of child controls from an inherited style, or am I doing it all wrong?

Answer 1

It seems that what I want to do is not exactly possible, but I've done the next best thing in defining an image button style to use in all styles that inherit from from ImgButtonWithText:
<Style x:Key="ImgButton" TargetType="Button">
<Setter Property="Background" Value="Transparent"></Setter>
<Setter Property="Height" Value="30"></Setter>
</Style>
<Style x:Key="ButtonImage" TargetType="Image">
<Setter Property="Height" Value="20"></Setter>
<Setter Property="Width" Value="20"></Setter>
<Setter Property="Stretch" Value="Uniform"></Setter>
</Style>
<Style x:Key="ButtonText" TargetType="TextBlock">
<Setter Property="Margin" Value="4,0"></Setter>
<Setter Property="VerticalAlignment" Value="Center"></Setter>
</Style>
<Style x:Key="LoginButtonWithText" TargetType="{x:Type Button}" BasedOn="{StaticResource ImgButton}">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Image Name="ButtonImage" Style="{StaticResource ButtonImage}" Source="../Images/login.png">
</Image>
<TextBlock Name="ButtonText" Style="{StaticResource ButtonText}" Text="Let's Go"></TextBlock>
</StackPanel>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>