Exception using content presenter
Type 'System.Windows.Controls.ContentPresenter' does not have a content property. Specify the name of the property to set, or add a ContentPropertyAttribute or TypeConverterAttribute on the type.
Below is the XAML
<ComboBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<CheckBox IsChecked="{Binding IsSelected}" Content="{Binding Series}" Width="50" VerticalAlignment="Center" Checked="CheckSeries_Checked" Unchecked="CheckSeries_UnChecked" />
</StackPanel>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
Well the only guess possible in this case is that you are trying to assign "content" property instead of "Content" with capital C. If it's not then post your XAML code please.