In WPF how can I bind the dropdown in grid resource, am using 2 combobox in grid resource ?

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WPF

In Grid Resource am using

DataTemplate 

with 2 combobox to shown workweek and year, I tried bind data in

combobox 

but its not working , Please help me resolve this problem.

I tried combobox.content in cs file, there is no option to use combobox in cs.file
Not able to bind data in DataTemplate --

combobox wpf c#

What I have tried:

<Grid.Resources>
            <!--DataTemplate for Published Date column defined in Grid.Resources.  PublishDate is a property on the ItemsSource of type DateTime -->
            <DataTemplate x:Key="DateTemplateAlpha" >
                <StackPanel Width="100" Height="auto" Orientation="Horizontal">
                    <ComboBox  Name="cmbAlphaYear" HorizontalAlignment="Left" VerticalAlignment="Top" Width="50" Height="18" FontSize ="15"
                      Background="FloralWhite" Text="Select Year" 
                   ItemsSource="{Binding Path=DataContext.YearList, RelativeSource={RelativeSource AncestorType={x:Type Window}}}" DisplayMemberPath="Year" SelectedValuePath="Year"/>

                    <ComboBox  Name="cmbAlphaWW" HorizontalAlignment="Left" VerticalAlignment="Top" Width="50" Height="18" FontSize ="15"
                      Background="FloralWhite" Text="Select WorkWeek"
                    DisplayMemberPath="skuName" SelectedValuePath="skuId"/>
                </StackPanel>
            </DataTemplate>
</Grid.Resources>

<datagrid x:name="dgData" autogeneratecolumns="False" margin="58,124,64,40" canuseraddrows="False">
<datagrid.columns>
<datagridtextcolumn header="Config" binding="{Binding Config}" isreadonly="True" width="*">
<datagridtemplatecolumn header="Alpha" x:name="Alpha" celltemplate="{StaticResource DateTemplateAlpha}" width="100">
<datagridtemplatecolumn header="Beta" x:name="Beta" celltemplate="{StaticResource DateTemplateBeta}" width="100">
<datagridtemplatecolumn header="PV" x:name="PV" celltemplate="{StaticResource DateTemplatePv}" width="100">