wpf databinding and x:Arrays

I try to make some databinding involving an x:Array defined in the resources, but somehow, it doesn't work even the code is compiling. In the resources, I define an array of Strings this way:

<x:Array x:Key="ArrayReportType" Type="{x:Type sys:String}">
    <sys:String>Energy Export</sys:String>
    <sys:String>Cost Center Report</sys:String>
</x:Array>

I've also a collection of objects. One of the property is called "ReportType" and is an integer/enum. So I'd like to make a databinding to show the corresponding string to the ReportType instead of the int/enum. I tried this line, but it doesn't work (the second line causes the pb):

<DataGridTextColumn Header="Name" Binding="{Binding Name}"/>
<DataGridTextColumn Header="Type"
                    Binding="{Binding Source={StaticResource ArrayReportType}, Path=[{Binding ReportType}]}" />

I'm sure, I'm close to the solution. If I write directly "Path=[1]", then it'开发者_运维问答s correct. During runtime, I receive this error:

System.Windows.Data Error: 40 : BindingExpression path error: '[]' property not found on 'object' ''String[]' (HashCode=14199578)'. BindingExpression:Path=[{Binding ReportType}]; DataItem='String[]' (HashCode=14199578); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')

Any help would be appreciated.

---

Ok to use a DataGridComboBoxColumn?

<DataGridComboBoxColumn Header="Type"
                        ItemsSource="{Binding Source={StaticResource ArrayReportType}}">
    <DataGridComboBoxColumn.EditingElementStyle>
        <Style TargetType="{x:Type ComboBox}">
            <Setter Property="SelectedIndex" Value="{Binding ReportType}" />
        </Style>
    </DataGridComboBoxColumn.EditingElementStyle>
    <DataGridComboBoxColumn.ElementStyle>
        <Style TargetType="{x:Type ComboBox}">
            <Setter Property="SelectedIndex" Value="{Binding ReportType}" />
        </Style>
    </DataGridComboBoxColumn.ElementStyle>
</DataGridComboBoxColumn>

Update
Readonly text cell

<DataGridComboBoxColumn Header="Type"
                        ItemsSource="{Binding Source={StaticResource ArrayReportType}}"
                        IsReadOnly="True">
    <DataGridComboBoxColumn.ElementStyle>
        <Style TargetType="{x:Type ComboBox}">
            <Setter Property="SelectedIndex" Value="{Binding ReportType}" />
        </Style>
    </DataGridComboBoxColumn.ElementStyle>
</DataGridComboBoxColumn>

---

Maybe you can resolve this with a dedicated converter.

Something like that?

<DataGridTextColumn 
    Header="Type"
    Text="{Binding Converter={StaticResource IndexToArrayItemConverter}, ConverterParameter={StaticResource ArrayReportType}, Path=ReportType}"/>

Converter code skipped for being so obvious