Combobox variable call - entity - WPF

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C

WPF

entity-framework

Hello,
I have on a wpf window several combo boxes and would like to add only one function, but I hang at the handover of the Table / Query from the contents to be read.

private void pFillCBO(ComboBox comboBoxName, string strMember, string strValue)
            using (conString = new Entities())
            {
                comboBoxName.ItemsSource  = conString.XXXXX.ToList();
                comboBoxName.DisplayMemberPath = strMember;
                comboBoxName.SelectedValuePath = strValue;
            }

Is it at all that I can pass the table?

Thanks
Ralf

What I have tried:

I had test with different methods example Dataset as variable