1. How to change cell style and add trigger
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2. How to set column name in code behind, cannot add x:Name
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3. Get compile error to create datagrid style in App.axaml
   Not sure whether render is slow for large data. For WPF, I will set as below
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   Isnt require these setting / do not need / is other setting for Avalonia DataGrid?

4. How to set style for datagrid that set at App.axaml
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For issue 1, there is change cell style from link
But I want change individual column instead whole datagrid

For issue 2, 3 and 4 I cannot find resource