How does C# copy a column name from a dataTable to another dataTable

How does C# copy a column name from a dataTable to another dataTable?

Copy only the column name, not the data under the column:

var newDt = new DataTable(); newDt = oldDataTable.Clone(); // The cloned structure dataTable includes all the dataTable schemas and constraints.

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How does C# copy a column name from a dataTable to another dataTable