DataFrame<R, C>.ColumnIndex Property

public Index<C> ColumnIndex { get; set; }

Public Property ColumnIndex As Index(Of C)
	Get
	Set

public:
property Index<C>^ ColumnIndex {
	Index<C>^ get ();
	void set (Index<C>^ value);
}

member ColumnIndex : Index<'C> with get, set

Property Value

When setting the column index, the length of the new index must be the same as the number of columns in the data frame. Otherwise a DimensionMismatchException is thrown.

Replacing the column index relabels the existing columns. Dataframe-owned column metadata is remapped by ordinal so it follows the same column positions to the new keys.

Reference