I noticed that you asked the same question about achieving multi-line header text in RadVirtualGrid in your other thread. Note that RadGridView and RadVirtualGrid are similar controls and they have similar formatting events when customizing cells/rows.
In RadGridView there are CellFormatting/ViewCellFormatting and RowFormattng/ViewRowFormatting events. Please refer to the following documentation articles that would give more information about these events:
If you want to wrap the header text in RadGridView you can use the TextWrap property of the cell element in the ViewCellFormatting event which is triggered for the header cells.
I hope this information helps. If you have other questions do not hesitate to contact me.
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