DataGrid RowMinimum Property

The RowMinimum property specifies the minimum number of rows the grid should display, regardless of data size. Only applicable if ReadOnly is 1.

This just gives nice grid lines when the grid is empty or very small. When deleting rows, a new empty row is appended if necessary to keep the minimum.

The default is 10.

It is left up to the application to remove any undesired trailing empty rows.