Visual C# 14-5. Save only valid rows (lines) captured in the DataGridView to the table

This video shows how to delete incomplete lines with an empty cell from a DataGridView, to save only valid records in the table, for Microsoft Visual Studio 2017, 2019, 2022.
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Use and mention of: DataSet, SQL, Select, Where, DataGridView, CellEndEdit, Boolean function, Bool function, Parametered function, RemoveAt, Clear row, ColumnCount, RowCount, TableAdapter, Convert, ToString, Return, Continue, EndEdit, Question, DialogResult, Error Text, CellClick.