how select multiple row using shift and Ctrl key in datagridview C# - Stack Overflow
Selection | DataGrid Control for Windows Forms | Syncfusion
C# Tutorial 21: Display selected row from datagridview to TextBox in C# - YouTube
How to transfer selected row(s) in dgv1 of Form1 to dgv2 of Form2 and come to select others then save under the previously added in dataGridView2 - Microsoft Q&A
DataGridView Printing by Selecting Columns and Rows - CodeProject