//Get selected persons and bind them with current selected file
private void AddingPersonsToFile(DataGridView dgp)
{
FilePersonKeywordClient client = new FilePersonKeywordClient();
Int32 selectedRowCount = dgp.Rows.GetRowCount(DataGridViewElementStates.Selected); //getting number of selected rows
for (int i = 0; i < selectedRowCount; i++)
{
Console.WriteLine(dgp[0, dgp.SelectedRows[i].Index].Value.ToString());
client.InsertPersonIntoFile(Convert.ToInt32(dgp[0, dgp.SelectedRows[i].Index].Value), listBox_Files.SelectedItem.ToString());
}
client.Close();
}