public void Flush()

// Insert Cursors are intended for use in CoreHost applications, not Pro Add-ins
public void UsingInsertCursor()
{
  using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file"))))
  using (Table citiesTable = geodatabase.OpenDataset<Table>("name\\of\\cities_table"))
  {
    geodatabase.ApplyEdits(() =>
    {
      using (InsertCursor insertCursor = citiesTable.CreateInsertCursor())
      using (RowBuffer rowBuffer = citiesTable.CreateRowBuffer())
      {
        rowBuffer["State"] = "Colorado";

        rowBuffer["Name"] = "Fort Collins";
        rowBuffer["Population"] = 167830;
        insertCursor.Insert(rowBuffer);

        rowBuffer["Name"] = "Denver";
        rowBuffer["Population"] = 727211;
        insertCursor.Insert(rowBuffer);

        // Insert more rows here
        // A more realistic example would be reading source data from a file

        insertCursor.Flush();
      }
    });
  }
}