private void ListForm_KeyDown(object sender, KeyEventArgs e) { Keys keys1 = e.KeyCode; if (keys1 != Keys.Escape) { switch (keys1) { case Keys.Add: { if (this.dgList.Font.Size < 15f) { this.dgList.Font = new Font(this.dgList.Font.FontFamily, this.dgList.Font.Size + 1f); } return; } case Keys.Separator: { return; } case Keys.Subtract: { if (this.dgList.Font.Size > 7f) { this.dgList.Font = new Font(this.dgList.Font.FontFamily, this.dgList.Font.Size - 1f); } return; } } } else if (this.FolderId != 0) { this.FolderId = 0; this.FolderName = StockDB.LookupFolderName(this.FolderId); } }