SheetViewクラスのAddColumnsメソッドを使用します。列のDataFieldプロパティを指定しないかぎり、列はデータソースに連結されません。
実行例：
データソースに非連結な「合計」列を、最後に追加しました。
FpSpread1.DataSource = new StockList(); //非連結列を追加します int lastCol = FpSpread1.Sheets[0].ColumnCount; FpSpread1.Sheets[0].AddColumns(lastCol, 1); FpSpread1.Sheets[0].Columns[lastCol].Label = "合計"; //「Quantity * UnitPrice」を計算します FpSpread1.Sheets[0].Columns[lastCol].Formula = "G1*I1";
FpSpread1.DataSource = New StockList() '非連結列を追加します Dim lastCol As Integer = FpSpread1.Sheets(0).ColumnCount FpSpread1.Sheets(0).AddColumns(lastCol, 1) FpSpread1.Sheets(0).Columns(lastCol).Label = "合計" '「Quantity * UnitPrice」を計算します FpSpread1.Sheets(0).Columns(lastCol).Formula = "G1*I1"
この例では、データソースとして以下のクラスを使用しています。
[Serializable] public class Stock { public string ProductCode { get; set; } public string ProductName { get; set; } public DateTime StockDate { get; set; } public string NoteNo { get; set; } public DateTime ExpireDate { get; set; } public string LotNo { get; set; } public int Quantity { get; set; } public string Term { get; set; } public double UnitPrice { get; set; } public string Section { get; set; } public string StoreID { get; set; } } [Serializable] public class StockList : List<Stock> { public StockList() { Add(new Stock { ProductCode = "0000001", ProductName = "スイートアーモンド", StockDate = DateTime.Today.AddDays(-9), NoteNo = "D040000004", ExpireDate = DateTime.Today.AddMonths(1), LotNo = "2011092001", Quantity = 200, Term = "本", UnitPrice = 90, Section = "仕入", StoreID = "MYG1001" }); Add(new Stock { ProductCode = "0000001", ProductName = "スイートアーモンド", StockDate = DateTime.Today.AddDays(-9), NoteNo = "D040000004", ExpireDate = DateTime.Today.AddMonths(1), LotNo = "2011092003", Quantity = 400, Term = "本", UnitPrice = 90, Section = "仕入", StoreID = "MYG1001" }); Add(new Stock { ProductCode = "0000001", ProductName = "スイートアーモンド", StockDate = DateTime.Today.AddDays(-6), NoteNo = "D040000001", ExpireDate = DateTime.Today.AddMonths(1), LotNo = "0000001", Quantity = 490, Term = "本", UnitPrice = 90, Section = "製造", StoreID = "MYG1001" }); Add(new Stock { ProductCode = "0000002", ProductName = "グレープシード", StockDate = DateTime.Today.AddDays(-4), NoteNo = "D040000007", ExpireDate = DateTime.Today.AddMonths(2), LotNo = "20111119001", Quantity = 10, Term = "本", UnitPrice = 120, Section = "仕入", StoreID = "MYG1001" }); Add(new Stock { ProductCode = "0000002", ProductName = "グレープシード", StockDate = DateTime.Today.AddDays(-5), NoteNo = "M040000002", ExpireDate = DateTime.Today.AddMonths(2), LotNo = "123", Quantity = 4, Term = "本", UnitPrice = 100, Section = "製造", StoreID = "MYG1001" }); Add(new Stock { ProductCode = "0000003", ProductName = "オリーブ", StockDate = DateTime.Today.AddDays(-9), NoteNo = "D040000006", ExpireDate = DateTime.Today.AddMonths(3), LotNo = "20111119010", Quantity = 9, Term = "本", UnitPrice = 2000, Section = "仕入", StoreID = "MYG1002" }); Add(new Stock { ProductCode = "0000005", ProductName = "馬油", StockDate = DateTime.Today.AddDays(-7), NoteNo = "D040000009", ExpireDate = DateTime.Today.AddYears(1), LotNo = "20111214002", Quantity = 84, Term = "Ｋｇ", UnitPrice = 3200, Section = "仕入", StoreID = "MYG1001" }); Add(new Stock { ProductCode = "0000006", ProductName = "ビーワックス", StockDate = DateTime.Today.AddDays(-2), NoteNo = "D040000011", ExpireDate = DateTime.Today.AddYears(1), LotNo = "20111217004", Quantity = 150, Term = "Ｋｇ", UnitPrice = 1500, Section = "製造", StoreID = "MYG1002" }); Add(new Stock { ProductCode = "0000010", ProductName = "えごま", StockDate = DateTime.Today.AddDays(-3), NoteNo = "D040000008", ExpireDate = DateTime.Today.AddMonths(1), LotNo = "20111120002", Quantity = 52, Term = "本", UnitPrice = 120, Section = "仕入", StoreID = "MYG1002" }); } }
<Serializable> Public Class Stock Public Property ProductCode() As String Public Property ProductName() As String Public Property StockDate() As DateTime Public Property NoteNo() As String Public Property ExpireDate() As DateTime Public Property LotNo() As String Public Property Quantity() As Integer Public Property Term() As String Public Property UnitPrice() As Double Public Property Section() As String Public Property StoreID() As String End Class <Serializable> Public Class StockList Inherits List(Of Stock) Public Sub New() Add(New Stock() With { .ProductCode = "0000001", .ProductName = "スイートアーモンド", .StockDate = DateTime.Today.AddDays(-9), .NoteNo = "D040000004", .ExpireDate = DateTime.Today.AddMonths(1), .LotNo = "2011092001", .Quantity = 200, .Term = "本", .UnitPrice = 90, .Section = "仕入", .StoreID = "MYG1001" }) Add(New Stock() With { .ProductCode = "0000001", .ProductName = "スイートアーモンド", .StockDate = DateTime.Today.AddDays(-9), .NoteNo = "D040000004", .ExpireDate = DateTime.Today.AddMonths(1), .LotNo = "2011092003", .Quantity = 400, .Term = "本", .UnitPrice = 90, .Section = "仕入", .StoreID = "MYG1001" }) Add(New Stock() With { .ProductCode = "0000001", .ProductName = "スイートアーモンド", .StockDate = DateTime.Today.AddDays(-6), .NoteNo = "D040000001", .ExpireDate = DateTime.Today.AddMonths(1), .LotNo = "0000001", .Quantity = 490, .Term = "本", .UnitPrice = 90, .Section = "製造", .StoreID = "MYG1001" }) Add(New Stock() With { .ProductCode = "0000002", .ProductName = "グレープシード", .StockDate = DateTime.Today.AddDays(-4), .NoteNo = "D040000007", .ExpireDate = DateTime.Today.AddMonths(2), .LotNo = "20111119001", .Quantity = 10, .Term = "本", .UnitPrice = 120, .Section = "仕入", .StoreID = "MYG1001" }) Add(New Stock() With { .ProductCode = "0000002", .ProductName = "グレープシード", .StockDate = DateTime.Today.AddDays(-5), .NoteNo = "M040000002", .ExpireDate = DateTime.Today.AddMonths(2), .LotNo = "123", .Quantity = 4, .Term = "本", .UnitPrice = 100, .Section = "製造", .StoreID = "MYG1001" }) Add(New Stock() With { .ProductCode = "0000003", .ProductName = "オリーブ", .StockDate = DateTime.Today.AddDays(-9), .NoteNo = "D040000006", .ExpireDate = DateTime.Today.AddMonths(3), .LotNo = "20111119010", .Quantity = 9, .Term = "本", .UnitPrice = 2000, .Section = "仕入", .StoreID = "MYG1002" }) Add(New Stock() With { .ProductCode = "0000005", .ProductName = "馬油", .StockDate = DateTime.Today.AddDays(-7), .NoteNo = "D040000009", .ExpireDate = DateTime.Today.AddYears(1), .LotNo = "20111214002", .Quantity = 84, .Term = "Ｋｇ", .UnitPrice = 3200, .Section = "仕入", .StoreID = "MYG1002" }) Add(New Stock() With { .ProductCode = "0000006", .ProductName = "ビーワックス", .StockDate = DateTime.Today.AddDays(-2), .NoteNo = "D040000011", .ExpireDate = DateTime.Today.AddYears(1), .LotNo = "20111217004", .Quantity = 150, .Term = "Ｋｇ", .UnitPrice = 1500, .Section = "製造", .StoreID = "MYG1002" }) Add(New Stock() With { .ProductCode = "0000010", .ProductName = "えごま", .StockDate = DateTime.Today.AddDays(-3), .NoteNo = "D040000008", .ExpireDate = DateTime.Today.AddMonths(1), .LotNo = "20111120002", .Quantity = 52, .Term = "本", .UnitPrice = 120, .Section = "仕入", .StoreID = "MYG1002" }) End Sub End Class