DataColumn.AutoIncrementSeed 属性

定义

命名空间:

System.Data

程序集:

System.Data.Common.dll

Source:

DataColumn.cs

获取或设置其 AutoIncrement 属性设置为 true 的列的起始值。 默认值为 0。

public:
 property long AutoIncrementSeed { long get(); void set(long value); };

public long AutoIncrementSeed { get; set; }

member this.AutoIncrementSeed : int64 with get, set

Public Property AutoIncrementSeed As Long

属性值

Int64

AutoIncrement 功能的起始值。

示例

以下示例设置 AutoIncrement、 AutoIncrementSeed和 AutoIncrementStep 属性。

private void AddAutoIncrementColumn()
{
    DataColumn column = new DataColumn();
    column.DataType = System.Type.GetType("System.Int32");
    column.AutoIncrement = true;
    column.AutoIncrementSeed = 1000;
    column.AutoIncrementStep = 10;

    // Add the column to a new DataTable.
    DataTable table = new DataTable("table");
    table.Columns.Add(column);
}

Private Sub AddAutoIncrementColumn()
    Dim column As New DataColumn()
    column.DataType = System.Type.GetType("System.Int32")
    With column
        .AutoIncrement = True
        .AutoIncrementSeed = 1000
        .AutoIncrementStep = 10
    End With

    ' Add the column to a new DataTable.
    Dim table As DataTable
    table = New DataTable
    table.Columns.Add(column)
End Sub

另请参阅

• AutoIncrement
• AutoIncrementStep
• Expression
• ItemArray
• 在 ADO.NET 中使用数据集