本文整理匯總了VB.NET中System.Data.DataColumnCollection.Add方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET DataColumnCollection.Add方法的具體用法？VB.NET DataColumnCollection.Add怎麽用？VB.NET DataColumnCollection.Add使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Data.DataColumnCollection的用法示例。
在下文中一共展示了DataColumnCollection.Add方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: AddColumn
Private Sub AddColumn()
' Get the DataColumnCollection from a table in a DataSet.
Dim columns As DataColumnCollection = _
DataSet1.Tables("Prices").Columns
Dim column As DataColumn = columns.Add()
With column
.DataType = System.Type.GetType("System.Decimal")
.ColumnName = "Total"
.Expression = "UnitPrice * Quantity"
.ReadOnly = True
.Unique = False
End With
End Sub示例2: AddDataColumn
Private Sub AddDataColumn()
' Get the DataColumnCollection from a DataTable in a DataSet.
Dim columns As DataColumnCollection = _
DataSet1.Tables("Orders").Columns
Dim column As New DataColumn()
With column
.DataType = System.Type.GetType("System.Decimal")
.ColumnName = "ItemPrice"
.Caption = "Price"
.ReadOnly = False
.Unique = False
.DefaultValue = 0
End With
columns.Add(column)
End Sub示例3: AddColumn
Private Sub AddColumn()
' Get the DataColumnCollection from a table in a DataSet.
Dim columns As DataColumnCollection = _
DataSet1.Tables("Prices").Columns
Dim column As DataColumn = columns.Add("Total")
With column
.DataType = System.Type.GetType("System.Decimal")
.ReadOnly = True
.Expression = "UnitPrice * Quantity"
.Unique = False
End With
End Sub示例4: AddColumn
Private Sub AddColumn()
Dim columns As DataColumnCollection = _
DataSet1.Tables("Orders").Columns
' Add a new column and return it.
Dim column As DataColumn = columns.Add( _
"Total", System.Type.GetType("System.Decimal"))
column.ReadOnly = True
column.Unique = False
End Sub示例5: AddColumn
Private Sub AddColumn()
' Get the DataColumnCollection of a table in a DataSet.
Dim columns As DataColumnCollection = _
DataSet1.Tables("Orders").Columns
' Add a new column and return it.
Dim column As DataColumn = _
columns.Add("Total", System.Type.GetType( _
"System.Decimal"), "Price + Tax")
column.ReadOnly = True
column.Unique = False
End Sub