本文整理匯總了VB.NET中System.Data.DataRowCollection.Contains方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET DataRowCollection.Contains方法的具體用法？VB.NET DataRowCollection.Contains怎麽用？VB.NET DataRowCollection.Contains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.DataRowCollection的用法示例。
在下文中一共展示了DataRowCollection.Contains方法的2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: ColContains
Private Sub ColContains()
Dim table As DataTable = CType(DataGrid1.DataSource, DataTable)
Dim rowCollection As DataRowCollection = table.Rows
If rowCollection.Contains(Edit1.Text) Then
Label1.Text = "At least one row contains " & Edit1.Text
Else
Label1.Text = "No row contains the value in its primary key field"
End If
End Sub示例2: ContainsArray
Private Sub ContainsArray()
' This example assumes that the DataTable object contains two
' DataColumn objects designated as primary keys.
' The table has two primary key columns.
Dim arrKeyVals(1) As Object
Dim table As DataTable = CType(DataGrid1.DataSource, DataTable)
Dim rowCollection As DataRowCollection = table.Rows
arrKeyVals(0) = "Hello"
arrKeyVals(1) = "World"
label1.Text = rowCollection.Contains(arrKeyVals).ToString()
End Sub