只想选择星期一10和星期二。
Monday Tuesday Wed
10 40 9
20 50 6
30 70 4
我到目前为止的代码:
For Each row As DataRow In table.Rows
table2.Rows.Add(row(0), row(1))
Next
这增加了星期一和星期二的全部,但我只想要星期一的1个数据和星期二的1个数据。 ?
起初我以为我需要添加新行?
For Each row As DataColumn In table.Columns
table2.Rows.InsertAt(newRowb, 0)
table2.Rows.Add(row*(0), row(1))
***getting mixed up with rows and columns, as am having errors on *
Next
但是新行有错误,但有没有办法添加特定数据
答案 0 :(得分:1)
您可以使用Linq-to-DataSet
:
Dim filteredRows = From row In table
Where row.Field(Of Int32)("Monday") = 10 _
OrElse row.Field(Of Int32)("Tuesday") = 50
table2 = filteredRows.CopyToDataTable()
无论如何都是使用循环这样做,因为这是手动。使用一些 循环?
当然:
Dim table2 = table.Clone()
For Each row As DataRow In table.Rows
Dim monCount = row.Field(Of Int32)("Monday")
Dim tueCount = row.Field(Of Int32)("Tuesday")
If monCount = 10 OrElse tueCount = 50 Then
Dim newRow = table2.Rows.Add()
newRow.ItemArray = row.ItemArray
End If
Next