我正在尝试从数据表中删除网格视图中选定的行,但它似乎没有删除。如果语句 Table.Rows.Count = 0 不起作用,我正在尝试在网格视图中使用一行。
Protected Sub GridView1_RowCommand(sender As Object, e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
Dim index As Integer = Convert.ToInt32(e.CommandArgument)
Dim Table As New DataTable
Table = GridView1.DataSource
Dim iOriPrice As Double
iOriPrice = Table.Rows(index).Item("sPrice")
Table.Rows(index).Delete()
'reset table and set to gridview
If Table.Rows.Count = 0 Then
Table.Reset()
GridView1.DataSource = Table
GridView1.DataBind()
lblTotalAm.Text = ""
lblTotalMsg.Text = "Shopping Cart is empty"
Session.Add("BuyTable", Table)
btnBuyNow.Visible = False
Else
'calculate total sum and
Dim newTotal As Double
newTotal = Convert.ToDouble(lblTotalAm.Text) - iOriPrice
lblTotalAm.Text = newTotal
Session.Add("BuyTable", Table)
GridView1.DataSource = Table
GridView1.DataBind()
End If
End Sub