冠霖的部落格

GridView合併儲存格之後，處理「隔行變底色（AlternatingRowStyle）」的問題

http://forums.microsoft.com/MSDN-CHT/ShowPost.aspx?PostID=2608665&SiteID=14

會把GridView左邊的第一行格子，
若上下格皆有相同的內容，自動變成 "同一格"
 

就是底下粗體字介紹的， GridView1.Rows(第幾列).Cells(0).RowSpan = 數字，代表上下合併幾格？
 

請參考
 

Protected Sub GridView1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.PreRender
        '==參考資料： http://epaper.blueshop.com.tw/board/show.asp?subcde=BRD20061225110536B4G&fumcde=FUM20050124192253INM
        Dim i As Integer = 1
        Dim wkItem As GridViewRow

        For Each wkItem In GridView1.Rows
            If CInt(wkItem.RowIndex) = 0 Then
                wkItem.Cells(0).RowSpan = 1              
            Else
                If wkItem.Cells(0).Text.Trim() = GridView1.Rows(CInt(wkItem.RowIndex) - i).Cells(0).Text.Trim() Then
                    GridView1.Rows(CInt(wkItem.RowIndex) - i).Cells(0).RowSpan += 1
                    i = i + 1
                    wkItem.Cells(0).Visible = False
                Else
                    GridView1.Rows(CInt(wkItem.RowIndex)).Cells(0).RowSpan = 1
                    i = 1
                End If
            End If
        Next
    End Sub