【发布时间】：2014-01-23 17:31:04
【问题描述】：
我遇到了OnRowUpdating 事件的问题。它不会将新数据保存在GridView1.EditIndex 行中。只要您按下更新，它就会恢复为旧值。
OnRowEditing 似乎运行正常。
OnRowCancelingEdit 也是如此，它似乎运行正常。
ASPX：
<asp:GridView ID="GridView1" runat="server" AllowSorting="true" AutoPostBack="True" AutoGenerateColumns="True" AutoGenerateEditButton="True" OnRowCancelingEdit="Gridview1_OnRowCancelingEdit" OnRowEditing="Gridview1_OnRowEditing" OnRowUpdating="GridView1_OnRowUpdating"
AllowPaging="True" PageSize="50" OnPageIndexChanging="GridView1_PageIndexChanging">
</asp:GridView>
后面的代码：
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
ViewState("pageIndex") = 1
ViewState("edit") = -1
ShowGrid()
End Sub
Sub ShowGrid()
Dim connStr, cmdStr As String
connStr = connection string works"
cmdStr = "SELECT * FROM OrbitDates;"
Dim ds As New DataSet
Dim dt As New DataTable()
Try
Using conn As New SqlConnection(connStr)
Using cmd As New SqlCommand(cmdStr, conn)
conn.Open()
cmd.ExecuteNonQuery()
Using da As New SqlDataAdapter(cmd)
da.Fill(ds)
dt = ds.Tables(0)
GridView1.EditIndex = Convert.ToInt32(ViewState("edit"))
dt.DefaultView.Sort = ViewState("Sort")
GridView1.DataSource = dt.DefaultView
GridView1.DataBind()
GridView1.PageIndex = Convert.ToInt32(ViewState("pageIndex"))
End Using
conn.Close()
cmd.Dispose()
conn.Dispose()
End Using
End Using
Catch ex As Exception
End Try
End Sub
Protected Sub GridView1_PageIndexChanging(ByVal sender As Object, ByVal e As GridViewPageEventArgs) Handles GridView1.PageIndexChanging
GridView1.PageIndex = e.NewPageIndex
ViewState("pageIndex") = e.NewPageIndex.ToString()
ShowGrid()
End Sub
Protected Sub GridView1_OnRowEditing(ByVal sender As Object, ByVal e As GridViewEditEventArgs)
GridView1.EditIndex = e.NewEditIndex
ViewState("edit") = GridView1.EditIndex
ShowGrid()
End Sub
Protected Sub GridView1_OnRowCancelingEdit(ByVal sender As Object, ByVal e As GridViewCancelEditEventArgs)
GridView1.EditIndex = -1
ViewState("edit") = GridView1.EditIndex
ShowGrid()
End Sub
Protected Sub GridView1_OnRowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs)
Dim connStr, cmdStr As String
connStr = "connection string works"
cmdStr = "UPDATE OrbitDates SET (JD=@JD,Xecl1=@Xecl1,Yecl1=@Yecl1,Zecl1=@Zecl1) WHERE ido=@ido;"
Try
Using conn As New SqlConnection(connStr)
Using cmd As New SqlCommand(cmdStr, conn)
conn.Open()
cmd.Parameters.AddWithValue("@ido", GridView1.Rows(e.RowIndex).Cells(0).Text)
cmd.Parameters.AddWithValue("@JD", GridView1.Rows(e.RowIndex).Cells(1).Text)
cmd.Parameters.AddWithValue("@Xecl1", GridView1.Rows(e.RowIndex).Cells(2).Text)
cmd.Parameters.AddWithValue("@Yecl1", GridView1.Rows(e.RowIndex).Cells(3).Text)
cmd.Parameters.AddWithValue("@Zecl1", GridView1.Rows(e.RowIndex).Cells(4).Text)
cmd.ExecuteNonQuery()
conn.Close()
cmd.Dispose()
conn.Dispose()
End Using
End Using
Catch ex As Exception
Throw ex
End Try
ViewState("edit") = e.RowIndex
ShowGrid()
End Sub
【问题讨论】：
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"I choose to work in aspx.vb rather than aspx because aspx.vb is more flexible and so my code is not viewable to the general public."- 你到底是什么意思？我怀疑你对 ASP.NET 的工作原理有一些基本的误解。