GridView+FormView 示范数据新增/修改/删除

来源：cnblogs 发布时间：2008-05-11 收藏投稿字体:【大中小】

Protected Sub FormView1_PreRender()Sub FormView1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles FormView1.PreRender
2        Dim oFormView As FormView
3        Dim oLinkButton As LinkButton
4        Dim oTextBox As TextBox
5
6        oFormView = CType(sender, FormView)
7        If Not oFormView.Visible Then Exit Sub
8
9        Select Case oFormView.CurrentMode
10            Case FormViewMode.Edit '编辑模式
11                '隐藏新增钮
12                oLinkButton = oFormView.FindControl("InsertButton")
13                oLinkButton.Visible = False
14                '显示更新钮
15                oLinkButton = oFormView.FindControl("UpdateButton")
16                oLinkButton.Visible = True
17                '显示 EmployeeID 的 TextBox
18                oTextBox = oFormView.FindControl("txtEmployeeID")
19                oTextBox.Visible = False
20            Case FormViewMode.Insert
21                '显示新增钮
22                oLinkButton = oFormView.FindControl("InsertButton")
23                oLinkButton.Visible = True
24                '隐藏更新钮
25                oLinkButton = oFormView.FindControl("UpdateButton")
26                oLinkButton.Visible = False
27                '显示 EmployeeID 的 TextBox
28                oTextBox = oFormView.FindControl("txtEmployeeID")
29                oTextBox.Visible = True
30        End Select
31    End Sub
当 FormView 执行「新增」、「更新」、「取消」钮的动作后，需要切换回浏览模式，即将 FormView 隐藏，而显示 GridView，相关程序代码如下。

1    /**/''' <summary>
2    ''' 切换为浏览模式。
3    ''' </summary>
4    Private Sub ChangeViewMode()Sub ChangeViewMode()
5        FormView1.Visible = False
6        GridView1.Visible = True
7        GridView1.EditIndex = -1
8    End Sub
9
10    Protected Sub FormView1_ItemCommand()Sub FormView1_ItemCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewCommandEventArgs) Handles FormView1.ItemCommand
11        If e.CommandName.ToUpper = "Cancel".ToUpper Then
12            '取消后，切换为浏览模式
13            ChangeViewMode()
14        End If
15    End Sub
16
17    Protected Sub FormView1_ItemInserted()Sub FormView1_ItemInserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewInsertedEventArgs) Handles FormView1.ItemInserted
18        '新增后，切换为浏览模式
19        ChangeViewMode()
20    End Sub
21
22    Protected Sub FormView1_ItemUpdated()Sub FormView1_ItemUpdated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewUpdatedEventArgs) Handles FormView1.ItemUpdated
23        '更新后，切换为浏览模式
24        ChangeViewMode()
25    End Sub