Question

我正在尝试创建一个可编辑网格视图的简单示例，并且由于某种原因似乎无法使基础工作正常工作。为什么这个例子在我点击“编辑”时没有显示标签栏和文本框？

ASPX：

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="gv.aspx.vb" Inherits="WebRoot.gv" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
   <title></title>
</head>
<body>
   <form id="form1" runat="server">
   <asp:GridView ID="gv" runat="server" AutoGenerateEditButton="true" AutoGenerateColumns="false">
      <Columns>
         <asp:TemplateField HeaderText="Foo">
            <ItemTemplate>
               <asp:Label ID="Label1" runat="server" Text="Foo" />
               <asp:Label ID="lblQuarter" runat="server" Text='<%#  Eval("fooVal") %>' />
            </ItemTemplate>
            <EditItemTemplate>
               <asp:Label ID="lblQuarter" runat="server" Text='Bar' />
               <asp:TextBox ID="TextBox1" runat="server" Text='<%#  Eval("fooVal") %>'></asp:TextBox>
            </EditItemTemplate>
         </asp:TemplateField>
  </Columns>

代码背后的代码：

Public Class MyFoo
   Public ReadOnly Property FooVal() As String
      Get
         Return _val
      End Get
   End Property
   Private _val As String = String.Empty
   Public Sub New(ByVal val As String)
      _val = val
   End Sub
End Class
Partial Public Class gv
   Inherits System.Web.UI.Page

   Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
      Dim l As New List(Of MyFoo)
      l.Add(New MyFoo("first"))
      l.Add(New MyFoo("second"))

      gv.DataSource = l
      gv.DataBind()
   End Sub


   Private Sub gv_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles gv.RowEditing
      Dim x As String
      x = "foo"
   End Sub
End Class

Answer 1

尝试将OnRowEditing连接到您的gv_RowEditing方法。我很惊讶你没有得到一个错误页面，比如“未处理的被解雇事件RowEditing”。

<asp:GridView ID="gv" OnRowEditing="gv_RowEditing" ...

<强>更新

我的坏。我假设c＃并且忘记检查语言。把它放在你的rowediting方法中，编辑就可以了。但是在取消和更新事件中还有更多工作要做。

    gv.EditIndex = e.NewEditIndex
    Dim l As New List(Of MyFoo)
    l.Add(New MyFoo("first"))
    l.Add(New MyFoo("second"))
    gv.DataSource = l
    gv.DataBind()

此处有更多详情：http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowediting.aspx

可编辑的gridview - 基础知识是什么？

1 个答案: