我在绑定到SQL表的ASP页面上有一个Gridview。我已使用此处描述的方法将Grid更改为使用TemplateFields的默认Label控件，从而将Grid配置为允许多个更新： Bulk Updates to Rows Bound to a GridView
一切正常，直到我进行了更改，以编程方式在页面加载时绑定Gridview查询（目的是使Gridview显示不同的数据，具体取决于当前正在查看页面的用户），如下所述： Bind Gridview programmatically。 进行此更改后，当用户进行更改并单击更新按钮时，页面现在会抛出以下错误：
GridView'GridView1'触发了未处理的事件RowUpdating。
此外，当我尝试进行单行更新时，我收到此错误：
异常详细信息：System.Web.HttpException：GridView“GridView1”触发了未处理的事件RowEditing。
我已经读过很多关于similair问题的线索，但我似乎无法找到解决我的错误的方法。我不知道为什么动态绑定Gridview会导致rowupdating错误。感谢任何支持来解决这个问题。感谢。
以下是代码：
Public Class Input
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
gvbind()
End If
End Sub
Public Sub gvbind()
Dim SqlDataSource1 As New SqlDataSource()
SqlDataSource1.ID = "SqlDataSource1"
Me.Page.Controls.Add(SqlDataSource1)
SqlDataSource1.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings("ConnectionString").ConnectionString
SqlDataSource1.SelectCommand = "SELECT [ID], [Project], [Description], [CAPEX], [Team] FROM [CAPEX]"
'Add Conditional Statements to change view for users/Teams
'SqlDataSource1.SelectCommand = "SELECT [ID], [Project], [Description], [CAPEX] FROM [CAPEX] where [Team] = 'Team1'"
GridView1.DataSource = SqlDataSource1
GridView1.DataBind()
End Sub
Private tableCopied As Boolean = False
Private originalDataTable As System.Data.DataTable
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
If Not tableCopied Then
originalDataTable = CType(e.Row.DataItem, System.Data.DataRowView).Row.Table.Copy()
ViewState("originalValuesDataTable") = originalDataTable
tableCopied = True
End If
End If
End Sub
Protected Sub Up_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Up.Click
originalDataTable = CType(ViewState("originalValuesDataTable"), System.Data.DataTable)
For Each r As GridViewRow In GridView1.Rows
If IsRowModified(r) Then GridView1.UpdateRow(r.RowIndex, False)
Next
' Rebind the Grid to repopulate the original values table.
tableCopied = False
GridView1.DataBind()
End Sub
Protected Function IsRowModified(ByVal r As GridViewRow) As Boolean
Dim currentID As Integer
Dim currentProject As String
Dim currentDescription As String
Dim currentCAPEX As String
currentID = Convert.ToInt32(GridView1.DataKeys(r.RowIndex).Value)
currentProject = CType(r.FindControl("ProjectTextBox"), TextBox).Text
currentDescription = CType(r.FindControl("DescriptionTextBox"), TextBox).Text
currentCAPEX = CType(r.FindControl("CAPEXTextBox"), TextBox).Text
Dim row As System.Data.DataRow = _
originalDataTable.Select(String.Format("ID = {0}", currentID))(0)
If Not currentProject.Equals(row("Project").ToString()) Then Return True
If Not currentDescription.Equals(row("Description").ToString()) Then Return True
If Not currentCAPEX.Equals(row("CAPEX").ToString()) Then Return True
Return False
End Function
这是标记：
<%@ Page Title="Input" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false"
CodeBehind="Input.aspx.vb" Inherits="WebApplication5.Input" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<h2>
Data Entry
</h2>
<p>
Enter Inputs Here<asp:TextBox runat="server" Text='<%# Bind ("Project") %>'
id="TextBox4"></asp:TextBox>
<asp:Table ID="Entry" runat="server">
</asp:Table>
<asp:Button ID="TestButton" runat="server" Text="Test" />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
AllowSorting="True" AllowPaging="True" datakeynames = "ID" Width="502px">
<Columns>
<asp:CommandField ShowEditButton="True" />
<asp:BoundField DataField="ID" readOnly = "true" HeaderText="ID" SortExpression="ID"/>
<asp:TemplateField HeaderText="Project" SortExpression="Project">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Project") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:TextBox ID="ProjectTextBox" runat="server" MaxLength="30"
Text='<%# Bind("Project") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description" SortExpression="Description">
<EditItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Description") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:TextBox ID="DescriptionTextBox" runat="server" MaxLength="150"
Text='<%# Bind("Description") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="CAPEX" SortExpression="CAPEX">
<EditItemTemplate>
<asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("CAPEX") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:TextBox ID="CAPEXTextBox" runat="server" MaxLength="10"
Text='<%# Bind("CAPEX") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [ID], [Project], [Description], [CAPEX] FROM [CAPEX]"
DeleteCommand="DELETE FROM [CAPEX] WHERE [ID] = @ID"
InsertCommand="INSERT INTO [CAPEX] ([ID], [Project], [Description], [CAPEX], [Team]) VALUES (@ID, @Project, @Description, @CAPEX, @Team)"
UpdateCommand="UPDATE [CAPEX] SET [Project] = @Project, [Description] = @Description, [CAPEX] = @CAPEX,[Team] = @Team WHERE [ID] = @ID">
<DeleteParameters>
<asp:Parameter Name="ID" Type="String" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="ID" Type="String" />
<asp:Parameter Name="Project" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="CAPEX" Type="Decimal" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="Project" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="CAPEX" Type="Decimal" />
<asp:Parameter Name="ID" Type="String" />
<asp:Parameter Name="Team" Type="String" />
</UpdateParameters>
</asp:SqlDataSource>
<asp:Button ID="Up" runat="server" Text="Up" />
<asp:SqlDataSource ID="SqlDataSource1" runat="server"></asp:SqlDataSource>
<asp:Table ID="Table1" runat="server" BorderWidth="1" BorderStyle="Solid">
</asp:Table>
</p>
答案 0 :(得分：1)
您在Up_Click拨打电话'GridView1.UpdateRow（）'
来自MSDN文档：
调用此方法还会引发RowUpdated和RowUpdating事件。
所以你需要做的就是提供空处理程序
答案 1 :(得分：0)
添加fnostro关于GridView1.UpdateRow()提升RowUpdated和RowUpdating的答案，显示编辑按钮：
<asp:CommandField ShowEditButton="True" />
将生成一个CommandName="Edit"的按钮。单击此按钮将引发RowEditing事件，您还需要在代码中处理该事件。
作为旁注，由于您的“更新”按钮位于GridView 之外，因此CommandName属性不会自动触发GridView事件。因此，将ID从“更新”更改为“向上”不会产生任何影响，但更改CommandName也不会有任何影响。
答案 2 :(得分：0)
我看到代码隐藏中的SqlDataSource1定义缺少UpdateCommand定义。
说实话，我总是使用SqlDataSource2方法，它就像添加MyDelegate myDeleg = x => myFunc(x);
一样简单，标记就是：
DataSourceID="SqlDataSource2"这样你就可以忘记gridview是否必须在回发中绑定。除非您将gridview放在UpdatePanel中，否则我必须将其绑定，然后 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
AllowSorting="True" AllowPaging="True" DataKeyNames = "ID"
DataSourceID="SqlDataSource2" Width="502px">
放置不正确。
代码If Not IsPostBack Then看起来位于数据绑定控件之外。