0

我的页面中有四个文本框、一个组合框和一个按钮（以及其他一些控件）。根据在文本框中键入的值，相关值在组合框中更新。单击我页面中的提交按钮时，出现以下错误。

“无效的回发或回调参数。在配置或页面中启用事件验证。出于安全目的，此功能验证回发或回调事件的参数是否源自最初呈现它们的服务器控件。如果数据有效且符合预期. 使用该ClientScriptManager.RegisterForEventsValidation方法来注册回发或回调数据以进行验证。"

现在在我添加的页面指令中

<%@Page EnableEentValidation="false">

当我在四个文本框中键入值时，相应的值将出现在 cobobox 中。但是当我选择该组合框值时，所选值将被删除。这是什么原因？

<%@ Page Language="C#" MasterPageFile="~/Main.Master" AutoEventWireup="true" CodeBehind="AddeChecklist.aspx.cs"
    Inherits="LabTrack.WebApplication.Echecklist.AddeChecklist" EnableEventValidation ="false" %>

<%@ Register TagPrefix="Labinal" TagName="AutoCompleteControl" Src="~/UserControls/AutoCompleteEnabledWebUserControl.ascx" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
    <link href="../Styles/CheckListRev.css" rel="stylesheet" type="text/css" />
    <!-- Style for the page -->
    <link href="../Styles/AddeChecklist.css" rel="stylesheet" type="text/css" />
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <asp:ScriptManager ID="ScriptManager1" EnablePartialRendering="true" runat="server">
    </asp:ScriptManager>
    <asp:Panel ID="ErrorMessagePanel" CssClass="ErrorPanel" Visible="true" runat="server">
        <div class="ErrorDiv">
            <asp:BulletedList CssClass="ErrorMessage" ID="ErrorMessageBulletedList" runat="server">
            </asp:BulletedList>
        </div>
    </asp:Panel>
    <div class="PageTitle">
        <asp:Label ID="PageHeaderLabel" runat="server"></asp:Label>
    </div>
    <div class="MainDiv">
        <div style="text-align: center;">
            <div class="PlaceHolder">
                <table id="formTable">
                    <tr>
                        <td>
                            <asp:UpdatePanel runat="server" ID="updatepanelCustomer" UpdateMode="Conditional">
                                <ContentTemplate>
                                    <span class="boldLabelLong">Customer:</span><br />
                                    <asp:TextBox ID="CustomerNameTextBox" Width="200" runat="server"></asp:TextBox>
                                    <asp:HiddenField ID="IxCustomerHiddenField" runat="server" />
                                    <asp:Button ID="customerTriggerbutton" runat="server" Text="Button" Style="display: none;" />
                                </ContentTemplate>
                            </asp:UpdatePanel>
                        </td>
                        <td>
                            <asp:UpdatePanel runat="server" ID="updatepanelProgram" UpdateMode="Conditional">
                                <ContentTemplate>
                                    <span class="boldLabelLong">Program:</span><br />
                                    <asp:TextBox ID="ProgramNameTextBox" Width="200" runat="server"></asp:TextBox>
                                    <asp:Button ID="programTriggerbutton" runat="server" Text="Button" Style="display: none;" />
                                    <asp:HiddenField ID="IxProgramHiddenField" runat="server" />
                                </ContentTemplate>
                                <Triggers>
                                    <asp:AsyncPostBackTrigger ControlID="customerTriggerbutton" EventName="Click" />
                                </Triggers>
                            </asp:UpdatePanel>
                        </td>
                        <td>
                            <asp:UpdatePanel runat="server" ID="updatepanelWorkPackage" UpdateMode="Conditional">
                                <ContentTemplate>
                                    <span class="boldLabelLong">WorkPackage:</span><br />
                                    <asp:TextBox ID="WorkPackageNameTextBox" Width="200" runat="server"></asp:TextBox>
                                    <asp:HiddenField ID="IxWorkPackageHiddenField" runat="server" />
                                    <asp:Button ID="workPackageTriggerbutton" runat="server" Text="Button" Style="display: none;" />
                                </ContentTemplate>
                                <Triggers>
                                    <asp:AsyncPostBackTrigger ControlID="programTriggerbutton" EventName="Click" />
                                </Triggers>
                            </asp:UpdatePanel>
                        </td>
                        <td>
                            <asp:UpdatePanel runat="server" ID="updatepanelActivity" UpdateMode="Conditional">
                                <ContentTemplate>
                                    <span class="boldLabelLong">Activity:</span><br />
                                    <asp:TextBox ID="ActivityNameTextBox" Width="200" runat="server"></asp:TextBox>
                                    <asp:HiddenField ID="IxActivityHiddenField" runat="server" />
                                    <asp:Button ID="activityTriggerbutton" runat="server" Text="Button" Style="display: none;" />
                                </ContentTemplate>
                                <Triggers>
                                    <asp:AsyncPostBackTrigger ControlID="workPackageTriggerbutton" EventName="Click" />
                                    <asp:AsyncPostBackTrigger ControlID="activityTriggerbutton" EventName="Click" />
                                </Triggers>
                            </asp:UpdatePanel>
                        </td>
                    </tr>
                </table>
            </div>
            <div class="PlaceHolder">
                <asp:Label ID="TemplateLabel" Text="Template:" CssClass="ControlLabel" runat="server"></asp:Label>
                <asp:UpdatePanel runat="server" ID="updatepanelTemplate" UpdateMode="Conditional">
                    <ContentTemplate>
                        <asp:DropDownList ID="TemplateSelectDropDownList" runat="server" Width="400" Visible="true"
                            AutoPostBack="true">
                        </asp:DropDownList>
                        <asp:HiddenField ID="IxTemplateHiddenField" runat="server" />
                    </ContentTemplate>
                    <Triggers>
                        <asp:AsyncPostBackTrigger ControlID="workPackageTriggerbutton" EventName="Click" />
                    </Triggers>
                </asp:UpdatePanel>
                <asp:Panel ID="SustainPanelTemplateOwner" Visible="true" runat="server">
                    <div>
                        <asp:Label ID="TemplateOwnerLabel" Text="Owner:" CssClass="ControlLabel" runat="server"></asp:Label>
                        <asp:TextBox ID="TemplateOwnerTextBox" CssClass="controlMargin" Width="400" runat="server"></asp:TextBox>
                    </div>
                </asp:Panel>
                <asp:HiddenField ID="IxDeliverableHiddenField" runat="server" />
                <asp:HiddenField ID="IxReleaseActionHiddenField" runat="server" />
                <asp:HiddenField ID="IxConfigHiddenField" runat="server" />
                <asp:HiddenField ID="IxTemplateOwnerHiddenField" runat="server" />
                <asp:HiddenField ID="TemplateSelectedSnameHiddenField" runat="server" />
                <asp:HiddenField ID="TemplateOwnerSelectedsNameHiddenField" runat="server" />
                <asp:HiddenField ID="DeliverableSelectedHiddenField" runat="server" />
                <div>
                    <asp:Label ID="DeliverableLabel" CssClass="ControlLabel" runat="server" Text="Deliverable:"></asp:Label>
                    <asp:TextBox ID="DeliverableTextBox" CssClass="controlMargin" Width="400" runat="server"></asp:TextBox>
                </div>
                <asp:Panel ID="SustainPanelConfig" Visible="true" runat="server">
                    <div>
                        <asp:Label ID="ConfigurationLabel" runat="server" Text="Configuration:" CssClass="ControlLabel"></asp:Label>
                        <select id="ConfigurationSelect" class="controlMargin">
                            <option></option>
                        </select>
                    </div>
                </asp:Panel>
                <asp:Panel ID="SustainPanelRelease" Visible="true" runat="server">
                    <div>
                        <asp:Label ID="ReleaseActionLabel" CssClass="ControlLabel" runat="server" Text="Release Action:"></asp:Label>
                        <asp:TextBox ID="ReleaseActionTextBox" CssClass="controlMargin" Width="400" runat="server"></asp:TextBox>
                    </div>
                </asp:Panel>
                <asp:Panel ID="SustainPanel" Visible="true" runat="server">
                    <div class="SustainPanelControls">
                        <div>
                            <asp:Label ID="ChangeLabel" Text="Change #: " runat="server"></asp:Label>
                        </div>
                        <div>
                            <asp:TextBox ID="ChangeTextBox" Width="110" runat="server"></asp:TextBox>
                        </div>
                        <div>
                            <asp:Label ID="SupplementLabel" Text="Supplement: " runat="server"></asp:Label>
                        </div>
                        <div>
                            <asp:TextBox ID="SupplementTextBox" Width="80" runat="server"></asp:TextBox>
                        </div>
                        <div>
                            <asp:Label ID="NewWrrLabel" Text="WRR #: " runat="server"></asp:Label>
                        </div>
                        <div>
                            <asp:TextBox ID="NewWrrTextBox" Width="80" runat="server"></asp:TextBox>
                        </div>
                        <div>
                            <asp:Label ID="DddLabel" Text="3D: " runat="server"></asp:Label>
                        </div>
                        <div>
                            <asp:TextBox ID="DddTextBox" Width="80" runat="server"></asp:TextBox>
                        </div>
                    </div>
                    <div>
                        <table id="DesignDataTable2">
                            <tr>
                                <td>
                                    <asp:Label ID="AllFbSheetsWrrLabel" Text="All F/B Sheets w/WRR #:" CssClass="ControlLabel" runat="server"></asp:Label>
                                </td>
                                <td>
                                    <asp:TextBox CssClass="completeControl" ID="AllFbSheetsWrrTextBox" Width="588" Rows="2"
                                        TextMode="MultiLine" runat="server"></asp:TextBox>
                                </td>
                            </tr>
                        </table>
                    </div>
                </asp:Panel>
            </div>
            <div class="EditButtonGroup">
                <input id="EditButton" type="button" value="Edit" class="ButtonSettings" />
                <input id="RemoveButton" type="button" value="-" class="ButtonSettings" />
                <input id="AddButton" type="button" value="+" class="ButtonSettings" />
            </div>
        </div>
        <div class="ViewData">
            <div class="ViewDataDiv">
                <table id="DesignDataTable" class="designDataTable">
                    <tbody>
                    </tbody>
                </table>
            </div>
        </div>
        <div class="submitButtonDiv">
            <asp:Button ID="SubmitButton" runat="server" Text="Button Text" class="submitButtonCreateChecklist" />
        </div>
    </div>
</asp:Content>
4

2 回答 2

1

听起来像是 Viewstate 覆盖值的问题。

尝试直接使用获取值Request.Form[Dropdown.ClientId]

于 2012-06-05T09:37:38.487 回答
1

您正在客户端创建新值，并将它们发送回服务器。

出于安全原因，ASP.NET 实现了“事件验证”。当启用偶数验证时，如果服务器创建一个包含 3 个可能值的组合，它只会在回发时接受这些值。如果您创建不同的值并将其发送回服务器，则会收到您所指的错误。

在这里你有一些信息： Page.EnableEventValidation 属性

如果您知道哪些是在客户端生成的可能值，则可以使用ClientScriptManager.RegisterForEventValidation 方法，或者如果您事先不知道它们，则可以完全禁用验证。

要禁用验证：

通过设置 @Page 指令的 enableEventValidation 属性或 Web.config 文件中 pages 元素的 enableEventValidation 属性来设置 EnableEventValidation 属性。如果在代码中设置此属性，则必须在页面初始化之前设置它。

于 2012-06-05T10:15:03.960 回答