Question

方案我正在开展一个webform项目。我创建了一个网页，其中我在更新面板中放置了一个下拉列表和一个gridview。当Dropdown事件OnSelectedIndexChanged提升gridview数据源绑定但同时在chrome控制台窗口中发生错误时。

以下是我的Aspx代码：

<asp:UpdatePanel runat="server">
                <ContentTemplate>
                    <div class="panel-body">
                        <div class="row">
                            <div class="col-md-4">
                                <div class="input-group ah-equal-textbox-size">
                                    <span class="input-group-addon">Select Role</span>
                                    <asp:DropDownList
                                        ID="ddlSelectRole"
                                        runat="server"
                                        CssClass="form-control chosen-select"
                                        AutoPostBack="true"
                                        OnSelectedIndexChanged="ddlSelectRole_SelectedIndexChanged"
                                        >
                                        <asp:ListItem Selected="True" Value="0">Select Role</asp:ListItem>
                                    </asp:DropDownList>
                                </div>
                            </div>
                        </div>
                        <div class="row">
                            <div class="col-md-4 col-md-offset-4 ah-top-bottom-margin9px">
                            </div>
                        </div>
                        <hr />
                            <asp:GridView
                            ID="gvRoleRights"
                            runat="server"
                            ShowHeaderWhenEmpty="true"
                            AutoGenerateColumns="false"
                            EmptyDataText="No Data Found!"
                            ShowFooter="False"
                            BorderStyle="None"
                            CellPadding="3"
                            GridLines="Horizontal"
                            SkinID="AHGridView">
                            <Columns>
                                <asp:BoundField DataField="Role_ID" HeaderText="Role ID" />
                                <asp:BoundField DataField="Form_Name" HeaderText="Form Name" />
                                <asp:BoundField DataField="Can_View" HeaderText="Can View" />
                                <asp:BoundField DataField="Can_Edit" HeaderText="Can Edit" />
                                <asp:BoundField DataField="Can_Prepare_By" HeaderText="Can Prepare" />
                                <asp:BoundField DataField="Can_Change_Status_By" HeaderText="Active" />
                                <asp:BoundField DataField="Prepared_By_ID" HeaderText="Prepared By ID" />
                                <asp:BoundField DataField="Prepared_Date" HeaderText="Prepared By Date" />
                            </Columns>
                        </asp:GridView>
                    </div>
                </ContentTemplate>
            </asp:UpdatePanel>

以下是我的主页Scriptmanager代码：

<asp:ContentPlaceHolder ID="ScriptContentPlaceHolder" runat="server">
            <ajaxToolkit:ToolkitScriptManager ID="ScriptManager1" runat="server" CombineScripts="true">
                <Scripts>
                    <asp:ScriptReference Name="jquery" />
                    <asp:ScriptReference Name="bootstrap" />
                    <asp:ScriptReference Name="respond" />
                    <asp:ScriptReference Name="WebForms.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebForms.js" />
                    <asp:ScriptReference Name="WebUIValidation.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebUIValidation.js" />
                    <asp:ScriptReference Name="MenuStandards.js" Assembly="System.Web" Path="~/Scripts/WebForms/MenuStandards.js" />
                    <asp:ScriptReference Name="GridView.js" Assembly="System.Web" Path="~/Scripts/WebForms/GridView.js" />
                    <asp:ScriptReference Name="DetailsView.js" Assembly="System.Web" Path="~/Scripts/WebForms/DetailsView.js" />
                    <asp:ScriptReference Name="TreeView.js" Assembly="System.Web" Path="~/Scripts/WebForms/TreeView.js" />
                    <asp:ScriptReference Name="WebParts.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebParts.js" />
                    <asp:ScriptReference Name="Focus.js" Assembly="System.Web" Path="~/Scripts/WebForms/Focus.js" />
                    <asp:ScriptReference Name="WebFormsBundle" />
                    <%--Site Scripts--%>
                </Scripts>
            </ajaxToolkit:ToolkitScriptManager>
        </asp:ContentPlaceHolder>

我已经搜索了很多但没有找到任何参考如何解决以下错误。我还附上了一些我在互联网上搜索过的参考链接。如果你们有任何想法如何解决以下错误，请告诉我。

link1

link2

link3

Answer 1

我的猜测是你不需要其中一个：

<asp:ScriptReference Name="WebForms.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebForms.js" />
<asp:ScriptReference Name="MenuStandards.js" Assembly="System.Web" Path="~/Scripts/WebForms/MenuStandards.js" />

尝试一次删除一个，看看错误是否消失。

获取错误：类型Sys.WebForms.Menu已经注册

1 个答案: