c# - asp.net: RequiredFieldValidator in TemplateFiled for DetailsView does not work at run time -


i'm trying add validator template in detailsview control, @ run time encounter error:

server error in '/' application.

webforms unobtrusivevalidationmode requires scriptresourcemapping 'jquery'. please add scriptresourcemapping named jquery(case-sensitive). description: unhandled exception occurred during execution of current web request. please review stack trace more information error , originated in code.

exception details: system.invalidoperationexception: webforms unobtrusivevalidationmode requires scriptresourcemapping 'jquery'. please add scriptresourcemapping named jquery(case-sensitive).

source error:

an unhandled exception generated during execution of current web request. information regarding origin , location of exception can identified using exception stack trace below.

below, program in visual studio 2017.

<%@ page language="c#" autoeventwireup="true" codebehind="inserttitlebytemplate.aspx.cs" inherits="webappaspazdataconn.inserttitlebytemplate" %>  <!doctype html>  <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server">     <title></title> </head> <body>     <form id="form1" runat="server">         <div>              <asp:detailsview id="detailsview1" runat="server" autogeneraterows="false" datakeynames="title_id" datasourceid="sqldatasource1"                 oniteminserted="detailview_iteminsert" onitemcommand="detailview_itemcommand"                 defaultmode="insert" height="50px" width="364px" >                 <fields>                     <asp:boundfield datafield="title" headertext="title" sortexpression="title" />                     <asp:templatefield headertext="price">                         <edititemtemplate>                              <asp:textbox id="price" runat="server"                                 text='<%# bind("price") %>' />                             <br />                             <asp:requiredfieldvalidator id="requiredfieldvalidator1" runat="server" controltovalidate="price" errormessage="requiredfieldvalidator"></asp:requiredfieldvalidator>                              <br />                         </edititemtemplate>                     </asp:templatefield>                     <asp:templatefield headertext="publish date">                         <edititemtemplate >                             <asp:textbox id="pub_date" runat="server"                                  text='<%# bind("pubdate") %>' />                         </edititemtemplate>                     </asp:templatefield>                     <asp:boundfield datafield="notes" headertext="notes" sortexpression="notes" />                     <asp:commandfield showinsertbutton="true" />                 </fields>             </asp:detailsview>             <asp:sqldatasource id="sqldatasource1" runat="server" connectionstring="<%$ connectionstrings:mybookstoreconnectionstring1 %>" deletecommand="delete [titles] [title_id] = @title_id" insertcommand="insert [titles] ([pub_id], [au_id], [title], [price], [pubdate], [notes]) values (@pub_id, @au_id, @title, @price, @pubdate, @notes)" providername="<%$ connectionstrings:mybookstoreconnectionstring1.providername %>" selectcommand="select [title_id], [pub_id], [au_id], [title], [price], [pubdate], [notes] [titles]" updatecommand="update [titles] set [pub_id] = @pub_id, [au_id] = @au_id, [title] = @title, [price] = @price, [pubdate] = @pubdate, [notes] = @notes [title_id] = @title_id">                 <deleteparameters>                     <asp:parameter name="title_id" type="int32" />                 </deleteparameters>                 <insertparameters>                     <asp:parameter name="pub_id" type="int32" />                     <asp:parameter name="au_id" type="int32" />                     <asp:parameter name="title" type="string" />                     <asp:parameter name="price" type="decimal" />                     <asp:parameter name="pubdate" type="datetime" />                     <asp:parameter name="notes" type="string" />                 </insertparameters>                 <updateparameters>                     <asp:parameter name="pub_id" type="int32" />                     <asp:parameter name="au_id" type="int32" />                     <asp:parameter name="title" type="string" />                     <asp:parameter name="price" type="decimal" />                     <asp:parameter name="pubdate" type="datetime" />                     <asp:parameter name="notes" type="string" />                     <asp:parameter name="title_id" type="int32" />                 </updateparameters>             </asp:sqldatasource>         </div>     </form> </body> </html>

check if web.config has following set properly:

<appsettings>   <add key="validationsettings:unobtrusivevalidationmode" value="none" /> </appsettings>

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