WebForms Unobtrusivevalidationmode needs "jquery" scriptresourcemapping

Error message:

WebForms Unobtrusivevalidationmode needs "jquery" scriptresourcemapping. Please add a scriptresourcemapping named jquery (case-sensitive). Description: An unhandled exception occurred during the execution of the current WEB request.           Check the stack trace information For more information about the error and the source of the error in your code.
exception Details: System.InvalidOperationException:WebForms unobtrusivevalidationmode requires "jquery" Scriptresourcemapping. Please add a scriptresourcemapping named jquery (case-sensitive).
Source Error:

执行当前 Web 请求期间生成了未经处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。

Stack trace:  

[Invalidoperationexception:webforms Unobtrusivevalidationmode needs "jquery" scriptresourcemapping. Please add a scriptresourcemapping named jquery (case-sensitive). ] System.Web.UI.ClientScriptManager.EnsureJqueryRegistered () +2365285 System.Web.UI.WebControls.BaseValidator.RegisterUnobtrusiveScript (+11 ) System.Web.UI.WebControls.BaseValidator.OnPreRender (EventArgs e) +9641449 System.Web.UI.Control.PreRenderRecursiveInternal () +83 System.Web.UI.Control.PreRenderRecursiveInternal () + 155 System.Web.UI.Control.PreRenderRecursiveInternal () +155 System.Web.UI.Page.ProcessRequestMain ( Boolean Includestagesbeforeasyncpoint, Boolean includestagesafterasyncpoint) +974

Version information: Microsoft. NET Framework Version: 4.0.30319; ASP. NET version: 4.5.27.0

Here's how to fix it

Method One:

Modify the Web. config file as follows:

<configuration>

<appSettings>

<add key= "Validationsettings:unobtrusivevalidationmode" value= "None"/>

</appSettings>

......

</configuration>

Method Two:

Modifying the global Application class Global.asax

1. Add assembly reference: Using System.Web.UI;

2. Add the following code to the Application_Start method of class global:

ScriptManager.ScriptResourceMapping.AddDefinition ("jquery",

New Scriptresourcedefinition

 {

Path = "~/scripts/jquery-1.7.2.min.js",

Debugpath = "~/scripts/jquery-1.7.2.min.js",

Cdnpath = "Http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.4.1.min.js",

Cdndebugpath = "Http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.4.1.js"

 }

);

3. Create a new Scripts folder in the solution project directory and put the file jquery-1.7.2.min.js

The following two methods are for informational purposes only and are helpful for understanding the causes of errors!

Method Three:

Add the following code to the Page_Load method of the ASPX page:

Unobtrusivevalidationmode = Unobtrusivevalidationmode.none;

Method Four:

Add the file AspNet.ScriptManager.jQuery.dll to the project reference. This method resolves the error, but causes the validation control to not work.

WebForms unobtrusivevalidationmode requires "jquery" scriptresourcemapping