‘System.Web.UI.Compatibility.CompareValidator’ Could not Load Type

Hi Friends,

I found this problem during my first use of ASP.Net AJaX toolkit. To resolve this problem you have to add the validation.dll file in your bin folder and just commnet your tagMapping block exist in the Web.Config file and add the following:

Hope it will resolve your problem.
Regards
Vijay Modi

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About Vijay Modi

Having 12+ years of experience in web application development. Expertise in various domains like E-Commerce, E-Learning, Insurance. I have expertise in web application development, window application development, Performance improvement, bug fixing etc. I have worked on various Microsoft technologies including ASP.Net, MVC, WebApi, WCF, Entity Framework, WPF, Window Application Development, AWS, Azure, AngularJS 2.0 / 1.5.2, .NetCore framework, jQuery. I am believing in quality work and achieving deadlines. Also like to work on new technologies and quick learner.
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4 Responses to ‘System.Web.UI.Compatibility.CompareValidator’ Could not Load Type

  1. Roger Harwood says:

    Absolute champion. this resolved my issue. Thank you very much.

  2. Alex says:

    It does not solve the whole problem. AnimationExtender from Ajaxtoolkit still does not work?

  3. Casey says:

    Thanks a bunch!

  4. Mike says:

    Rock on!

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