If you have an older version installed on your computer and you are ready to upgrade to the newer version, login to www.devexpress.com/clientcenter for download/registration information. If you have lost or forgotten your login credentials, feel free to contact us at email@example.com. When corresponding with us, make certain that you include the original Email address used when you first purchased the appropriate license. Please remember that DevExpress licenses all of its controls per developer so that any programmer using our control must acquire a separate license regardless of organizational affiliation.
As far as i know the DevExpress v7.x.x does not support IE11 (and it is quite strange to expect that components developed more than 7 years ago (2007) would correctly support all the latest browsers).This browser is supported starting from the 12.2.5 and 13.1.8 versions. Please refer to DevExpress ASP.NET components - Browser versions support history for more information.For now I suggest that update your components to resolve this issue.
The attached project is written in Visual Studio 2012. The express version should be enough. Also you will need a Microsoft SQL Server 2012, Express or and more advanced version will be just fine. The database is part of the project and it will be automatically mounted by VS. You can change this easily be creating your own database and changing the connection string in the web config. Last but not least you will need the 12.2.5 version of DevExpress ASP.NET controls installed on your machine. If you do have a more recent version, upgrading the project should be easy. Check this article about how to get the DevExpress controls and on how to eventually upgrade the project -Excel-style-Adding-notes-to-grid-cell. 2b1af7f3a8