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POMigrating from ASP.NET 4 website project to web application project in Visual Studio 2010 Causing all controls to throw error?
 

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  1. POMigrating from ASP.NET 4 website project to web application project in Visual Studio 2010 Causing all controls to throw error?
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    <p>I recently updated my VS2010 website project from .NET 3.5 to 4.0. Everything was working fine in the website project. Today I decided to migrate the website to a web application project as I have learned this is the best way to work in .NET. I split out all my class files into a separate class library and copied all my other content into my new project. Then I updated all the references and web.config. </p> <p><strong>When I build the class library, everything works great.</strong> </p> <p>The problem is happening when I try to build/debug the web application project. It is acting like all the controls are missing and it is also throwing a bunch of compile errors about the public properties I have in my master pages.</p> <p>Control errors:</p> <blockquote> <p>"The name 'INSERT CONTROL NAME HERE' does not exist in the current context"</p> </blockquote> <p>Master page errors:</p> <blockquote> <p>'System.Web.UI.MasterPage' does not contain a definition....</p> </blockquote> <p>It is giving these errors for every single control and master page property in my entire solution.</p> <p>I notice when I add a new web.form to this project, it also adds a filename.aspx.designer.cs file in addition to the .aspx and .aspx.cs file. My existing files do not have these extra files since they were created in a different .NET version.</p> <p>Anyone have an idea on how to overcome these issues? </p> <p><strong>UPDATE:</strong> It seems I was missing the step where I need to right click on the new application folder and select "Convert to web application". I just did that and it seems to be a little bit better... </p> <p>Now it is choking on Literals that are inside single quotes:</p> <pre><code>&lt;div class='&lt;asp:Literal ID="CssClassLiteral" runat="server"&gt;&lt;/asp:Literal&gt;'&gt; </code></pre> <p>It doesn't see this literal when it does the conversion... Is the above valid code or should I implement that functionality another way?</p>
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    1. CORegarding your updated issue - I wouldn't do it that way. Either give that div an id and runat="server" and update the class that way, or use an asp:panel.
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    2. COThanks... I just converted it over to use a public property - eg <%# CssClass %>
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