ASP.NET WebForms出现CS0029错误：无法隐式转换string到HtmlGenericControl

Hey there! Let's break down and fix this error you're hitting.

First, let's understand why this is happening: Your <h2> tag has runat="server", which means in your code-behind, Title is an instance of System.Web.UI.HtmlControls.HtmlGenericControl—not a string. If you're trying to set its value with something like:

Title = "New Evaluations Title";

That's where the error hits: the compiler can't automatically turn a string into a full HtmlGenericControl object.

The Solution #

Instead of assigning directly to the control, use one of these properties to set its content:

• For plain text (safe for user input, auto-escapes special characters):

  Title.InnerText = "Updated Evaluations Title";
  

• For HTML-formatted content (only use if you trust the source, to avoid XSS risks):

  Title.InnerHtml = "<strong>Important</strong> Evaluations";
  

Your front-end markup is totally fine—the issue is just how you're interacting with the control in your code-behind. Swap out that direct string assignment with either InnerText or InnerHtml and you should be good to go!

内容的提问来源于stack exchange，提问作者Kyle