What are Custom Control and User Control?

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1.What are Custom Control and User Control?

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Custom Controls are controls generated as compiled code (Dlls); those are easier to use and can be added to the toolbox. Developers can drag and drop controls to their web forms. Attributes can be set at design time. We can easily add custom controls to Multiple Applications (If Shared Dlls). If they are private, then we can copy to dll to bin directory of web application and then add reference and can use them. User Controls are very much similar to ASP include files, and are easy to create. User controls can’t be placed in the toolbox and dragged - dropped from it. They have their design and code-behind. The file extension for user controls is ascx.

That’s a good question that came up after the series in my blog. Someone asked why one should use a Custom Control instead of a User Control? Hence, let’s extend the series and discuss that. I apologize for the delay with this post. I should have explained this at the start of the series, but actually, my goal was to explain how to create and use a Custom Control in Silverlight.

It is better to do it later than never. Also, you are now familiar with Custom Control creation.

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