What is the difference between
Web User Control and
Web Custom Control?
If your control has a lot of static layout, a user control might make sense. If your control is mostly dynamically generated — for instance rows of a data-bound table, nodes of a tree view, or tabs of a tab control — a custom control would be a better choice.
The main differences between the two types are outlined in this table:
|Web user controls||Web custom controls|
|1. Easier to create||1. Harder to create|
|2. Limited support for consumers who use a visual design tool||2. Full visual design tool support for consumers|
|3. A separate copy of the control is required in each application||3. Only a single copy of the control is required, in the global assembly cache|
|4. Cannot be added to the Toolbox in Visual Studio||4. Can be added to the Toolbox in Visual Studio|
|5. Good for static layout||5. Good for dynamic layout|
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