What do you understand by Delegate Control in SharePoint?

By Delegate Control in SharePoint we can add a particular piece of code or control within the master page without affecting the code written there or writing any specific code within the master page, in simple it can be said to be a control containing a child control.

At run time, this control accepts the union of control elements declared at the server farm, Web application, site collection, and Web site levels. The control that has the lowest sequence number is added to the control tree by means of the DelegateControl. In the case of a sequence tie, the order of controls is arbitrary.

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