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Editorial Team
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Asked: 2026-05-13T01:46:05+00:00

OK, this is my situation; I have a MasterPage. On the left hand side

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OK, this is my situation;
I have a MasterPage. On the left hand side is a UserControl for navigation. In this UserControl I have another UserControl which shows details for the current “active” selection.

What I want to do;
When a user selects, say, a Customer in the main content area I want to populate pertinent details in the ActiveSelection control (mentioned above). The only approach I’ve found so far is to store the relevant Customer ID in the Session then redirect back to myself. The ActiveSelection control can then retrieve this and do its thing. Far from ideal as the current page gets refreshed and its’ state lost.

Note: Not sure if this is relevant but the content area of the MasterPage consists of a Panel control (rather than a ContentPlaceHolder) and UserControls are dynamically added to this Panel (not my design – of course). Shouldn’t make any difference though…

Thanks in advance!

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1 Answer

  1. Editorial Team

    The answer to my subsequent question (linked below) fills in the last step required to get this working i.e. to have an UpdatePanel and call Update() on this once the event has been captured and the control’s values set.

    ASP.NET AJAX: How can I send information to the client from server-side

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