Layoutupdated sender null

2020-02-28 15:27 Nov 25, 2008  LayoutUpdated is going to get fired an awful lot, while SizeChanged gets fired when the object youre interested in has its size changed. It wont get fired if the position of the object changes, but thats probably what you want most of the time. My particular code had a UserControl in a popup,

If you're updating the UI from the EventHandler you attached to the LayoutUpdated event, this will also trigger that event! For example: void sender, EventArgs e) textBlock1. Text changed ; changed! ); will go layoutupdated sender null

Nov 18, 2011 For LayoutUpdated, sender is always nulla null reference (Nothing in Visual Basic), regardless of where the handler is attached. This is to prevent handlers from assigning any meaning to sender, such as implying that it was that specific element that raised the event out of the visual tree.

How can the answer be improved? layoutupdated sender null

Oct 21, 2010  I am trying to attach an event handler to DataGrid LayoutUpdated but the sender seems to be null, anyone has got similar problem? grid. LayoutUpdated OnLayoutUpdated; public void sender, EventArgs e) sender seems to be null here! Thanks. Imported from legacy forums. Posted by Simone (had 966 views) Jun 27, 2016 Quote from MSDN: When you handle LayoutUpdated, do not rely on the sender value. For LayoutUpdated, sender is always null, regardless of where the handler is attached. This is to prevent handlers from assigning any meaning to sender, such as implying that it was that specific element that fired the event out of the visual tree. Jul 15, 2008 The LayoutUpdated event does not have a sender bacause a LayoutUpdated event being fired does NOT refer to a specific element being updated. It is a global event that is fired when any elements in the silverlight application has its layout changed by the layout system. layoutupdated sender null Remarks. For LayoutUpdated, sender is always null, regardless of where the handler is attached. This is to prevent handlers from assigning any meaning to sender, such as implying that it was that specific element that fired the event out of the visual tree. LayoutUpdated implies that something in the overall visual tree has changed, Remarks. When you handle LayoutUpdated, do not rely on the sender value. For LayoutUpdated, sender is always null, regardless of where the handler is attached. This is to prevent handlers from assigning any meaning to sender, such as implying that it was that specific element that raised the event out of the visual tree.

Video Layoutupdated sender null

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Gallery Layoutupdated sender null