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Xamarin.Form FlowListView - NullReferenceException when refresh the list

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up vote 2 down vote favorite Steps to reproduce: Load the collection from database or another source Remove a item from database Refresh the list using Pull-to-Refresh for example Result: App crashes. Observations: If the new refresh returns the same quantity of items, so the app doesn't crash; If the new refresh returns zero items, so the app doesn't crash; If I leave the page and navigate to it again, the error does not occur Versions: DLToolkit.Forms.Controls.FlowListView: 2.0.11 Xamarin.Forms: 3.4.0.1008975 Error: 11-20 23:38:07.111 I/MonoDroid(10001): System.NullReferenceException: Object reference not set to an instance of an object. 11-20 23:38:07.111 I/MonoDroid(10001): at Xamarin.Forms.Internals.DataTemplateExtensions.CreateContent (Xamarin.Forms.DataTemplate self, System.Object ...

removing page borders

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up vote 0 down vote favorite I'm unable to remove/hide page borders on the document in latex . do mention any package that could get the job done or any other trick. you could refer to the attached image to clearly understand what I'm asking about. packages used: documentclass[11pt,a4paper,openright]{report} usepackage{geometry} usepackage[english]{babel} usepackage[utf8]{inputenc} usepackage{comment} usepackage{romannum} usepackage{placeins} usepackage{tabu} usepackage{afterpage} usepackage{tabularx} pdftex share | improve this question edited 7 mins ago Stefan Pinnow 19.2k 8 31 75 ...