Skip to main content

ListView - make selected item visible don't work in all cases

Did you ever try to use the ListView for Windows 8 Applications? If you had a more complicated scenario where you need to ensure that the selected item from your code is visible maybe you had the following problem… How can I make the selected item visible? If I have a lot of items in my scroll list than the selected item will not be visible when we select it.
In this way we select the ‘i’ element of the list. Also the set() method unselect the rest of the items that were selected already. To be able to show it in the visible part of the list we need to call the ensureVisible() method after we set it.
But in more complicated cased you will notify that this will not work. Even if the ensureVisible() method is called nothing will happen. Usually this case appears when the method is called in a “callback” or in a complete, error or progress of a promise. Even if you try o the ensureVisible in a msSetImmediate it will not work:
msSetImmediate(function(){ listView.ensureVisible(i); });
A fix for this problem is using the indexOfFirstVisible. This property of the list view gives us the possibility to set the index of the first visible element. The working code would look like this:
msSetImmediate(function(){ listView.indexOfFirtsElement = i; });
I hope that I could help you.


  1. I tried this and indexOfFirstElement is undefiend

    1. You can find references about this method here:


Post a Comment

Popular posts from this blog

ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded

Today blog post will be started with the following error when running DB tests on the CI machine:
threw exception: System.InvalidOperationException: The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See for more information. at System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance(String providerTypeName, String providerInvariantName) This error happened only on the Continuous Integration machine. On the devs machines, everything has fine. The classic problem – on my machine it’s working. The CI has the following configuration:

TeamCity.NET 4.51EF 6.0.2VS2013
It seems that there …

Fundamental Books of a Software Engineer (version 2018)

More then six years ago I wrote a blog post about fundamental books that any software engineer (developer) should read. Now it is an excellent time to update this list with new entries.

There are 5 different categories of books, that represent the recommended path. For example, you start with Coding books, after that, you read books about Programming, Design and so on.
There are some books about C++ that I recommend not because you shall know C++, only because the concepts that you can learn from it.


Writing solid codeCode completeProgramming Pearls, more programming pearls(recommended)[NEW] Introduction to Algorithms


Refactoring (M. Fowler)Pragmatic ProgrammerClean code[NEW] Software Engineering: A Practitioner's Approach[NEW] The Mythical Man-Month[NEW] The Art of Computer Programming


Applying UML and Patterns (GRASP patterns)C++ coding standards (Sutter, Alexandrescu)The C++ programming language (Stroustrup, Part IV)Object-oriented programming (Peter Coad)P…

Entity Framework (EF) TransactionScope vs Database.BeginTransaction

In today blog post we will talk a little about a new feature that is available on EF6+ related to Transactions.
Until now, when we had to use transaction we used ‘TransactionScope’. It works great and I would say that is something that is now in our blood.
using (var scope = new TransactionScope(TransactionScopeOption.Required)) { using (SqlConnection conn = new SqlConnection("...")) { conn.Open(); SqlCommand sqlCommand = new SqlCommand(); sqlCommand.Connection = conn; sqlCommand.CommandText = ... sqlCommand.ExecuteNonQuery(); ... } scope.Complete(); } Starting with EF6.0 we have a new way to work with transactions. The new approach is based on Database.BeginTransaction(), Database.Rollback(), Database.Commit(). Yes, no more TransactionScope.
In the followi…