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Tuesday, September 08, 2009

WPF ListView - Formatting Rows

by XTab via XTab (Ged Mead) on 9/8/2009 5:31:00 PM

By the end of the previous blog item on the topic of the WPF ListView, the ListView looked like this: In this blog I want to look at ways of changing the look of the rows. You may, for example, want to assign a background color to the rows. And based on what we have done so far, you might be tempted to edit the DataTemplates used for the cells. Maybe you would think about adding a Border with a Background fill and placing this around the TextBlock for each cell:&nbs ... [ read more ] 1 comment(s)

Fast lookups using Dictionary objects

by LarryBlake via VB & .NET Blogs @ vbCity.com on 9/8/2009 11:15:00 AM

I just have to rave about the performance of the Dictionary object. I was trying to solve Euler Problem 87 , and my program was taking days to run. Basically, I created three arrays (prime squares, prime cubes, prime fourth powers), then iterated through all three to see if any combination matched each of the 50,000,000 numbers. At first it wasn't so bad. At low numbers, I could quickly determine that only a small number of fourth powers could be part of a total ... [ read more ]

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