It may not be ideal but you could consider not filtering with every key stroke, rather when the user presses the enter key or when the textbox leave event fires or have a button or some combination of all these. Something else to consider is that if you have a massive amount of data then constantly rebinding (or looping as you are doing) will begin to cause delays and hangs in the app since the filtering logic is synchronous (it must complete before it processes The DataView filtering is very fast - faster than your looping logic undoubtedly. Set the default view filter string as the text is changing.
#Vb net 2010 listview find item full
For instance, if you bind to a dataview then you could have the full set of data in a DataTable and I ask because you could possibly do the filtering on the data source and then it would naturally add or remove items from the list view by rebinding. How are you getting the list items in there to begin with? Is the ListView bound to a data source or are you creating the items manually?
![vb net 2010 listview find item vb net 2010 listview find item](https://www.dbase.com/Knowledgebase/dbulletin/bu13lv02.gif)
I hope you or someone else reading this thread might find this helpful. Note also that there’s a class and a ListOf(Class) used here that’s why it’s so fast to work once the initial file data has been parsed through. It here use that to experiment with if you’d like.īuttons’ click event, you’ll see the heart of it all – it uses LINQ to filter the data. Of my website here and if you want, you can download the entire project folder by The form looks like this when first started: This is not set up to handle protected paths so do be careful not to select one. Following that, it puts the path and the file name of all files (including subfolders) into a two-column ListView and then offers to filter that data based on any of several ways. The sub-items also have a Bounds property that you could use to see whether the mouse is under a sub-item. This method is probably better if for no other reason than it avoids using the API GetScrollPos function.
![vb net 2010 listview find item vb net 2010 listview find item](https://i.ytimg.com/vi/NRn-zWp6BDQ/maxresdefault.jpg)
#Vb net 2010 listview find item code
Simple: It asks the user to browse to a folder and select it. The code still needs to do some work to find the index of the sub-item under the mouse if you want that sub-item's index. What I set out to do was to make a program that should work on anyone’s computer, and to that end, it does something rather
![vb net 2010 listview find item vb net 2010 listview find item](https://www.codeproject.com/KB/cpp/ExpCombo/ExpCombo.jpg)
This is, of course, not the only way to do it – not by a long shot! But it’s This topic – filtering data that’s in a ListView – has come up several times over the years and I thought I’d take time to write