C# Why is a treeview node clicked when canceled is set to true?

Posted by Martijn on Stack Overflow See other posts from Stack Overflow or by Martijn
Published on 2010-05-18T08:07:27Z Indexed on 2010/05/18 8:10 UTC
Read the original article Hit count: 177

Filed under:

c#

|

treeview

In my winform application I have a treeview. To give the idea that a node is disabled I set the node's forecolor and I when the BeforeSelect fires I set e.cancel to true.

However when a node's tag meets some criteria a node may be selected. So that's why I have a NodeMouseClick. But when a node may not be clicked I set the e.cancel to true in the BeforeSelect event.

The problem now is, the NodeMousClick event is always fired and all the code is ececuted, even when I set e.cancel to true in the BeforeSelect event. Why is that?

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about treeview

WPF, TreeView bug, can't select root item after item removed from treeview

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a very weird bug in a three level deep TreeView. It is intermittent and I can't find how to reproduce it consistently. After programmatically removing, adding then removing some third level items, when I click on the root item it isn't selected. It can still expand/collapse but can't be selected… >>> More
jquery treeview global saving position

as seen on Stack Overflow - Search for 'Stack Overflow'
i use such treeview http://docs.jquery.com/Plugins/Treeview/treeview, it saves perfect opened nodes when i click to subnodes links, but if i click on link, that is not in treeview the treeview is closes. for example- in treeview i have product categories, when click on category it loads list of products… >>> More
Setting treeview background color in VB6 has a flaw - help?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have successfully implemented this method of using the Win32 API to set the background color of a treeview in VB 6: http://support.microsoft.com/kb/178491 However, one thing goes wrong: when you expand the tree nodes more than two levels deep, the area to the left of (and sometimes under) the inner… >>> More
C# - How do I scroll selected treeview node into view

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I have a system.windows.forms.treeview docked inside a panel that I am setting a node selected programically. What method or property would I use to have the treeview scroll the selected into view. Thanks >>> More
PopulateOnDemand does not work on data bound ASP.Net TreeView

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I have a TreeView that is bound to a XmlDataSource control. I've added some TreeNodeBinding elements to define how I want the XML data to be shown. I have also added PopulateOnDemand=true to these TreeNodeBindings. However, doing so didn't change a thing and the entire XML tree is displayed… >>> More