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Hi,
I m having problem in hiding node in treeview..
help pls..
Thanks
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I think you cant actually make a node not visible (as in dissapear it). What you can do, is remove it from the tree. If you need to reference this node later, you can store it in an ArrayList for later use.
Best Regards,
azazel
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removing a node will not help me..
Actually i m loading XML in a treeview and i want to change the value of elements from textboxes....
so, i will be needing childnodes while clicking parentnode but i don't want to display them(childnodes) in treeview
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Do'nt draw the childelements to the treeview, you can store them as XmlElements in the tag property of the parent node and retrieve it when you need
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Hai all,
I have created a Dll which i want to place it in GAC so that I can use it in another projects.
I am new to dotnet.
Please show me the way the assemblies are placed in GAC.
SukanyaVarma
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Hello
You need to use gacutil.exe for it.
gacutil.exe /i <assembly_path>
With best regards,
Andrew Kirillov, MCP x 3
Prize winner, August 2005
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The assembly must also be strong named (signed) and you must be an administrator to add strong named assemblies to the GAC because it is a trusted store (and is not subjected to stack walks when checking code-access security).
For information about strong name assemblies, read http://msdn.microsoft.com/library/en-us/cpguide/html/cpconStrong-NamedAssemblies.asp[^] and be sure to follow the "See also" links at the bottom of the page as well.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Customer Product-lifecycle Experience
Microsoft
[My Articles] [My Blog]
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Thank you Andrew Kirillov,
Thank You Heath Stewart
Thanks for your responses.
With Regards
SukanyaVarma
sukanyavarma
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I am having exception on the line where i am instantiating a TextBox in InitializeComponent() method. The exception is ArithmaticException. This problem is only with TextBox. The application is a WindowsApplication. The additonal information that it gives is of Underflow/overflow. Any help...
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A code sample would help. 
Is this code generated by VS.NET? Or is it programmer generated code?
Also, you may want to catch the exception and post the output.
Hope we can be of help,
azazel
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Are there any easily accessible Collision Detection (for 2D and 3d) resources that I could be provided?? I made a 2D game, but the collision detection isn't 100% and I wanted to transfer the game to 3D.
I love to program!
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I think gamedev.net is probably the place to look. Pixel perfect 2D collision detection is easy enough, but I have no idea about 3D, beyond a vague idea of the maths involved.
Christian Graus - Microsoft MVP - C++
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Thanks for the response. Should I google Pixel perfect 2D collision detection? And would I be able to use that with C#?
I love to program!
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Sure you can use that in C#
modified 12-Sep-18 21:01pm.
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Depends what you mean by use it. You can implement the alogrithm in c#, actaully you could write the algorithm in COBOL if you wanted.
You might not be able to find a prewritten c# implementation though. 3d gfx is an area where every last percent of performance is more likely to matter so most of the work in it is still done with c++.
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Eh, you can uaually eek significant performance out of C#. Its just a different process that requires understanding how managed code works, same as you would have to know how to efficiently allocate and free memory manually with C++. 
As for collision detection in 3D, its quite a bit more complicated than it is in 2D. There are numerous ways you can do it, and depending on your target gaming platform's base performance, and how precise you want the collision detection to be, it can be fairly strait forward or very complex.
Since you have never done 3D collision detection before, I would search for bounding box collision detection algorithms. These are pretty simple, and use basic face intersection algorithms to check if an objects bounding box is intersecting with any other object or wall. More advanced techniques can do per-vertex comparisons to check each point on the surface of an object for collisions. You can do this either on the CPU (slow), or with vertex shaders on the GPU (fast), but its advanced either way. I'd start with the bounding box.
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If you search this site for collision detection, you should find a game I wrote in three parts, and one article is all about collision detection. I think the game I wrote was probably slower than it needed to be, but it sure works.
Christian Graus - Microsoft MVP - C++
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What's wrong with the file they offer you ? I can't check, I don't have an account.
Christian Graus - Microsoft MVP - C++
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You can login with -
username - user
password - user
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I've emailed you a project that compiles and runs, but some observations
1. There is no meaningful article with this code
2. As a result, I don't see how you're likely to learn much from it
Christian Graus - Microsoft MVP - C++
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Christian,
Thanks for doing that, but I have an older version and it wont run 
Can you PLEASE give me step-by-step instructions on how to do it?
I know there is no article thats why I wanted to get the code running to learn directly from the code.
Thanks mate,
-Dan
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I created a new console application, but in hindsight a windows forms app may have been better. Then I deleted all the code in the wizard generated app, and use add existing to add the two classes, which I had copied to the folder. With the console app, I needed to add references to system.drawing and system.windows.forms, then it worked.
Christian Graus - Microsoft MVP - C++
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Christian,
I've done that, and the program runs without errors, but the interface doesn't appear, the form is blank ???
Thanks again,
-Dan
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