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I'm reworking a WinForms application I wrote a couple of years ago.
It has a TabControl with a few TabPages. Originally I put the various Controls on the TabPages, but in reviewing it I decided writing a UserControl for each TabPage would be better (more modular, less monolithic).
But then I realized that if I derived each TabPage directly from TabPage (rather than deriving from UserControl and Adding the UserControls to the TabPages) I could save a layer of abstraction (I want one additional layer of abstraction, not two).
This works fine... except TabPage doesn't have the fancy schmancy Designer like those of Form and UserControl!
I looked a little at creating a Designer, but I don't want to go to that much trouble.
I am wondering whether or not it's possible to use the System.ComponentModel.DesignerAttribute to associate an existing Designer with my derived TabPage, perhaps one that Form or UserControl uses, but I haven't been able to track them down.
I see that others have asked similar questions on various forums, so I expect there's no easy way to do it.
Any other thoughts?
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PIEBALDconsult wrote: I am wondering whether or not it's possible to use the System.ComponentModel.DesignerAttribute to associate an existing Designer with my derived TabPage, perhaps one that Form or UserControl uses, but I haven't been able to track them down.
It should be possible to do this. I've never tried it with a TabPage derived control, but I have done it with other controls and it works very well.
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Could you point me in the right direction?
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Sure. This would be the bare minimum implementation:
[Designer("System.Windows.Forms.Design.TabPageDesigner, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public class CustomTabPage : TabPage
{
} The only issue is that you can't add these tab pages to the TabControl at design time since the TabControl class doesn't know anything about them. You can add the tab pages normally and then go into the designer code and change them by hand. (Even though the designer code is autogenerated, this change won't be lost the next time it is generated.)
If you want to be able to add them at design time, you would need to do some more work and create a custom TabControl derived class that knows how to add these controls instead of the normal TabControl .
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Nah, that didn't work, but thanks.
Could you show an example of where you've had something like this work?
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PIEBALDconsult wrote: Nah, that didn't work, but thanks.
What didn't work about that? I pulled that from a simple test app I created and it seemed to work there.
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Didn't provide the Designer like that of a Form or UserControl. But I'm going to look at what you sent further, now that I've gotten some sleep.
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Well, for one thing I needed to add a reference to System.Design
I think I actually need to use System.Windows.Forms.Design.ParentControlDesigner , and I've tried, but still no joy.
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Or maybe it's System.Windows.Forms.Design.UserControlDocumentDesigner , still trying...
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Hmmm...what is the behavior you are expecting and/or not seeing? When I added the System.Windows.Forms.Design.TabPageDesigner it gave me the same design time experience as the normal TabPage does.
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Hi all, we are currently developing with the .net 2.0 version because we were asked to ensure compatibility with mono. Since Mono is implementing some of the features of the 3.0 version we thought to give to 3.0 a look, but we aren't sure what to install. Do we need a new version of the sdk? We Have found the redistributable package download, but it seems that the sdk is a separate file of more than 1 GB. Does it really require all that memory, given that we already have the 2.0 installed, or is there somewhere an update file?
Thank you!
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It's not memory, just HDD space.
Christian Graus - Microsoft MVP - C++
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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Err... thank you, perhaps my english is worse than I thought, I do know of course that it refers to the size of the file, not the memory required.
What I meant, is that we don't really need 3.0, we just want to give it a look, and we would be very unpleased to saturate the (currently limited) band of our temporary internet connection for 5+ hours just to discover that it is the wrong file.
So my question is:
Assuming that we have already the 2.0 sdk and runtime installed and running, which files do we need in order to be able to compile and execute a 3.0 program? And to be even more precise, we are working with c#.
Thank you again
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We really need a "Mr Nice Guy" status just for you. You really do have the nicest approach on the site. Oh how I wish I was like you instead of the cynical, sarcastic me. Nah - cynical and sarcastic is so much fun.
Deja View - the feeling that you've seen this post before.
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Pete O`Hanlon wrote: We really need a "Mr Nice Guy" status just for you.
LOL.
Pete O`Hanlon wrote: You really do have the nicest approach on the site.
Thanks. I think. I guess I take that approach because I've seen so many people take the other path and not get anywhere in trying to get through to some of these people. I figured I would try a different tack and see if it works. I guess it has...at least so far.
Pete O`Hanlon wrote: Oh how I wish I was like you instead of the cynical, sarcastic me. Nah - cynical and sarcastic is so much fun.
Oh believe me...I can be super cynical and sarcastic if I need to be. I don't know if you remember the The code monkeys are invading![^] posts from a few months ago, but it was spurred because of one of my blog posts...which was a rant about the level of stupid questions appearing here on CP. I've posted a few such rants on my blog over the past year or so.
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Scott Dorman wrote: I don't know if you remember the The code monkeys are invading![^] posts
I remember it well - I also remember people getting hot under the collar about what was basically a very valid point.
Deja View - the feeling that you've seen this post before.
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Pete O`Hanlon wrote: I remember it well - I also remember people getting hot under the collar about what was basically a very valid point.
Yes, it did get people a bit hot under the collar...oh well...it was just a rant on a valid trend I was seeing (and still am).
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cignox1 wrote: we are currently developing with the .net 2.0 version because we were asked to ensure compatibility with mono.
That's just a bit of a ridiculous requirement since Mono hasn't implemented all of the .NET 2.0 classes yet.
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Hi,
Currently I'm developing a project with ASP.NET (C# code behind), and I m expecting a bug when I try to upload a file with more than 4Mb.After making some research I find out that 4Mb is the standard file size that can be uploaded.
We can change this limit in the web.config but it s not really what I'm expected.
I'm doing a check on the server side, but this means that the file is already in the cache.
The fact is, even if I check the size limit on the server side , the error is through before.
So how can I display my own error message ?
In advance thanks
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The actual limit is 3mb which is why you are getting the error. There are two web.config settings you need to worry about:
<httpRuntime executionTimeout="300" maxRequestLength="15360"/>
The maxRequestLength in this example has been set to 15mb. The other setting you need to be worried about is the executionTimeout which is this example is set to 300 seconds which is 5 minutes. If these two setting are set correctly you should have no issues upload files to your system.
Hope that helps.
Ben
-- modified at 15:06 Tuesday 2nd October, 2007
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You may want to repost your example. You forgot to check the "Ignore HTML tags in this message" box before you hit the "Post Message" button. Your example isn't visible.
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Thanks Dave,
Usually I am the once asking the people posting a question to do that. It is sort of funny because when I posted my reply I thought to myself, make sure you check that box. Of course, then I forgot to. Anyway, thanks for letting me know.
Ben
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