|
So what is "lstwep" when it's at home? It isn't a standard class - so I have no idea where you would find it!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
lstwep is what i named the listbox lst is short for listbox
|
|
|
|
|
So why did you change what I wrote and replace the class name with a variable name?
That is just like writing this:
string greetings = "Hello!";
private void MyMethod(greetings g)
{ Instead of:
string greetings = "Hello!";
private void MyMethod(string g)
{
...
}
...
MyMethod(greetings);
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
bit i still get a issue when i add this in thats why i tried my best to remove this error
and i thout changing the name form listbox to elfwep witch is the name of my listbox but it still gives me the below error showed in the picture.
http://i.imgur.com/c6JH6TH.png[^]
|
|
|
|
|
That's because you don't have the using statement in your class...
using System.Windows.Forms;
You are supposed to know this stuff!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
lol yeah slipped my mind feel so stupid now ;( but how would i use that in the code i already have as in when i push a button it will load all the stuff into a listbox with the code you provided to me ? sorry im such a noob.
|
|
|
|
|
Interestingly, I couldn't find anything on this when I googled it. I have a ContextMenu with MenuItems and I want each MenuItem to have their own ContextMenu so I can both left and right click them. Trouble is, when I have code like this:
<MenuItem ContextMenu="{StaticResource MyContextMenu"/>
Right clicking on the MenuItem closes the MenuItem's parent ContextMenu instead of showing the MenuItem's ContextMenu. I've also experimented with adding StaysOpenOnClick="True" , but to no effect.
How can I do this?
|
|
|
|
|
What is wrong to simply add sub items for the "main" menu items?
modified 19-Jan-21 21:04pm.
|
|
|
|
|
I already do do that. The point is for the MenuItem to have children AND it's own ContextMenu. Google Chrome's bookmarks bar is a perfect example and clearly the logic is different than what you're suggesting.
I want this:
<MenuItem ContextMenu="{StaticResource MyContextMenu}">
<MenuItem/>
<MenuItem/>
<MenuItem/>
</MenuItem>
Obviously, I'm aware of submenus, but it's not quite the same.
|
|
|
|
|
I see and need to have a look to Chrome's bookmarks.
I made also some tests with WPF and was not able to make a ContextMenu for a "parent" ContextMenu item. I found that also RightClick the parent menu item ends in OnClick, which seems again to be an exceptional behaviour only for menu items.
modified 19-Jan-21 21:04pm.
|
|
|
|
|
Starting to suspect Chrome might only be using one menu for each bookmark and the bar itself. It looks like they enable/disable certain items depending on what's clicked. So if it's just one of those things you can't do, I'm cool with that. Just have to rethink what I want to do.
|
|
|
|
|
Strictly speaking, a ContextMenu is just an adorner - it should be possible for you to roll your own adorner abstraction to do what you want.
This space for rent
|
|
|
|
|
I'm with 0x01AA on this, use a sub menu, left click on a menu item is not intuitive and is probably not supported.
Never underestimate the power of human stupidity
RAH
|
|
|
|
|
I have a class that has no parameters then i will create an object of it and convert it to stream and store it into a dictionary, every thing is fine until i add parameter to the class.
basically i do this.
var classObject = new ClassObject();
dictionary.Add(id, new MemoryStream());
then i will just retrieve it like this.
var retriveObject = dictionary[id] as ClassObject;
Now I add a single parameter on that class now using the last code above will produce Quote: no parameterless constructor defined for this object
my question, is there way to fix the exception without removing the parameter i added to the class?
Thanks
|
|
|
|
|
Gilbert Consellado wrote: is there way to fix the exception without removing the parameter i added to the class
Which implies that your code sample doesn't reflect the current code:
var classObject = new ClassObject(); Has been changed to something like
var classObject = new ClassObject(myParameterValue); And the class constructor changed to something like
public classObject(SomeClass parameterName)
{
... As a result, the class no longer contains a parameterless constructor as the error message indicates.
Create a new constructor:
public classObject()
{
... And it should get rid of the error.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
Sorry, I think i didn't deliver my post right.
The first example, that is the old code, and I already remove that.
Actually the current code is something like this:
var classObject = new ClassObject(parameterValue);
dictionary.Add(id, new MemoryStream());
Then I retrieve it like this.
var retriveObject = dictionary[id] as ClassObject;
Thanks
|
|
|
|
|
If I try to duplicate what you have:
Dictionary<int, MemoryStream> dictionary = new Dictionary<int, MemoryStream>();
var classObject = new ClassObject("hello");
int id = 666;
dictionary.Add(id, new MemoryStream());
var retriveObject = dictionary[id] as ClassObject;
}
public class ClassObject : MemoryStream
{
public ClassObject(string s) { }
} I don't get an error - I do get a null value, but that's what I expect.
So how is my code different from yours?
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
hmmm, honestly I didn't know how to reply to this. It bothers me for a while.
I apology, but are you serious with that code snippet or you just give me a sarcastic reply?
P.S.
I didn't post the the whole code on may sample to make the post short.
|
|
|
|
|
No - I'm serious - I've just combined your code snippets into something that will compile and run to try and run down why you get the error in code that shouldn't give it. Obviously, I can't see code you haven't given us so I have to assume a minimum that gets it to compile - but I don;t expect it to match yours. It's there so you can explain where yours differs and to let me create a "closer" version for testing here.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
Got it.
But i just decide to remove the parameter and just expose the property setter of one of its member, because it also introduce other code problem.
btw, thanks
|
|
|
|
|
You're welcome!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
|
|
|
|
|
I'm positive you just need to add a parameterless constructor, EVEN if you don't intend to use it. You could always mark it internal too. I have to assume you're using an xml serializer because in my experience, this has always happened when an object lacked a parameterless constructor. I also have to assume that when you added a constructor with parameters, you removed the parameterless one. Can't do that...as a sidenote, it would be helpful to have explained how exactly you serialize the object for others to better understand your issue.
So basically, it should look like this:
[Serializable]
public class ClassObject : MemoryStream
{
internal ClassObject() { }
public ClassObject(string s) { }
}
|
|
|
|
|
Thanks, yeah it seems to work this way. But marking it internal will give the same error. Actually I use XtraReport a third party component it has SaveLayout and FromStream member.
But i just decide to remove the constructor parameter and just pass the value through a property.
P.S.
Whooo my ISP giving me crap right now.
|
|
|
|
|
In C#, I have a form contain controls. I want to save form to XML file, then load it from XML file.
Please tell me how to do.
Thank all!
|
|
|
|
|