|
Can anyone give me (rookie C# programmer) an idea how to use standard controls that can be dragged to a new location by the user during program execution. I would like to use various controls (TextBox, Button) to graphically represent a continuous beam (structural engineering) containing the member information (length, moment of intertia, cross sectional area, joint details, loads, etc).
Thanks in advance
Ron Modesitt
|
|
|
|
|
This is probably not a rookie task 
Just as a starting point I would begin by monitoring the Mouse Button Click events as follows:
In the Mouse Button Down event I would record the coordinates of the mouse pointer and the control being clicked. Then in the button Up event I would check the coordinates of the mouse again. If the delta between the starting and new locations are greater than, say, the size of the control oringall clicked (or some other specific value) then set the Location property of the control to the new coordinates. This approach will not create the dragging effect visually but it should move the controls for you.
Good Luck.
|
|
|
|
|
Many thanks. I agree this is not a rookie task, however, your suggestion is a good idea and one that this rookie understands.
Ron Modesitt
|
|
|
|
|
i want to create left panel like that we used in c# 2005 that i can fix it or hide and visible during mouse move
plz i need this answer today immeditaly
thanks alot
md_refay
|
|
|
|
|
DockPanelSuite on SourceForge is what you are looking for 
xacc.ideIronScheme a R5RS-compliant Scheme on the DLR
The rule of three: "The first time you notice something that might repeat, don't generalize it. The second time the situation occurs, develop in a similar fashion -- possibly even copy/paste -- but don't generalize yet. On the third time, look to generalize the approach."
|
|
|
|
|
md_refay wrote: plz i need this answer today immeditaly
Along with what lecky said, perhaps you also need rent-a-coder. If you "plz i need this now today 'immeditaly'," you are best off paying someone to do your work. No one here will do it for you, even more so now that you have been very rude. Demanding stuff doesn't usually make things go quicker.
"If an Indian asked a programming question in the forest, would it still be urgent?" - John Simmons / outlaw programmer
I get all the news I need from the weather report - Paul Simon (from "The Only Living Boy in New York")
|
|
|
|
|
It is well known most software has undo and redo functions,
but I don't know how to realize them. Should I save all the operations during each operation and then undo and redo it? that should be really complicated to do.
Is there any good way to go for that?
thanks.
|
|
|
|
|
There are a few articles here on CodeProject that simplifies this for you.
xacc.ideIronScheme a R5RS-compliant Scheme on the DLR
The rule of three: "The first time you notice something that might repeat, don't generalize it. The second time the situation occurs, develop in a similar fashion -- possibly even copy/paste -- but don't generalize yet. On the third time, look to generalize the approach."
|
|
|
|
|
it depends alot on what environment you are working in.
If you're saving changes to a DB for instance you're going to need to roll back the changes in reverse order taking account of what other users might have done to effect the state of the DB in the meantime.
If you are drawing a poly line and you store the points in an ordered list then removing them one at a time from the end will achieve an undo.
If your application communicates using messages and you can find an inverse for all of those messages then you could store the messages in a list and a pointer to the current position. Redo moves the pointer up one, adding something new deletes everything after in the list etc ect.
Your object could store a collection of serialised versions of itself and each time you change the object you serialise it into its own internal store (hint: mark the collection so that it doesn't get serialised) This might be nice as you could add this functionality to an UndoRedoBase but could potentially use alot of memory.
my 2p
Russ
|
|
|
|
|
Hi guys,
I'm trying to access an SMB share hosted on an AS400 server. The server is nothing to do with the domain security. My windows server needs to periodically access this folder and read/write to some files.
The access security is managed by the server. The path is: "\\qfgmas400\STX\mvx_desp". If i try something like:
DirectoryInfo fi = new DirectoryInfo(@"\\qfgmas400\STX\mvx_desp");
FileInfo[] fia = fi.GetFiles();
I get an UnauthorizedAccessException.
Any ideas how i can pass a username and a password to connect to the share?
Cheers
Will
|
|
|
|
|
I retrevied the Images from Database And Display In datalist.
I used Two Buttons(prev and Next).
Here I place one image control at the top.
At Bottom In datalist All the Images is displaying.
At first in that image control first image will be displaying.
if we click next button then next image will be displayed.
if we click previous button then previous image will be displayed.
Here this buttons is not working.please Send the code In Detail Immediatly.
Its Urgent.
thanks and regards
cwah
|
|
|
|
|
Just use the BindingNavigator control. I did it for the first time today, and it took all of 5 minutes.
xacc.ideIronScheme a R5RS-compliant Scheme on the DLR
The rule of three: "The first time you notice something that might repeat, don't generalize it. The second time the situation occurs, develop in a similar fashion -- possibly even copy/paste -- but don't generalize yet. On the third time, look to generalize the approach."
|
|
|
|
|
I retrevied the Images from Database And Display In datalist.
I used Two Buttons(prev and Next).
Here I place one image control at the top.
At Bottom In datalist All the Images is displaying.
At first in that image control first image will be displaying.
if we click next button then next image will be displayed.
if we click previous button then previous image will be displayed.
Here this buttons is not working.please Send the code In Detail Immediatly.
Its Urgent.
thanks and regards
cwah
|
|
|
|
|
How do i create a desktop application in c#.net on automobile industry?
|
|
|
|
|
Have you tried Microsoft Robotics?
|
|
|
|
|
no wat is Microsoft Robotics?
Plz do tell me
|
|
|
|
|
|
Same answer as to other people who want to know how to build something against a particular area,
1. Get the user requirements.
2. Design the system.
3. Code and test it.
4. Get others to test it.
5. Release it.
I think that pretty comprehensively covers it.
Deja View - the feeling that you've seen this post before.
|
|
|
|
|
So far I needed to put a MemoryStream's content to a byte array two times, but in each case MemoryStream.Read() gave back corrupt data.
In the first case I saved an image into a stream then used Read() to put it into a byte[]. When I used Write() to get back a stream from the byte[], the stream was corrupt and I couldn't create an Image from the stream.
The second time I used Read() I tried to put a serialized object into a byte[] and return it to the client with remoting as a return parameter. This time when I used Write() to get back a stream I, BinaryFormatter.Deserialize() threw an error about how the binary stream's header was corrupt (or something like that).
In both cases using MemoryStream.ToArray() instead of MemoryStream.Write() worked as expected, creating a correct byte[].
Both methods use InternalBlockCopy but I'm not familiar with that external function.
I'm just curious if you met the same problem and if you know what causes it.
|
|
|
|
|
After writing, you have to reset the file position before reading the data.
Experience is the sum of all the mistakes you have done.
|
|
|
|
|
Guffa wrote: After writing, you have to reset the file position before reading the data.
Before deserializing if I don't reset the position I get another error: "End of Stream encountered before parsing was completed.". If I reset the position, then the error is: "Binary stream '0' does not contain a valid BinaryHeader. Possible causes are invalid stream or object version change between serialization and deserialization."
|
|
|
|
|
You probably made the same mistake earlier
xacc.ideIronScheme a R5RS-compliant Scheme on the DLR
The rule of three: "The first time you notice something that might repeat, don't generalize it. The second time the situation occurs, develop in a similar fashion -- possibly even copy/paste -- but don't generalize yet. On the third time, look to generalize the approach."
|
|
|
|
|
I just wanted to show that an error caused by not resetting the position is different from the error caused by using MemoryStream.Read() to fill the byte array. I knew I had to reset the position even before I made my first post. The situation was the same when I used Image.Save().
|
|
|
|
|
Ok, that's the only problem that I can think of. If you want anything more specific than a guess, you have to show the specific code that you are using.
Experience is the sum of all the mistakes you have done.
|
|
|
|
|
Hi,
How can i create custom control like fontdialog, colordialog. I mean I dont want to inherite from them, i just want to drag them in form and it will come at the bottom area and i can use them , e.g : ColorDialog Control, when we drag into form its come to bottom area of form and we can use the property. I want to create such type control . 
Please Give me some idea !!!
Thanks in Advance ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
