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szolDat wrote: So the only way to restrict access is to force all threads to execute the same block of code for accessing the elements of the array, for example using the same accessor method or property?
Yes.
Well, the crucial thing is the object that is used in the lock statement. There can be different blocks of code that access the array as long as they use the same object for locking.
szolDat wrote: There isn't any way to lock objects in a memory, like you lock files with different reading / writing permissions?
No.
Well, there is of course memory protection support in the processor, but that's on a completely different level.
---
"Anything that is in the world when you're born is normal and ordinary and is just a natural part of the way the world works. Anything that's invented between when you're fifteen and thirty-five is new and exciting and revolutionary and you can probably get a career in it. Anything invented after you're thirty-five is against the natural order of things."
-- Douglas Adams
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Thank you for your kind help!
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HI,
i've got a simple APP with 2 Buttons :
Button 1 = Display 20 Leds & Move 20 TextBoxs To left
Button 2 = Hide .......
I've Got a Delay of 1-2 Sec when i press Button 1 Till i see Changes
My Computer is fine (enough Free Memory & etc.)
is there any method that can help me (Beside of "This.Refresh()")
THNKS In Advance
Have Fun
Never forget it
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Hi,
this.Refresh will try to refresh all form... If you call it only on led containing panel will be less work...
Second, you're moving too many controls... Why don't you create a custom control using GDI? Securely if will be more faster!!
Visit my blog at http://dotnetforeveryone.blogspot.com
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Got u
i'll Try It
THNKS
Have Fun
Never forget it
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Hi All,
How can I record and play sound file in mp3 format ?
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Hi all
I wount to ude the notify control
iam do this steps
1 add the control to the main form in project
2 determine the properites to it
but the control is not show in window in executing time
what is the problem or what is the step/s idont know and i dont do it in my project
thanks for any body hellp me
Thaer
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Hi!
Did you set the Visible property to true?
Regards,
mav
--
Black holes are the places where God divided by 0...
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thanks me for your hellp
but i set this properites to true but the control is not show in runing time
Thaer
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Only making sure we're talking about the same thing:
You're speaking about "Notify Control", but there's no such thing. Do you mean the NotifyIcon control?
Did you try setting the Visible property after your form has been loaded (for example in the Load event handler?
Regards,
mav
--
Black holes are the places where God divided by 0...
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Hi,
if you are refering to a NotifyIcon, then you should:
- add a NotifyIcon to your main form
- set its Visible property to true
- set its Icon property to some icon
- luanch your app
- look for the result in the Notify area of the task bar.
BTW: you may want to read my TrayIconBuster article.
Luc Pattyn [Forum Guidelines] [My Articles]
this months tips:
- use PRE tags to preserve formatting when showing multi-line code snippets
- before you ask a question here, search CodeProject, then Google
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Maybe someone can point me to the right website, or even the right search phrase.
Basically, I want to make a program that takes all the paramaters and creates a program based on that.
I want a program that searches for a certain file in a certain folder, but I want these options to be variable, though I want them hard coded into the exe that is deployed.
I hope that makes sense.
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This sounds a little like a compiler-compiler ...have you searched info on lexers and parsers? There are these programs out there called 'LEX' and 'YACC' and freeer ones called 'FLEX' and 'BISON' that create a hard coded compiler programs based on input...might be a place to start.
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Hi there!
I have a question. Please Help me.
I have an Access database, the table have a field (data type Ole object). I want to input direct data (data type Ole object) into access table with C# Datagrid.
Thanks !
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And what is exactly is your question?
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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I'm so sorry. My english very bad.
I want to embed access's table into datagrid. After input data on datagrid, click button save, data will be insert in access database.
Thanks!
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Here is what I posted in your other post:
Just use a datagrid. After data is input, then you need to code the saving code on the save button. Not much else we can help you with since you did not give any real information about database schema, etc.
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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hi
i have a datagridView to show records and some textBoxes to bind to DataGridView Selected Row Data, for this work i make a method to load data and another method to bind my textBoxes, here is my method :
private void BindData()<br />
{<br />
this.txt_customerID.DataBindings.Add("Text", this.dt, "customerID");<br />
this.txt_companyName.DataBindings.Add("Text", this.dt, "companyName");<br />
this.txt_city.DataBindings.Add("Text", this.dt, "city");<br />
this.txt_country.DataBindings.Add("Text", this.dt, "country"); <br />
}
and in this event, i call above method :
private void dataGridView1_SelectionChanged(object sender, EventArgs e)<br />
{<br />
this.BindData();<br />
}
but in runTime, when i click button to load data and bind Controls, the follwing exception thrown :
This causes two bindings in the collection to bind to the same property.
Parameter name: binding
how to solve mu problem and how to bind my textBoxs Correctly ?
thankas
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Check this[^] out.
Take care,
Tom
-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com
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Hey all,
I need to load a photo, Display it in a picturebox then "draw" a rectangle area that i want to crop an example would be if i wanted to make a head shot out of a regular photo
i know how to find and load the photo in to the picture box but I'm not sure how to define the crop i want
any ideas
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add in some mouse events for the picture box.
When the user clicks with the mouse, register its location (so, a start point)
When the user releases, register the loaction and you have an end point.
Now, create a new bitmap the same width and hieght as your selected area.
Create a new graphics object from your new bitmap (Graphics.FromImage)
Then draw the selected area of the picture box's image, to your new bitmap
Rectangle srcRect = new Rectangle(start.x, start.y, end.x-start.x, end.y-start.y)
myGraphics.DrawImage(myPictureBox.Image, 0,0, srcRect, GraphicsUnit.Pixel)
Then, set your pictures image to the bitmap you created earlier. Don't forget to dispose of your graphics objects and whatnot.
You also may need to add some checking between the start and end points, so you don't have any negative values around.
As for drawing the rectangle you want to crop as your dragging the mouse, register for the OnPaint event, and draw a rectangle between the start point, and the current location of the mouse.
I hope i havn't been to confusing there, i just kinda typed as i thought.
My current favourite word is: Waffle
Cheese is still good though.
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Hello,
I'm trying to make a program where I modify properties of a lot of buttons. The names are sequential, like button1, button2, etc. all the way to button81. Buttons 82 through 90, though, I don't want to mess with--they have a different purpose.
I can't remember how to do this and I definitely don't want to modify each one individually. Any pointers?
Thanks for your time,
Michael Fritzius
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<br />
for(int i=1; i<91;i++)<br />
{<br />
this.Controls["button"+i].Text="this is button number "+i.ToString();<br />
}<br />
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