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winforms, loop through components


winforms, loop through components

By : user2951861
Date : November 18 2020, 03:49 PM
around this issue If you are creating the BindingSource the following way, only then it will be contained in the components container.
code :
BindingSource bindingSource1 = new BindingSource(components);


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What's the WPF equivalent of WinForms components?

What's the WPF equivalent of WinForms components?


By : Volker Beyer
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Just from my own observations, it seems like Microsoft is trying to move away from having components and similar things in the GUI. I think WPF tries to limit most of what's in the XAML to strictly GUI things. Data binding I guess would be the only exception. I know I try to keep most everything else in the code-behind or in separate classes or assemblies.
Probably not exactly the answer you wanted, but it's my $0.02.
why initialized components before SuspendLayout in c# winforms

why initialized components before SuspendLayout in c# winforms


By : user3543279
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Because there is no need to do it beforehand. Object initialization is irrelevant to the SuspendLayout call, so why do it before? Even autogenerated code can be laid out logically. If I were writing that code by hand I would do the same thing for the same reason I declare variables as close as possible to where they are first used (of course, that example would make the generation process a bit more complicated, so they just initialize them at the start).
Asynchronous components and WinForms

Asynchronous components and WinForms


By : user3820086
Date : March 29 2020, 07:55 AM
To fix this issue I like @Polity's answer, being an Rx fan I would say use Rx (Reactive Extensions)
code :
 //we convert a typical begin/end (IAsyncPattern) into an observable sequence
 //it returns a Func -read() that takes a byte, two ints and returns one.
 var read = Observable.FromAsyncPattern<byte[], int, int, int>
                            (networkStream.BeginRead, networkStream.EndRead)
.ObserveOn(Scheduler.Dispatcher);

// Now, you can get an IObservable instead of an IAsyncResult when calling it.
byte[] someBytes = new byte[10];
IObservable<int> observable = read(someBytes, 0, 10);

observable.Subscribe(x=> 
//x will be the returned int. You can touch UI from here.
);
device.OnString += new OnStringEvent(device_onstring);

void device_onstring(byte[] str)
{ 
 listStrings.Items.Add(...);//this is wrong, will give cross thread op error.
 //you do this: 
 this.Invoke(new MethodInvoker(delegate()
   {
       listStrings.Items.Add(..);
       //or anything else that touches UI
   });
 // this should refer to a form or control.
}
What are the lightweight/ heavyweight components in WinForms?

What are the lightweight/ heavyweight components in WinForms?


By : Potatonano
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , In AWT, light weight components are written in Java and directly drawn to the screen by Java but are not known to the OS, where as heavy weight components are provided by the OS.
In WinForms all components are provided by the OS or derived from Control which is provided by the OS. Therefore this distinction does not exist in WinForms.
Grouping multiple winforms components

Grouping multiple winforms components


By : Md Rakib
Date : March 29 2020, 07:55 AM
will help you That combination of chart, 2 panels and a TableLayoutPanel is a good candidate for creating a UserControl.
Assuming you want the four groups to be equal in size regardless of the resizing of the parent window, I'd put them all into a 2x2 TableLayoutPanel and when a group is maximized you should be able to hide the others and set the width and height of the other row and column to zero instead of 50%.
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