I have this Windows app.
When the user clicks on a button (any button), after the event handler is done, the form is supposed to have focus returned (like if there's a MessageBox involved).
However, I've noticed that the user is forced to click once on the form to regain focus.
To illustrate (and this sounds weirder)...
The user hits a button, a MessageBox appears saying "are you sure?", and the user hits "no".
The messagebox disappears. But the button still has focus (understandable). If the user clicks on a different button, that same button still has focus and Windows thinks the user just clicked it instead of the other button that they clicked. The user has to click once on the form (even though the form visually seems to have focus, with the title bar dark blue and everything) before clicking on any other button.
I have a method which is run as a thread and at the end of it I have:
XtraForm2 form2 = new XtraForm2();
and the thing is that the windows just flashes - opens and imidiately closes
how can I solve it??
Thread wat = new Thread(GetData);
// This next line is required since you're going to be // creating UI controls on the thread.
// This next line will prevent the application from exiting if the background thread is still running.
wat.IsBackground = false;
Let me ask you a question, though: why are you creating a new thread to create the form? You're creating lots of extra work for yourself by creating a new thread to launch the form. If you keep all the UI controls created on the same thread, things will be much easier for you.
Thus, I recommend you create all your UI controls on the same thread.
the application looks like this:
I start it, and there is a button which is pressed and then the method GetData is started as a thread and after it processes all the data a second window pops up with a report, so I don't make a new thread for the second window
greetings for all, I am very instered in learn how work with sound in c#...
for instance load a music file, see the frequency of that, if any one have any idea or better have a project as example, please tell my,
I believe in .NET 2.0 their is a System.Media namespace that has classes to handle wav sound files. If you are using .NET 1.1 or before (or if the classes in the System.Media namespace can't help you with your specific file format) then you might try using activeX controls. I know Windows Media Player has a control for video, but I am not sure whether they have a control for audio.
Now that I think of it, I remember somewhere on this site their is an article on audio output using Windows Media Player. Try searching.
Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
yes as you know, all word that we say, more or less, have a average in a frequency scale, but not wory, indeed I star now a project for do many things using this topic "sound", when I finish this a post that...
If you just want to play WAV sound files, you can use System.Media.SoundPlayer. If you want to do advanced things like changing the frequency of sound files, you'll need to go outside the .NET framework for that. You can use DirectSound, part of DirectX. You could probably also use DirectShow, which is part of the PlatformSDK. There are DirectShow wrappers for .NET on this site if you care to search the articles.
I have several MDI child windows for my application. These show up in the Windows list dropdown menu when I open them. When the user clicks on the X to "close" the child window, I just want to hide it so I capture this in my FormClosing event handler for each of them doing this:
if (e.CloseReason == CloseReason.UserClosing)
e.Cancel = true;
Which hides the child window just fine, however, when I want to redisplay it, clicking on the appropriate control to call Show() for that window, it displays just fine but I don't get an entry in my Windows list dropdown menu for that item.
How do they get into your drop down list to start with ? That's obviously where the problem is.
Well, I believe I just followed the steps outlined in the MS documentation to do this. I set my main form's IsMdiContainer property to true. I added a menustrip via the designer. The entries are added by setting the MdiWindowListItem property of the menuStrip to the desired menu item (In my test case, "windowToolStripMenuItem") from within the designer and then I call the following when I want form2 to show:
form2.MdiParent = this;
The problem seems to me to be when I handle the FormClosing and set e.Cancel = true. I don't know what is going on behind the scenes to manage the list of windows that show up in the menu. I can call Hide() on form2 from its parent window, form1,and when I use the control to show form2 again it shows up in the window list as I would expect.
I am writing an application which has two text boxes (call them A and B). B is a hexdump representation of the text in A. So far, so good. What I want that when text is selected in A the corresponding hex characters are highlighted in B, and vise versa.
I started with TextBoxes, but I needed to know when the selection in one box changed and TextBox doesn't tell you this. RichTextBox has the SelectionChanged event - perfect - so I switched to RichTextBoxes.
But now, whenever my selection extends beyond a space, RichTextBox starts selecting the entire word(s). I can't get it just select what I drag the cursor over. I have checked the AutoWordSelection property and it is set to false - I even checked it at runtime to see if had changed, but it is false at the moment my selection is being changed.
Does anyone have any ideas? Can this #!&^ "feature" be turned off in RichTextBoxes? Or can I go back to TextBoxes and get notification of a change to the selection?
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