DownloadFileAsync was added in .NET 2.0, and uses the EAP model.
When async / await was added to .NET 4.5, many parts of the BCL were updated with new Task-returning TAP methods, which work better with the new syntax.
The guidance for TAP methods is to add Async to the end of the method name. However, since many EAP methods were already using this suffix, Microsoft decided to use the TaskAsync suffix - hence, DownloadFileTaskAsync.
first, if i writing on bad category, im sorry, i didnt found the help category..
Okey, to my problem. I have a RGB STRIP connected to Arduino, when im communicating via Serial. All works great! So next i wanted to make some audio visualisation.. So i found some samples etc.. and then i created the Audio Visualisation via C# using BASS.NET, when R has been BASSes, G medium frequency and B high frequency. But isnt looking good, so i started thinking, what 3 variables in song has can use, but this is bad idea.. I got idea to change to random color when its get "beat" or BASS hit some value. I tryied 4 hours of doing it, searching, programming... But i cant do it... Im only 15 and non english so im limited in searching etc...
So, my question is how to detecting the beat or just anything event for Audio Visualisation. Best output form WASAPI. Im out of ideas and anything.. Only what i can do is get FFT and Audio Spectrum from WASAPI by BASS.NET, but thats all. My audio skills is so low for this. Anything is welcome!
Yes, i found something with BPM, but i cant integrate that for the BASS.NET, and i didnt found any example for using it in WASAPI. Is possible to provide some example to BPMCounter for WASAPI in bass.net?
I have a form with a few textboxes and checkboxes. I want to store in database values from them. But, I also have a button that selects an image from computer and show link of the image in a textbox. Well, I want to insert data but without inserting an image and here comes my problem, I receive: Empty path name is not legal. Can anybody help me? Thanks
Code is here:
Start by assuming TextBox5 contains no text, and your error should appear - so the most likely thing is that your user pressed Cancel instead of selecting an image, or that code was never called. So check - if it's empty, don't continue.
But...there are other problems here, from the trivial:
Why do you think you have call ToString on a string? What do you expect that to do?
string picLoc = dlg.FileName.ToString();
To the very serious: Do not concatenate strings to build a SQL command. It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Use Parametrized queries instead.
You are clearly aware of the existence of parameterized queries and how to use them, but you leave your code wide open to anyone with a keyboard and your application anyway? Why? Do you not like your data?
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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