Questions tagged as '.net'

Tagged questions
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What is the correct way to call C # versions?

There seems to be some confusion with the naming of the C # versions and the technologies that are related to it. Is there a C # 2005? Or a C # 3.5? What is the relationship of C # versions with .Net, Visual Studio, etc.? There are books...
asked by 17.06.2014 / 18:08
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Alert upon entering condition in the Asp Net MVC Controller

Good evening, I tried to look in other posts and I did not find the answer. I have a Controller in my Asp Net MVC project that has this condition: if (resultado == null) { ModelState.AddModelError("", "Usuário ou senha i...
asked by 10.05.2018 / 05:11
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ZXing Colorful .net

I need to create a colored qrcode using zxing.net but I can not and I do not even think 1 tutorial on the internet even searching and trying the days, does anyone have any idea how I can develop 1 color qrcode using zxing and c # net . If it hel...
asked by 10.05.2018 / 19:27
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Error Signing XML NF 4.0

When you try to sign the XML for NF-e 4.0 authorization. at the time of signedXml.ComputeSignature(); it always returns me error. I did a test with Visual Studio 2013 it usually signs, but when I run the project it gives the error:   ...
asked by 14.05.2018 / 15:00
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C # - Tool that allows signing in a PDF document

I need a tool that allows a person to sign a PDF document in a certain place in the document, does anyone have any tips? But you have to allow doing this internally in my application, tools like Adobe Sign, which use Cloud for this can not be (i...
asked by 04.05.2018 / 12:29
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Slow loading of ionic images 3

Good afternoon, I've developed a product sales app and it's working perfectly. My only problem is loading images. I downloaded some apps from stores, and the images appear almost instantly, and in my app it takes 5-9 seconds to load. I'...
asked by 05.05.2018 / 21:58
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TLS version in NFe 4.0 urls

I'm implementing the NFe 4.0 webservices and would like to ask a question about what defines the security protocol that is used in communication. The behavior of the connection is different for some machines and is causing problems. Both machine...
asked by 12.04.2018 / 15:03
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Upload Bitmap in PictureBox

I am building a code to scan biometrics. How do I put the image generated on the device in the pictureBox What I use to mount the bitmap image public Bitmap ExportarBitMap() // Exporta para o BitMap { if (!Connected) // Valida s...
asked by 12.04.2018 / 14:59
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Convert string to DateTime C # [duplicate]

How do I get a string something like "01/30/2015", for example, and convert it to datetime and keep that same date format? Being able to validate the date.     
asked by 13.10.2015 / 21:14
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C # XML digital signature, ill-formed reference element

I have a c # code that generates an xml with the digital signature, but when calling the function signedXml.ComputeSignature() it shows the following error:    Malformed Reference Element. However, I searched for this error and...
asked by 09.04.2018 / 20:34