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My task is to validate the digital signature against the x509 embedded key in the xml document. I see examples how to do this against a public key in the mdsn examples but not sure how to do the compare within the same xml block. I know I have to decode both from base 64 encryption, but how do I make the comparison? What is the most simple way to do this?
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Is there a way to programmatically add a digital signature to a VBA Macro in a word document using C# or VB.Net?[code]...
View 1 Replieshere know how to do to sign a file with certificate chain and crl embedded?I don't have ideia how to do that.
View 5 RepliesI wanted to generate digital signature in my asp.net application based on some value like date of birth. what is the way to do that ? i am using vb.net
View 1 RepliesI'm planning on using the Smart Device Framework 2.3 to use the signature control panel in a Windows Mobile 5 application using the compact framework 3.5.
The control has the option to save the signature as either a byte array of points, or as a bitmap. Now seeing as I want to store the signature in a sql compact database, I guess the byte array is going to be better. The trouble is, I'm not sure how to render that in a full WinForms application after I've transferred it back to the desktop.
I need to show the signature on a report, so it would need to be an image I could link/embed into the report.
how can i capture a signature from an Electronic Signature Pad and store it in database. is there any particular api or it can be captured just like capturing an image from a WebCam. Is it manufacturer specific?
View 2 RepliesI was trying to use a GetAsyncKeyState code but each time I run the program an error occers where
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'A call to PInvoke function 'WindowsApplication1!WindowsApplication1.Form1::GetAsyncKeyState' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.' The full code is in timer with (1) time interval
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I'm trying to figure out a way to validate the user data entered:
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This is in MVC3, VB.net. I'm looking for an easy way to validate a users input data into the editorfor field.
How to access Digital I/O using USB using C or C++ or Vb.net Or C#.net?
View 4 RepliesI developed an application by vb.net 2005 on SQL server 2008.I would like to enter some of my data such as my drawing and my handwriting in my application by a digital pen.
View 2 Repliesi have a folder called xulrunner that needs to be initialized - i originaly had the folder under c:\ and used the following code to initialize it. Xpcom.Initialize("c:\xulrunner")This worked fine, but because i want it to get included with the install, i included the folder in the project, and when built it goes to a folder on my desktop, that haves the folder allong with the exe's etc
so i swapped the above code to Xpcom.Initialize(My.Application.Info.DirectoryPath & "\xulrunner")However that does not work.
I downloaded visual basic express 8 but don't seem to have any help files included. how do i get them.
View 5 RepliesHow can I have a simple digital clock in my application? I need it to be a label control - thats the tricky part.
Basically it just reads '5:33 PM' or '5:33 AM' etc - not 24hr time.
How can I take pictures using a digital camera based on a button click in WinForm application? I tried googling, and got WIA. Used WIA 2.0 and wiaut.dll, and it is working fine for webcams. But I am not able to automate the actions of my Sony W220 camera. I tried googling for WPD, but it appears to be active only in Windows 7 and Vista, and I am using XP Sp2
View 8 RepliesI need some advises on showing digital signal indicator at this moment I use radio button...but it's then becoming complicated because I have to make them "true" or "false" anytime.
View 24 RepliesI was able to include (add) an existing project to a current one. I finally got all the references and libraries in place, and everything works great. I decided to move forward with development and started adding some features...much to my surprise, when I debug none of the controls are there (In the form belonging to the added project)...
Do I need to develop the second project from it's original solution (and not from within the combined solution)?
I have create an application in vb.net and ms sql 2005 as database storage. How do i create an installer that can be included in a CD. What i mean is if i want to install it in the virgin PC the Installer CD would be able to run the application without an problem. Which software protect licensing installer i can use to create this.
View 3 RepliesI have a non-click once setup to install a windows service. I have added the prerequisites as specified (extract from doc below). But when I build the solution the prerequisites do not show up. I am choosing .net, mdac 28, crystal XI r2 and the option to download prerequisites from the same location as my application. The program dosen't look for them. What am I missing? I have another windows service that is setup identically and it drops the prerequisites in sub-directories off the.. elease folder and the setup installs them if necessary. To choose which prerequisites to install
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I just build a program and when I install to a computer it gives me an error. The eroor is simply to install .net 2.0 and then everything works fine. So I was wondering is there a way I can package the program so it installs .net first and then the program automatically?
View 2 Repliesmy final year project title is monitoring weight changes in digital scale / indicator.i bought one digital scale online from A&D in order to test out my system.however unlikely other device (GSM MODEM, RFID...) there are no drivers or libraries (DLL) from this device.. with only the digital scale and (rs232 9-pins to usb convertor i bought) i was like lost wondering how to get communicate with the device.i have been search around in the internet for similar post.. but there are most likely dealing with the data receiving already. is there any journals or manuals for references? i willing to study over this and not simply ask for full codings.
- how to communicate with the device (serial port communication)
- is there any driver / libraries need to install bfore everything?
OS using - windows 7 ultimate (laptop)model of device - A&D JM-SERIES 150lb
I want to take picture directly on my employee database form. I means, how to control digital camera from Visual Basic form? how to take picture through VB Command button.
View 3 RepliesI'm looking for guidence on using digital certificates to manage website user authenication and access. i am using a website that has this and what happens is this... the company issued me a personal certificate, that i installed on my local machine. When i connect to the website it checks my local cert store for a cert issued by them and if none is found, no entry, if multiple are found, then a box displays to allow you to pick which one to use.
View 1 RepliesIm an electrical engineering student, and I am trying to utilize the serial port to give me high and low digital states. What i want to do is simply turn on an LED or turn it off. the basic gist of what I have been trying currently is that on a button click, serialPort1.DTREnable = enabled or disabled, indefinitely until the next button click.
So far, I have only been able to get the LED to momentarily flash... It seems to begin in an active state flash off, then immediately, return to its active state. I am using Visual Studio 2008. Can I use DTREnable to generate on/off states by enabling or disabling the pin? Is there a tutorial somewhere for electrical engineering applications using visual studio 2008?
i have a problem with my graduation project, i need to take a picture shoot automatically based on a signal from the parallel port, and save the picture on the harddisk , so the MATLAB will read this picture to process it.
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Here is my issue/question. I am relatively new to VB.Net programming, and I have been assigned the task of creating an application that will go out to a Secure web site and download a file. My first issue is it best to do this using a Windows form, ASP.Net or what. My second and main question is how do I authenticated to the secure web site in .net code?
Upon connecting to the secure web site it asks me for a certificate, which at the moment I have to manually present, however we would like to automate this. Then after it authenticates I have to go a few more pages in before i get to the file that needs to be downloaded.Although this file changes daily it has the same key tag so I can hardcode that into the download application. I just need to figure out how to programically authenticate to the site with .Net
I have added an XML file (File.xml) into a project (I can see it in the Solution Explorer), it resides at the root directory level of the project i.e. the same level as the VB program (.vb), the bin directory and the References directory etc..
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I have the following code:
Private Function ReadRequestedSecurityToken(ByVal rstr As XDocument) As RequestedSecurityToken
Dim requestedToken = (
From rt In rstr.Descendants(WSTrust13Constants.NamespaceURI.ToString &
WSTrust13Constants.ElementNames.RequestedSecurityToken)
Select rt).FirstOrDefault()
If Nothing Is requestedToken Then
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I created a empty Web application called Grocery Store and added a new web page named Default.aspx to the application. I have changed the DOCUMENT objects Title property to Grocery Store. The DropDownList control needs to contain the store numbers listed. I need when the user clicks the Enter Button, the buttons Click Event procedure should display the names of the manager and Assistant manager.
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I would like to enumerate an assembly's referenced assemblies and determine what should or should not possibly be included as a dependency in deploy scenarios.For obvious reasons I would want to exclude those assemblies that would be included by the CLR install.Is there any way to track back an assembly to being part of the default install of the CLR?
View 9 RepliesI am including a file in my project where the BuildAction is content and Copy to Output is Copy Always However, when I publish and give the user a way to copy the file to another directory I keep getting File Not Found.The code looks like:
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