I am writing a program which detects a development board I designed which communicates with an FTDI chip. Right now my program scans any COM ports and generates a list, which the user will then choose from and connect with that device. The problem is that I want to isolate that list to only the devices which I designed. The FTDI has a unique manufacturer and device ID, but I only know how to access this data 'the old fashioned way' (i.e. through device manager).
What I would like to know how to do is determine the VID and PID of a COM port from VB, so I can dynamically get rid of any devices which do not meet the proper requirements and thus my list will only show the correct devices.
Right now i have a form in the VB where there are 2 combobox in it. user can choose from a range of products that comes together with some description and these are to be stored in a database table.. when i retrieve these data from another form in VB, i'm only able to retrieve the first product and it repeat e same product in my second textbox.
I have 2 datagrids. One to show Product information and another for Product purchase details entry. Both share the same dataset. The dataset (ds) is filled up with columns from 2 table
The problem is that: Showing from dataset or entering new records into the dataset is no problem, but am not able to save the modified dataset into DataBase. SqlCommandBuilder failed to generate the corresponding INSERT, UPDATE command as the dataset has multiple base tables.
I am looking for a free utility or way to protect my software by requiring a Product ID (Which will be created when a customer requests a paid license) to use the application after a demo version. Like most shareware apps.
There is another closed post about this problem but it didn't solve the problem for me...Error occurs trying to run a ClickOnce app. In my case the app previously works and just stopped working with the error"the application cannot be started please contact the vendor"Add/Remove didn't remove the app and Re-installing didn't work either.To solve the problem:-Create a new user with Admin rightsLog in as new userGoto directory C:Documents and SettingsoriginaluserLocal SettingsApps2.0Delete any 'strange' folders, i.e. 9JN9HTAJ.Q0WLog offLogin as original userRe-installThis worked for me.
I have an application that is distributed with click-once. One of my users already makes use of it for quite some time without any problems. Only recently, he is not able to launch the application anymore. During the check that is made to see if there is a new version of the software, he gets the message: "Application cannot be started, contact vendor" If I copy my application manually, he is able to launch it without any problem.I included the detailled log below.
PLATFORM VERSION INFO Windows : 5.1.2600.131072 (Win32NT) Common Language Runtime : 2.0.50727.42 System.Deployment.dll : 2.0.50727.42 (RTM.050727-4200) mscorwks.dll : 2.0.50727.42 (RTM.050727-4200) dfdll.dll : 2.0.50727.42 (RTM.050727-4200) dfshim.dll : 2.0.50727.42 (RTM.050727-4200)
I created a small project in VB using a SQLExpress db. So far everything has been fine. I need to take the little I've done to the customer for a look and feel approval.
When attempting to publish the project, I get the following errors:
"The install location for prerequisites has not been set to 'component vendor's web site' and the file...." You know the drill.
The two files are SQLEXPR32_x86_ENU.EXE and SQLEXPR_x64_ENU.EXE
I have downloaded the files and put them in the following directory:
CODE:
When that didn't work, I copied them to
CODE:
Same error
What's different about SqlExpress than other prerequisites?
I am trying add the prerequisites with my setup i have set the prerequisites download location to the same whwere my application is and now i am getting this type of several errors.
Error 1 The install location for prerequisites has not been set to 'component vendor's web site' and the file 'DotNetFX35SP1dotNetFX20aspnet.msp' in item '.NET Framework 3.5 SP1' can not be located on disk. See Help for more information. D:SETUP PACSSystemPACS 1.1.1PACS 1.1.1PACS 1.1.1.vdproj PACS 1.1.1
I had did some search on web but they all say to make change in Product.xml file but they did not say any thing about what to change. The prerequisites i am trying to add are.
windows installer 3.1
.net frame work 3.5
SQL server express
setup build fails every time when i try to do this.
This is my project for class and this is what i have so far but my teacher gave me no credit. What am i doing wrong? i tried rearranging it but no success.
A fast-food vendor sells pizza slices at $1.25 each, fries at $1.00, and soft drinks at $0.75. Write a program to computer a customers bill. The program should use 4 subprocedures that do the following:
1. read in the amount of each item ordered
2. calculate the total cost
3. display an itemized bill
4. read in the users full name from a textbox, and display a sentence, addressing the user by first name only and in upper case characters, informing the user of their bill
Here is an example itemized bill: Item Quantity Price Pizza slices 3 $1.25 Fries 4 $1 Soft drinks 5 $0.75 Total $11.50
Example sentence for point 4: if the user name was entered as John Smith, you would display the sentence JOHN, your bill is $11.50.
MY
Public Class Form1
Sub pizza(ByVal pizzap As Double, ByVal pizzanum As Double) lstoutput.Items.Add("Pizza Slices" & pizzap & "and" & pizzanum & "is" & (pizzap * pizzanum) & ".")
I have a report made in Crystal Reports XI. The report is generated and exported to PDF in visual basic script using COM interface. Generally everything is running smoothly, but in one case generation breaks with error: Failed to retrieve data from the database. Details: [Database Vendor Code 9421]
Database used is MSSQL 2005 connected over ODBC to CR XI. When I am opening report with exactly the same parameters in Designer, everything works fine.It looks like it is data related, but it is hard to trace since the whole report is pretty sophisticated. Anyway I spent half a day on crawling over Dr. Google and it seems that he has no clue what might be an issue.
I have the following directory structure in my asp.net webdirectory i want when any body access anypage inside my admin folder then it auto redirect to login page of admin folder until they login
I have a product table on datagridview and I would like to add checkbox to each product so that I can mass delete them instead of deleting them one by one.
I am trying to read caller id from a internal modem. modem is caller id enable and it works in hyper terminal. but when i try from vb.net it only shows 'RING'. here is my full code
I am using VB 2005 and need to trap a serial port timeout. I use a standard try/catch block, but if no characters arrive the code still hangs at the ReadByte call. Here is the code:
Recently while trying to help someone with an issue using USB SerialPort's I discovered sometheing interesting when the ports Handshake was set to RequestToSend. My setup COMx <---> BreakOutBox <---> COMy COMx and COMy are on the same PC. The breakout box is used to create a null modem, pins 2 & 3 crossed, pin 20 to pin 6.When the handshake was set to RequestToSend every Write resulted in Carrier Detect and Ring being raised. Is this just my adapter or are all USB SerialPorts like this?Serial Port Random Microsoft® Community Contributor 2011
I have wrote this program (for PDA), to connect a PDA to the PC via RS232.It only works half way.
If I send anything from the pda to the pc, I receive data correctly.If I send anything from the pc, then the pda hangs up.Can anybody tell me what I'm doing wrong?
Also, how do I make sure the port on PDA is closed when quitting the application?
The GUI below shows the same product I inputted. If I inputted the same product and a new Quantity inputted, it will add to the current Quantity inputted. Same goes to the Total Amount will change.
I am a DCOM/Standalone Client-Server programmer who is now moving to eCommerce. I am building my first complete website for my wifes company and I have a design question for you gurus out there.
I looked at alternatives for shopping cart/product display and none of them meet my needs (e.g. ProStores). I wish to know which type of database you would use to have Many Products - Multiple Images per Product - possibly Multiple Vendors per product. I have begun a RDB using access as a prototype and I feel there was no faster method than inserting every product manually. Is there an alternative? And would you use a frame to display this data?
Would you store the images to the DB or a file reference on the host. I have begun with a file reference and truncated the path to only relate to where the file will reside on the host.
i have a inventory software in visual basic and sql server. there i have product info, product receive and product sales option. there i need to add a new feature in product. every pcs of product will have barcode which will be generated by my software at the time of receiving the product. and at the time of selling the product, the user will only scan the barcode by the device.
I have recently completed a project using VB.NET 2008 express edition. Now I have to create a Product Key Generator for which I have no clue how that works. I wanna do it in such a way that the product can't run without the valid key and the key can only be used for one copy of the product. Also if possible how do we generate a Unique Product ID?
I have a product database....in which I have productid,prodname,inventoryvalue,reordervalueI have to design a email system that as soon as the product reaches the reorder level it shud generate an email....but the condition is there will be many products in the database....and on one button click it should send only one email but with all product names those reached the reorder level.... tried the below thing but completely a waste...
Private Sub btnEmail_Click(sender As System.Object, e As System.EventArgs) Handles btnEmail.Click 'Open Connection
I need to get the product of the 2 columns in the same row but my problem is the values of my datagridview come from database and the number for rows is not fixed.
I am wondering how to make a product key as a license key for my VB.Net windows form application? Because at the end of the day, i would have to package it as a exe file and i would like to include in a license key for the user.
And also may i know how to package the whole project as a exe file such that after the user excute the installer, everything will run. like how you install windows xp like that.
