Design Id Card Using Data From Database?
May 18, 2012i try using both detail view and form view but they are not flexible enough to place my picture where i want it
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Read Smart Card Data Using Card Reader?
Dec 23, 2009i want to read data from smart card using card reader.i need vb.net code help as well as total process that mean what dll/exe will be needed and how can i determine that the card is inserted or ejected from card reader?
View 3 RepliesDesign Crystal Report To Print On Id Card?
Jun 6, 2011am designig softwear with vb.net 2008 and mssql server 2005 express that can print on id card. i have the query written correctly that can retrive employee info. including the picture on a report.my question is how to set the report to automatically pick the size of the small id card.
View 2 RepliesDesign Approach For Utilizing Data From A Database
Nov 6, 2011There exists a database that holds information on each planet in the solar system. The database has multiple tables.The program intends to access this data to display it to the user in a variety of manners. The program does not intend to manipulate the data at its source, though calculations on two fields may be performed to determine certain display characteristics.What is the optimal method for accessing the data?My initial approach, (read: gut feeling, no research) was to take each related row of data from the database and create an object of a custom class based on the data. So you might wind up with:[code]Then use these objects to perform whatever actions the program needed to. I ran into a lot of problems trying to implement this, so that I believe my design approach is fundamentally flawed.
View 1 RepliesDatabase - Design And Deploy A Data Driven Desktop Application?
Jun 28, 2011I am designing a desktop application that will be driven by local data. I am trying to determine the best way to accomplish this. The database would contain about 10-12 tables if I use a database and I would imagine no more than 10000 records in any one table (but honestly 99% of users would not have more than 1000 records). I am thinking about using SQL Server Compact.
Is this a good solution? I can certainly include this in my installation, but I am just wondering if anyone knows of a better solution? If this is the best solution, how would you suggest that I create the tables upon deployment? Should I just run "queries" with create table statements in them from my vb application or include a database file or what?
Capture Raw Signal From WiFi Card As Would A Sound Card
May 9, 2012Is it possible to capture the raw signal from a WiFi card in the same way you can capture the signal from a sound card? (I already found code for working with a sound card and for drawing spectrograms) I'm wondering because it would make a cool radio-type project. I'd prefer a solution that integerates well with .net (VB or C#).My basic goal is to capture the ambient radio waves and build a primative "telescope" of sorts. Using the built in computer hardware is just the easiest way to accomplish this. If you have any other suggestions about how to accomplish this goal in a different way please post it as an answer also.
View 1 RepliesDetect Usb Card Reader Device And When Swipe The Card
Nov 23, 2009I want to create an application that can detect usb card reader device and when i swipe the card it should read.The below code WORKS PERFECTLY IN VB.But when i converted it to vb.net it is showing some problem.Below is the code for that.
[Code]...
Insert Wild Card Character ' In Database?
Mar 11, 2012I am trying to insert a wild card character (') in sql database, but error is coming that STRING IS TRUNCATED.
Text1.text="D'John Is Writing Dev's Books"
Here there are 2 wild characters (') in the text. When i try to insert this text in database, the problem is comming. The whole string should be inserted as it is, as well as to be retrieved as it is.
Reading Data From SD CARD?
Jan 25, 2011I am doing my academic research on ARM MINI 2440 and "i want the code to read the data from sd card and send that data to the serial port.
View 16 RepliesEID SDK - See If Card Inserted Into Reader Then Read Out Data
Mar 14, 2010I am trying to use the eID SDK (for using the belgian ID-card) in VB. It's supported but I can't get it to work. I have never worked with sdk's before. I did manage to get it to work in c++ in console but I really need it in visual basic. Also the VB examples that come with the sdk are made in an older version of visual studio and when my version tries to convert them they don't work. I want to use the sdk to see when a card is inserted into the reader and to read out the data. (both i got to work in c++ console).
View 2 RepliesGetting Data From A USB Magnetic Swipe Card Reader
Jun 18, 2009I am working on writing a program that once a magnetic strip card is swiped, the number on the card is validated against a database storing information on the user. What is the best was to get the stream from the USB swipe card reader, build by Magtek, and then just pull the 9 digits I need? I have currently been using an Excel macro that searches the Excel document, but I want to get away from this system and make it more user friendly.
View 3 RepliesPOS For .net MSR DATA EVENT Is Not Fired When Swipe A Card
Oct 11, 2011I am developing application which will read credit card no without generating keystrokes for same in POS for .net. I can enable device but when I swipe a card MSR_Dataevent is not firing. EDIT: I have done below code:
[Code]...
Save Data To Memory Card In HTC Viva?
Aug 3, 2010I'm trying to do an application for a HTC viva PDA, and i'm a begginer in visual basic programming language so i don't understand much of it.The application is intended to receive data from a data aquisition equipment that connects with the PDA trough bluetooth, i managed to receive data in the PDA, but i don't know how to save all the data that comes from the data aquisition device in a Microsoft excel format or in any other format i can work with.the code that is needed so that the software saves all incoming data to a excel file in the memory card of the PDA?
View 6 RepliesDatabase Connectivity - Design The Database In Access2003 And Forms
Jun 3, 2010I m working on an school management application, i design the database in access2003 and forms in vb.net2005. but i dont have any idea about the database conectivity. with the help of a book to connect with the db but i cannot save the data in the mdb file. in my application 1 add the followin buttons add new record modify record delete search using id or enrolment no.
View 1 RepliesUse With A Textbox In VB Swiping A Card With Magnetic Encoded Data?
Feb 15, 2012I have created a program in Visual Basic using Microsoft Visual Studio 2010 Professional. There is a textbox that I use in the program that when the focus is placed on it will take the data encoded on a magnetic striped card such as a driver's license or any card that has this kind of data encoded magnetically. Very simple to get the data as the program takes all of it upon the swipe without having to do really anything, however, the problem is that I don't know which declaration to use when the swipe has stopped - or the last character has been entered. Currently I am using TextBox1_textChanged as my declaration, but that is called every time each character is put into the text box. When you are swiping, this is an ongoing process until the last character is put in. So if I have a magentic card with 10 characters in it, this method will be called 10 times. Is there a declaration that I can use that only fires off whent he swipe has loaded all of the characters or some kind of loop that I can incorporate?
View 2 RepliesFind A Program That Can Read Data From A USB CCID Card Reader?
Oct 14, 2011I have been looking all over the net trying to find a program that can read data from a USB CCID card reader.
after several hours and several pages of useless info i thought maybe there is a way i could create a simple progeam in VB to read the data, so i started another long search for info also to no avail.
Does anyone know of anything like this or if its even posable?
Read Mifare Card And Place The Data On Textbox On Screen?
Feb 9, 2010how to read data from mifare card (ACR120S) and place the data on textbox on screen?? Jz like touch and go function. Thx...
View 4 RepliesReading ASCII Data From Magnetic Swipe Card Reader?
Sep 27, 2011We have the customers credit card number on file which we use simply to identify them when they swipe at our computer. The problem i'm running into is that when they swipe their card in the card reader (Magtek mini usb) it outputs the data as ASCII which looks something like %B followed by the credit card number in whatever textbox i have the program focused on. I'm sure i could just search the textbox for any 16 character number string and assume that is their card number, but i was just curious if there is some best practice to decript the ASCII output from the magnetic card reader.
View 1 RepliesVS 2005 Disable The Sound Card And Enable The Sound Card By Using Command Button?
Jun 27, 2011i have windows app i want to disable the sound card and enable the sound card by using command button
View 2 RepliesMultilingual Database Design In Sql?
Jan 11, 2012Need a procedure in SQL for translate a datatable in English to Arabic .I am having English table which is having category ID ,Code etc upto 25 columns in the SQL Database.We want to translate this table to arabic when user opts for Arabic .So need a procedure to convert this English table to Arabic.Do i want to use google translator for this case . Then how will it is linked with database .
View 1 RepliesImplement Smart Card And Private Key Stored In Smart Card
Jul 7, 2009how can implement smart card and private key stored in smart card by using vb.net
View 1 RepliesImplement Smart Card And Private Key Stored In Smart Card By Using .net?
Mar 19, 2009how can implement smart card and private key stored in smart card by using vb.net
View 3 RepliesSmart Card App - After The Transaction I Need To Again Enter The Balance In The Smart Card?
Dec 21, 2009i have to develop a ticketing package for a client...and he wants to use smart cards too...i would need to develop the package on a smart device i.e. a mobile application and will have to read the card on the device itself ...i have zeroed on the instrument from motorola. and an blue tooth connected printer to print the ticket.how to read the smart card ...i have searched a lot but have not found anything good.the smart card would contain the amt. balnce in it...and after the transaction i need to again enter the balance in the smart card...
View 7 RepliesDatabase Application Design Recommendations?
Mar 22, 2012The main purpose of the my app that I need your help with is, to deliver an always (or close to) up to date a list of files for the user to choose from for a variety of common purposes. For instance, opening the selected file in its native client editor application so the user can make changes. Another purposes would be to print the file, and I have others.
If nothing else (meaning recommendations for a better design that still keep my desired in mind) I'd like ideas on how to update my complex DataSet (background processing options, what's the most efficeient/quickest way to update my DataSet) as the list of files changes while my app is running and my app is designed to never close due to the long amount of time it take to load it initially.
The list must be always kept up to date while my app is running because not only the intial loading of data takes a lot of time but updates (new/modified/deleted) could potentially take too long depending on not only how much data to update/add (new files) but how efficeient my code is in updating the list. To be perfectly clear: If a new file is created then it need to be somehow (automatically preferably or manually i.e. button code) add to the list. If a file is deleted then it needs to bet removed from the list. And if the file has changed, perhaps some of it metadata or thumbnail image have changes so update the file's data in the list. All of which (new/modified/deleted) need to be as real-time as possble without degrading the server too much and without the user waiting more than a handful of seconds.
Listing all the files as quick as possible whether that be with or without metadata initially is very important because most of the time the user is going to filter (or scroll the list by typing) for a partial file name. Once the user filters/scrolls to the desired file there's a very good chance that he/she isn't even interested in the metadata, most of the time the user wants my app to open the selected file in its native client editor application so he/she can view or modify the file. The initial
load time of the data doesn't concern me as much as updates because the user can possibly do other things while it initially loads all the data as long as it not too long (more than a few minutes). From there the updates will either be automatic if possible (most desirable from a users standpoint) or the user initiated (e.g. button). Plus I'm thinking the updates might need to be done with a few different background processes (multiple threads) because I think I need one for periodic updates (e.g. every
15 minutes) and one background process for page updates meaning whatever the user has either scrolled to or filtered for, more accurately all files currently display to the user will be systematically update in the background so the user can still operate my app.
I'm currently using SqlDataAdapter.Fill to fill a DataSet object variable (which is bound [BindingSource] to a DataGridview control) to first populate the DataSet from the SQL query and then prorgammatically adds records (DataRow) for local files but please make recommendations. I don't mind big changes or starting over if necessary, I just want the best app possible based on the aforementioned criteria. I'm not sure if it complicates matters but I've also added custom columns in the DataSet for some special needs (thumbnail of files, booleans for tracking custom statuses). For the local files I'm currently populating the DataSet prorammatically (iterating a path/file string collect made by System.IO.Directory.GetFiles) since the list is first (and very quickly) populated with Vault files (which is always a far larger list than the local files) so . Again, I don't have to take this direction, make recommendations.
Design Pattern For Database Interaction?
Mar 12, 2012I've been studying design patterns off-and-on now for a project I've recently been working on. I've been fortunate with this last one not to have to work with databases, but will soon have an opportunity.
View 8 RepliesSql Server :: Database Design And Normalization?
Mar 29, 2011I am developing an "AddressBook" like project in VB.NET. While developing database in SQL Server2005, i want to follow the principals of normalization and keep its degree of normalization as high as possible. Fields i am using are these.
Create table AddressBook_Contact
(
Contact_ID int Primary Key,FirstName varchar(15),MiddleName varchar(15),LastName
[code]......
[OOD] Class Design For With Database Back End
Feb 6, 2010I was hoping that I could get some guidance from some of you guys on Object Design with Database back ends. I am trying to build what could be considered to be my first full scale application, which is a student tracker (simplification). While I have a reasonable idea of how I would go about designing the classes for the system, the bit that I don't know how to do is, how I would go about getting the data to and from the database.
For example with my other applications, I have done a couple of things;
1) Gathered all the data when the application started up, creating the objects then. Then when the application closed sending the data back to the database.
2) Have the code which deals with getting the data in the specific class, so the student class for example would take only one constructor argument which would be the studentID, then the class code would connect to the database and populate the object fields as appropriate.
3) Variations of the above. I have also looked into LINQ, which seems like it would be very useful if you don't expect your classes to deal with any business logic and just data, but I suppose it would be possible to create a wrapper class that would include the business logic.
[Code]....
[OOD] Class Design For With Database Back End?
Mar 11, 2010I was hoping that I could get some guidance from some of you guys on Object Design with Database back ends.I am trying to build what could be considered to be my first full scale application, which is a student tracker (simplification). While I have a reasonable idea of how I would go about designing the classes for the system, the bit that I don't know how to do is, how I would go about getting the data to and from the database
View 3 RepliesCreate Database User Interface Design?
Mar 31, 2012I am designing a database using access 2010 and I ve been asked to design the user interface with Visual basic.I actually have designed tables and their relationship and did some queries according to the requirements. how do I create user interface in VB from this point knowing I don't have any form and report designed in access?
View 6 RepliesLoop/design - Looping Through A Database With Pdf Locations
Sep 14, 2011I am looping through a database with pdf locations. The application is button click event driven. The problem I am having is that I display a pdf. If the user clicks on the button then the pdf information is inserted into a database and the loop should be taking me to the next pdf. However, this loop does not seem to give what I need. What ends up happening is the first pdf gets displayed twice. I think mainly because I display the first pdf onload, but when I click the button it agrees and grabs the first item from the database. And it ends up falling behind because its restarting the query and I cant quite figure out how to get the button to catch the first displayed pdf, or skip it entirely since I am using a welcome pdf. So on the welcome pdf that is supposed to be displayed initially the user clicks agree and it agrees to the welcome pdf instead of just skipping it. I am not quite sure how to just move past the pdf.
public sub onload()
display the welcome pdf
end sub
[CODE]...
Now if I run the code without the loop it works fine. I just end up having to run the app however many pdfs I have in my database.
query data
display data
insert data
Windows.Forms.Application.Exit()
To display pdfs I imported the com control for adobe so pdfs get displayed like this:
axacropdf1.src = my.mysettings.default.readpath & pdflocation
pdflocation is passed from a query fill.
I think I have an underlying design issue which probably precedes the loop.