I have only just started on .Net (C#, VB) programming. Does anyone know how to retrieve live currency exchange rates data for example SGX stock market exchange rates. I am supposed to do a program which retrieves live currency exchange rates and then make use of the data on a currency converter.
View 3 RepliesI have only just started on .Net (C#, VB) programming. Does anyone know how to retrieve live currency exchange rates data for example SGX stock market exchange rates. I am supposed to do a program which retrieves live currency exchange rates and then make use of the data on a currency converter.
View 1 Repliesget the current exchange rates from a website like yahoo?
View 5 RepliesGet currency rates from a website? Can you do that in just VB.NET?
View 5 RepliesI have 2 applications which we can call for example Client/Server.
I would like to exchange data between these applications but basically don't know which is the best route.
I have managed to speak to both applications using text files, but there must be a better way of doing this.
I need to convert a VB6 application into VB.Net Windows application. The program pulls data from MS Exchange (UserID, firstname, lastname, etc - not the emails themselves) and places it in a .txt file. The code has been converted, but the program does not work. When the application is run, the .txt file is created, but is blank and I get a pop-up that shows the following, "trying to access email in outlook do you want to allow this?". The popup box is gone in an instant and when I try to click on yes, it does nothing. I always have to end the program as it is non-responsive.
View 1 RepliesI need to convert a VB6 application into VB.Net Windows application. The program pulls data from MS Exchange (UserID, firstname, lastname, etc - not the emails themselves) and places it in a .txt file. The code has been converted, but the program does not work. When the application is run, the .txt file is created, but is blank and I get a pop-up that shows the following, "trying to access email in outlook do you want to allow this?". The popup box is gone in an instant and when I try to click on yes, it does nothing. I always have to end the program as it is non-responsive.
View 14 RepliesI am writing an application in VB 2008 Express which will consist of a parent process which calls / runs / executes several child processes. I can happily start up a utility program from the parent process, passing parameters to it through Process.StartInfo.Arguments
View 1 RepliesI need to realize an app that read appointments from an exchange server or (I think it's easier) from various outlook folders.
I can retrieve datas from my own calendar using this
Dim objOLApp As Outlook.Application
objOLApp = New Outlook.Application
Dim myNamespace As Outlook.NameSpace
[Code].....
Is it a good practice using global variables in a VB (.NET) application in order to exchange data between forms? As global variable I mean a public variable defined in a module and not a public member or property of a class. Moreover as my personal rule I never access a global variable from a class, but I pass the values to the class via functions.
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I developed a simple examination system with registration forms. I used VB.Net as the programming language. I haven't tried manual coding for my problem yet.Anyway this is a project for the company from which I am an intern. The plan is to get every client pc to have this examination/registration application and this application will send the personal info and the score to a central database(server pc).I used MySql as the dbms and developed the application on the same machine which means that the Database server I used is only on the local host.
Now I was about to try to implement the application to one client pc(as a beta test) and installed the necessary files(.net framework) and I also installed MySQL Server(and workbench) in the server pc.When I run the application in the client PC it didn't detect/connect to the ServerPC's MySQL server instance and therefore was not able to record the dummy values I input in the client application. Take note I changed the connection string of my app to point to the ip address of the serverPC.
Should I install the MySQL Server(and Workbench) to every ClientPC so that I can create a server instance that uses the REMOTE HOST option and configure it such that it will connect to the SERVERPC's Database?How should I setup the server so it gives access to the application I installed in all clientPCs?
I am trying to make an application, that gets data from OPC server to form1 and displays some pieces in form2. The app works that way: on start - form1 starts. Form2 must be started manually after form form1 is statrted (i mad a buttton for that). If some values in OPC server changes i need to see some of them in form2. Here is a sub which shows how do i get data from OPC server.[code]but nothing happened when i opened form2, nor on change of data in OPC server (i wrote the code that on form2 load all values are shown in msgbox, message box did not show up).
View 39 RepliesI wanted to know how can two independent .NET application can exchange data. Something like DDE which was there in older versions.My purpose is to have an upgrade application (which is a seperate .net program) and my main application. Now I wanted to know that when my upgrade app runs it should be able to confirm that my main application is not running. How can I achieve this ? I know thru process name I can find out if my main program is running or not but thats risky if there is another program with the same name.Thus I wanted a way whereby my independant .net program (upgrade app) is able to determine if my another application (main app) is running or not.
View 2 RepliesI am trying to create a currency converter that will convert currency. I have a text box to enter the amount and 2 combo boxes to choose which currency you are converting from and to.
I am using a webservice site XML that contains the conversions.
The problem is I cannot get the display to work properly.
I have blocks of data that arrives from a remote terminal via RS232/COM1 port.
Each block has carriage return at end of the data.
I like to receive the data direcly into EXCEL so it will feel like the remote computer is typing into my EXCEL.
Do I need an interface program outside EXCEL or a MACRO can do the same and how do I do it?
Is there anyway to have the serial data go to keyboard buffer that EXCEL operates from it?
So I know ("C") converts it to currency, but when I do that I get "Expression is not an array or method, and cannot have an argument list."[code]...
View 2 RepliesI would like to know that how am i going to validate the data inside a currency field to see whether its format is correct or not ?How am i going to reload the data when an action is canceled ? For example, when i click the cancel button, a message box will pop up and ask the user whether he/she want to cancel the action. When the user click yes, the action will be cancel and the data inside a database will automatically display inside the text boxes, as if everything is start from the beginning
View 5 RepliesWhat is the most appropriate data type for storing currency values in VB.NET?
View 1 Repliesi'm having a problem with a column in my datagrid. Basically i'm getting the data from a database table and putting it into a datagrid. Then i've added an extra column to add up the 2 prices from the table.
I can do that fine, but the problem is that it only shows the total price to the nearest pound.
This is the bit of code that adds up the 2 columns
[Code]...
Can I Post a Windows Application that uses Excel for live data calculations? Basically from the Windows app, a user makes a menu selection and which in turn opens an excel file in memory using it for calculations. These files are put together by different groups and formatted for the Windows app to build interfaces based on each file.I also accompany an .mdf file as well. Is all this possible for customers to access and run this with Windows Azure.
View 2 RepliesI have a code that binds the data from the database to textboxes. The problem is I want to make one of the textboxes Payment use a dollar sign.I tried formatting it as shown in the code below but only the first record gets formatted, the rest do not. When I click the next button, the dollar sign disappeared.
Here is a portion of the code:
bs = New BindingSource(ds, ds.Tables(0).TableName)
Me.txtPayment.DataBindings.Add("Text", bs, "Payment")
Me.txtPayment.Text = Format(CType(txtPayment.Text, Decimal), ("c"))
I have tried everything else I know, FormatCurrency but no luck.Payment is the name of the column in the database, the data type in SQL Server is Small Money.
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I have a quick question regarding the serial port and timer tick event. Basically i have a micro processor connected to the PC via the serial port. With a baurd rate of 38400 set.When the PC sends the micro ":K + VBCRLF" the micro response with a string of information (ASCII encoded) and delimited with a "," and at the end of the transmission a cartridge return line feed is added.Example of sent string:
"12,1134,123,545,76,6868,34,232,1,2,3,6,7,8" These numbers are then split using the VB mystring.split(",") function into an array of strings, then the numbers are converted using ctype. After which my UI is then updated.I have Witten the code in a tick timer event using a timer count of 300ms. Although the program runs and the UI is updated i end it with lots of exception errors. I think allot of this is down to the serial port either timing out or not reading complete string.Or possibly the timer has not executed all the code before another tick event happens Even after adding a few try catch statements i am still having problems. Can anybody suggest a better way of doing it?I was thinking of using a do while loop and at the end a sleep function instead of the timer tick event.I need the speed as i am trying to read and display live data.
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I need to modify this code to add 1% interest rate to the new and used rates when less than a 20% down payment is made.
Public Class Form1
' Class-level constants
Const dblMONTHS_YEAR As Double = 12 ' Months per year
[code]......
I need to modify this code to add 1% interest rate to the new and used rates when less than a 20% down payment is made.
I've already added in the constants for the increased interest rate, but hit a wall there.
Public Class Form1
' Class-level constants
Const dblMONTHS_YEAR As Double = 12 ' Months per year
[Code].....
I have an app that connects to a mysql database.This app uses foreign currency rates in a big way to establish prices for various commodities.At the moment these rates are captured into the db manually each day.
My question is : Is it possible to obtain these rates at regular intervals each day from the Internet?
And if so how would one go about achieving this operation?
The Sever on which the db resides does have a permanent connection to the internet.
I want to make live search form like when user enter 1 char then it ll find all data start with or contain letter.i have use the sql like query with textbox textchanged event but it is too slow any other method to make it fast?
View 4 RepliesI want to make a database of all the xbox live arcade arcade games on the xbox live marketplace, I need to parse an xml file and add the needed data from the xml node into a datagridview.Here is the xml file i need to use to grab links and other data about the game:
[URL]
Being the noob I am it took me about 6 hours to figure out how xml works and to write some code for what i need to do.
Here is what i came up with:
'for grabbing the name of the update
Public Sub updatename()
Dim xmldoc As New XmlDataDocument()
[code]....
That code works fine.Now when i add another column to the datagridview called "update size" i want to know how to add the grabbed data from another sub i made to the new column.What would the code be for adding the strings for the new sub into the seconds column? the first was, DataGridView1.Rows.Add(str)" . So what would the second be ?Also another question i have is how do i put an image in an imagecolumn by a web link, not a local picture.
What baud rates are supported by the serial port object in VB 2010?
View 1 RepliesI am learning vb and one of my projects is to make a price schedule using full day and half day rates as well as adding a deposit, etc. I don't want you to tell me what to do just please what I am missing. I haven't been able to get it to run but if I can I can salvage some points. Public Class frmEddies
[Code]...
So I'm trying to program a selection structure to display different commission rates per sales entered in a textbox.I need to have the commission total display alone. I have the simple interface done, but I'm having trouble forming the selection structure.
View 1 Replies