I'm trying to download files and fill the progressbar correctly. The problem is that I'm missing something in the code below, because it doesn't work:
Dim streamer As MemoryStream = New MemoryStream
Dim reader As StreamReader = New StreamReader(streamer)
Using fs As New IO.FileStream(PathAndFile, IO.FileMode.Create, IO.FileAccess.Write)
[code]....
However, this is downloading the file.
I am having difficulty retrieving the correct PIN code from my database, for an ATM banking application. When someone enters a correct PIN code that is already in the database, they gain access to their ATM account. If incorrect, then a message box appears. I am having an unusual problem where, the system is partially working. The code I have, is preventing the user from accessing their account, in the correct manner, eg. message box pops up. However, it is also not accepting the correct PIN code. The most unusual thing about this, is that, if the user enters the number "1", the message box won't pop up, however it will still block the user from accessing their account. And even stranger again, after entering the number "1", trying it, then erasing it, if they enter the correct PIN after this, it will allow them to access their account.
Here is the code:
Public Class ATM2
Dim Pin As Integer
Public Sub Retrieve()
[Code].....
Is it correct to correct properties values on the fly? for example: (note the .ToLower)
Public Property X() As String
Get
Return _x.ToLower
End Get
[code]....
i'm working on a system that upgrades a basic version to a proversion but i have a payment gateway . it generates a code in an SQL DB.now i have a form in VB that has a textbox and a button how can i let VB connect to my SQL DB receive the code and then check if that code is correct and if its correct download silence the pro file. from an url.
View 7 RepliesI have created a basic query generator which allows a user to select the Select, WHERE and criteria attributes using a number of checkboxes.However i have got stuck. In the results form i have the following code
Private Sub DisplayRecord()
RichTextBox1.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(0)
RichTextBox2.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(1)
RichTextBox3.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(2)
[code]....
The program keeps on crashing if the user does not select the corresponding amount of display records from above for the amount of attributes they want for the SELECT part of the query in the intreface in form 1.
How would i go about making something where the number of SELECT attributes selected which are listed in a string create the correct number of textbox fields in the results form (form2)
I have a databound combobox that contains 2 fields but obviously only 1 is displayed. My question is...how do I retrieve the field that is NOT the "Displaymember"?
View 2 Replieshow come when I retrieve my data from SQL my date field returns the date along with a time of 12:00:00 AM???? The Sql BD Type is Date and it is a date only in the SqlDB. I'm populating the date into a textbox.
View 2 RepliesMy problem:
Given a list of DLL paths, find their version number and all assemblies referenced. Some may point to the same DLL but with a different path or version.
My Code:
Dim otherDomain As AppDomain = AppDomain.CreateDomain("otherDomain")
otherDomain.DoCallBack(Sub()
Assembly.ReflectionOnlyLoadFrom("filePath")
[Code].....
retriving the DNS server ip of my computer. But with my codes i only manage to the IP address of my computer.
Dim IPAddress As IPAddress = Dns.GetHostEntry(Dns.GetHostName).AddressList(1)
Dim strIPAddress As String = IPAddress.ToString
TextBox3.Text = strIPAddress
My add handler is not correct for some reason. I don't know what I have incorrect. trying to add a row to the datatable upon formload. it says that NewM8_CustomersRow is not an event for BA_TruckingDataSet.M8_CustomersDatatable
[Code]
I am doing homework, but i've done the work already. My Issue is, I cannot get my program to compile the calculations for the payments properly. Maybe I'm just too tired to see it, but It should be working from my view. Here is what i have so far...
Module MortageCalculatorWK5
'Loan Amount Input
Dim LoanAmount As Decimal = 200000
[Code].....
I'm a bit confused at why this code does not trim "say" but instead only the first letter "s".
Public Class Form1
Public Declare Function GetAsyncKeyState Lib "user32" (ByVal vkey As Integer) As Integer
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
[code].....
I am new to VS 2010 and in my application I want to add an app.config to contain to variables.I have been adding the app.config through the solution explorer, add item, general tab, configuration file.However i have noticed each project creates a default app.config in the project folder but which doesnt show up in the solution explorer.
View 1 RepliesI am trying to get a handle on the correct way and easiest way to do things. By easiest I am not talking about being lazy just accessing and modifying later on. I have started using my own classes and such but I have a few questions. Sometimes I want to create a control on the fly through code instead of using the designer. Should I create this control in the main form file or in a separate class? If I make it in another class it seems harder to access later on. Then again if I dont know that the control is going to be created(user clicks a button to add a control) how can I access it? Also it seems alot harder to access certain things when it is in another class. For example if I create a new window in a class and then want to check if it is there or not it is alot harder to do.
View 5 RepliesI have this student table with these columns: ID and Name. I binded this table to a combobox to display student's names. My question is how would I get the right student Id (in vb 2010) when I selected a student's name so that I can assign the student ID as a foreign key to the Teacher table.
View 7 RepliesMy VB code uses a timer with a slider, and uses AddSeconds. I am trying to use the slider with a min value of 0 and max value of 600, and set up ticks every 30 seconds between 0 and 600.At a beginner level coding VB,I am not sure how to set some of the correct values in the slider's property box.Min, Max and Value, I am guessing are 0, 600 and 0 (sets the slider thumb starting positionat the far left). But I am not sure what other values, like tick and small and large change, etc. need to be set and set to what value? I've read online, but so far cannot find how to configure this.
View 10 RepliesI want to be able to make a program that incorporates my spreadsheets so that I can get the the results of the spreadsheets without the look of spreadsheets, also everytime I let somebody loose with one of my spreadsheets it needs fixing within 24 hrs as they have totally screwed up the formulas. is Visual Basic 2008 the right program to do this?
View 2 RepliesI'm trying to build a tabbed a notepad, I was using the tutorial from DIC to guide me along.The problem is, when I go to click save, how do I tell it to save only the tab I have open?Also, It crashes at line 15 of the SaveAs function, Error message says "Object reference not set to an instance of an object"Here's my code:
Globals:
#Region "Globals"
Dim Tab As TabPage 'Holder for the currently selected tab page
[code].....
I have a rather simple task, retrieving an image file from a virtual folder outside of my ASP.Net web Application (The Virtual Folder is in the root of the website) and then displaying it in an image control. I am able to to access a Virtual Folder that is within the web site. Here is my code that
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim sourcefile As String = Server.MapPath("~/Common/Images/LAPDPatch.jpg")
Image1.ImageUrl = sourcefile
End Sub
What am I doing wrong?
Ok, I was able to figure it out: Ok, I was able to get it working, I was using the wrong "slash" character I was using the forward slash instead of the back slash:
Dim sourcefile As String = Server.MapPath("VitualFolderName") & "ImagesLAPDPatch.jpg"
I got a weird problem here like I got a site that users can post comments on a friend profile page.Everytime a user post a comment my application sends e-mail to that page owner, you know to inform for a new posted comment on his/her profile page.The problem is I want to stop the application from sending email if that user has just recently posted a comment say like 5 hours ago/earlier.Here is the function I use that would try to check it:
[Code]...
I've created a module for my website and when a button is clicked, it calls a VB sub on the server.
I need this sub to retrieve the values that were filled in on the form, but the things I need to retrieve values from are not asp controls, they are simple <input> and <select> tags.
How can I retrieve values from input on a .aspx page from VB code executed behind it?
Public Class Class1
Public mSize As Integer
End Class
1) How to define another method inside the Class1 that allows other programs to retrieve the value of mSize
and
2) How to disallow client programs from directly accessing mSize.
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String
[Code].....
how do we connect database in access after con.Close() since we do all operation after the con.Close() and works properly.
I am doing invoicing using VS2008 VB. I use Crystal Reports to produce the invoice. I create an in memory dataset to pass to Crystal Reports. What I would like to do is save the dataset I sent to Crystal Reports as an audit trail of the exact invoice. It would only be retrieved in the event of a dispute concerning the original invoice. I thought of using the WriteXML, ReadXML. But that would overwrite the existing XML. Does anyone have a better way of saving the XML for future retrieval?
View 7 RepliesI have MSaccess database.I have 2 tables 1) CUSTOMER TABLE=----CUSTOMER ID-Primary --AUTO NUMBER2) ORDER TABLE =----(CUSTOMER ID--Foreign KEY) Now From the front end using VB.net I have an page in which if i enter Customer details and press button add .I have to INSERT into values into CUSTOMER TABLE and I Also at the same time INSERT into ORDER TABLE with this CUSTOMER ID which i generated now.How is it possibl
View 13 RepliesDim NewOutwarsDeliveryNoteNumber As Integer
Dim iSql As String = "SELECT MAX(OutwardsRefNumber) FROM NewOutwards"
Dim da As OleDbDataAdapter = New OleDbDataAdapter(iSql, LoginForm1.Conn)
[code]....
when I try and run this code it gives me the error that says "Column 'OutwardsRefNumber' does not belong to table ."BUt I am 100% sure this column is in my table. what can I do to correct it?
I have a code here which is to insert values in both the tables which has Relationship.[code]...
View 4 RepliesI'm uploading a flv / swf file and I need to capture the dimensions of those files so I could later retrieve it from a database and embed it into a page.
how I could do it in code behind?
I'd like my application to be able to detect a where a particular USB device has been mounted, and adapt accordingly. Ideally, I'd associate paths with a USB serial number, rather than with a given path. However, I cannot figure out a simple way to access these unique IDs from VB.Net code.
View 1 RepliesI have this XML:
<root>
<data name="lnkViewResultResource1.Text" xml:space="preserve">
<value>bekijk de resultaten</value>
</data>
[code]...
But, unfortunately, it is not working, it is not getting anything.
