I'm running into deep trouble with this structure variable!this is the structure
Structure StuRec
Dim strName As String
Dim strMNum As String
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the ArrScores() has maximum elements of 10 subscripts so i need to delete one recored of them. but it doesn't really seems to be working?
I'm running into deep trouble with this structure variable! this is the structure
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I want to be able to reference an element in an array of structures by the name of the element in a visual basic 2010 function. For example
Public Structure myStruct
Public element1 as string
Public element2 as integer
Public element3 as boolean
[code]...
Is it possible to reference a structures element by the element's name in a similar way to that shown above. The code shown above does not work, as the expression obj(i).[elementName] does not work as hoped.
explain what I need to do at the bottom here? I can not figure out what is meant by setting the element of the structure to the value.. Option Strict On
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I am writing a class and room scheduling program, and would like to use an arraylist that will contain structures. The structure has a couple of arrays in it for when the class meets, and I am having difficulties figuring out the correct syntax to declare the array in the structure. Additionally, in the syntax to access the array. For instance, say I want the MeetingDays to be T, F, T, F, F, F, F; the Meeting Times to be "8:00AM", "", "8:00AM". "", "", "", "", ""; and the Duration to be 75, 0, 75, 0, 0, 0, 0
Public ClassList As ArrayList = New ArrayList
Public Structure MyStructure
Private _ClassName As String
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I have an array of structures:
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An array of the above structure with 30 element. I want to sum the empsal of those emp elements whose emp.empName & emp.empAge is equal.
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I would like to bind the text field of a textbox to an element in an instance of a structure that I've created in a class module. When I try to create a Data Source using an OBJECT type, all I see in the tree is the name of the structure, not the instance I've created. If I select the structure anyway, the Data Sources tree does show the name of the structure and the element I'm interested in. How do I bind to a specific instance?
View 1 RepliesI'm writing a rather complex VB2008 programme, To simplify the things, here is the code:
Structure strucFirst
Dim Field1 as Integer
Dim Field2 as Single
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I'm not sure if the pseudocode above is possible in VB at all?
I'm having a problem that's driving me crazy; I can't understand how to convert the XML structure into a class structure (that I want to use to hydrate a XML document).
The XML document looks like this:
xml
<?xml version="1.0" encoding="utf-8"?>
<artists xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/" xmlns="http://www.spotify.com/ns/music/1">
[code]....
I have a number of rewrite rules for a lot of things that I did in IIS7, like removing trailing slashes, canonnical URLs, lowercase lettering, and such. IIS altered my web.config, and everything works fine on the website, like it should. But in the Visual Studio web.config, the opening < rewrite > statement is underlined in blue, and at the bottom of VS, it says that the element 'system.webServer' has invalid child element 'rewrite'. But this is how IIS made it. I didn't do this manually. Should I be concerned with this VS error, or should I just leave as be, since it's working how it should work? Here's an example of my web.config:
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Is there a way to control the way a browser behaves such as if I click on this link it doesn't navigate to that link but instead show me the source code behind that button?
View 1 RepliesI need to randomly pick an element from an array and I can only use that element three times,I can randomly pick the element but how do I go about only using it three times.
View 4 RepliesI have been doing well and also I am a noob I know it and you know it a lot has started making sense and I am evening figuring new things out without using Google but of course I have hit another snag in my program so here goes
I am waiting for an email to arrive (the page automatically refreshes) and then I want to click the link (I do not need to click to open the email or anything like that) I also have the code to click and navigate to the address reason being it was the only way I could figure out how to stop it opening in a new window on IE
So my only problem is I need a way to check every x seconds for the element and then if its there proceed with my code and if its not wait and then check again or however this is done in VB.If this is not the way its done please point me in the right direction the code I am using to find and then navigate to the link is
Dim emailpageelements As HtmlElementCollection = WebBrowser2.Document.GetElementsByTagName("a")
For Each emailver As HtmlElement In emailpageelements
If InStr(emailver.InnerHtml, "https://twitter.com/account/confirm_email/") Then
WebBrowser1.Navigate(emailver.InnerText)
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Module Module1
Public Structure structure1
Public TRANS() As structure2
End Structure
Public Structure structure2
Public X() As Integer
End Structure
End Module
I have spent several hours trying to delete a row and insert a row into an Access database using the OLEDBDataadapter and dataSets without any success. I don't get any errors it just doesn't update the datatable. Here is the last version of the code I have been trying to get to work. I have done a lot of searching and have
Data save
Private Sub SaveNumDte(ByVal ltoNum As String, ByVal ltoDate As Date)
Dim numTotal, x, MaxRows As Integer
[code].....
I'm new to VB 2008 after having spent a long time with VB6, so I apologize if this is a stupid question. But I'd really like to have this straightened out.
Let's say I have a pretty large structure that has lots of properties.
Code:
Now say that I want an internal database with about 10 instances of this structure total, describing, say, 10 different products that a store sells. When these values are loaded from a database, they remain totally static. (However, they can be different each time a program loads)
Now say that I have a class. Each instance of this class is a type of that BaseProduct structure. Meaning, each instance of the class pertains to one of the 10 types of products that the store sells. However, this class has additional properties that pertain specifically to each instance, which are not static.
Code:
Now, the problem here is... If I have 200 different transactions, each one contains an instance of BaseProduct. BaseProduct is HUGE, and is largely redundant (only 10 types possible), so I think it's a little silly to include a whole copy of it with EVERY transaction. However, the Transaction class really needs information regarding the base product it pertains to. Is there a way to, instead of declaring a New BaseProduct in the Transaction class, to simply make one of the properties of the Transaction class a pointer to a BaseProduct variable?
In VB6, I would accomplish this by making a BaseProduct(10) array, and then giving each Transaction an ID number referring to an entry in that array. But in VB 2008, using class structure, this is impossible. I can't define the BaseProduct(10) array outside of a class in a namespace, and if I define it in the actual application's form, then the class loses modularity since it relies on the application that's using it.
I am trying to communicate with an external device and i am trying to send a byte array to the external device via sockets but i am always getting a response the message size is too small so i am not sure what i have done wrong. Between the data type there should be no alignment present and all numbers are represented in little endian format. The char array is not null terminated as mentioned in the protocol specifications.
I have to send data based on a struct that embeds 2 other struct. So here's my vb.net code for the struct used to convert to byte array and the sending part.
Public Structure MESSAGETYPE_OIP_Login
Dim Header() As COMMANDHEADER
Dim UserName() As PSTRING
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HTML
<input type="text" id="id1" name="id1" value="myvalue" title="id1" >
How would I get "myvalue"? I've tried using .InnerText/.InnerHTML, but neither work. Instead of "myvalue" it will return "".
Well I have Flash control and I need to delete it with code.I need to know how to make a new flash control. I know Dim ShoclwaveFlash As New ????. I don't know what to put for ????. I'm using the COM Component for Flash in VB 2008.
View 2 RepliesI'm a beginner, and this is an assignment - I have a form with a menu strip and a listview.I also have a separate class that handles everything.When there is data in the listview, and one row is selected, I need to be able to remove that row when delete is clicked in the menu strip.The code I need to use for the delete is below. Currently it's just sitting in the class, and I don't know how to use it.
Public Sub Delete(ByVal item As employee)
If IndexOf(item) >= 0 Then '"IndexOf" looks for item, returns -1 for not found
DeleteAt(IndexOf(item))
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I am sucessfully getting pictures and displaying them but having problems deleting them heres everything I am trying to do: frmCapture:Takes pictures from the webcam and stores them in a location with random filenames..User then ends this process by a button which disposes this form and displays the next one below [code]This form then gets all the files in that directory and uses back and forward buttons going through the images in a picture box.When finished the user then hits a close button that displays another form and disposes that one (this new form waits 5 seconds then tries to delete all files in that directory however its getting an access denied because the file is still in use.[code]
View 4 Repliesi am using vb.net 2008 and sql server 2005 i have read that always use parameteres for adding / deleted but this is very odd.if i delete a set of records using parameters it doesnt delete.i have used
mCmd = "DELETE From TaxStructure WHERE EffDate = @mDt"
cmd = New SqlCommand(mCmd, MyConConnection)
cmd.Parameters.AddWithValue("@mDt", dtPkEffDate.Value.Date)
cmd.ExecuteNonQuery()
MyConConnection.Close()
this does not delete the data as it seems the date is not found but if i use this :
mCmd = "DELETE From TaxStructure WHERE EffDate = '" & dtPkEffDate.Value.Date & "'"
cmd = New SqlCommand(mCmd, MyConConnection)
'cmd.Parameters.AddWithValue("@mDt", dtPkEffDate.Value.Date)
cmd.ExecuteNonQuery()
MyConConnection.Close()
this works......now what am i doing wrong in the parameters.its the same sometimes for selecting the records too...somewhere it works somewhere it doesnt.
know this is going to sound weird, but I want to show this program I'm making to a friend of mine and I don't want her to keep the program.... So, is there any way to make the program "commit suicide" during/after closure
View 3 RepliesI'm trying to delete a record from my access db using code and am getting an error message.My code is as follows:
Dim mDataPath As String = Application.StartupPath
Dim strSelectedItem As String = DataGridView1.Rows(DataGridView1.CurrentRow.Index).Cells(0).Value
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I'm experiencing a problem with the following c-structure:
typedef struct tagTEXTUREPROP
{
DWORD dwSize;
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The Marshal.SizeOf obviously calculates a size of 76 and it works with the DLL function, but it leaves me with some bad feelings.
I'm trying to read an innerHTML string from an element on a webpage. I've loaded the page using the webbrowser browser class.
Here's the code in full
Imports System.Net
Imports System.IO
Imports System.Diagnostics
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When I click button 1 for the first time I recieve the error "Object reference not set to an instance of an object." but when I click it the second time it returns the elements text perfectly.
I thought the wb.document element might not be instantiated so I've tried navigating to a page (google's homepage) before loading the page I want put with no success.
I also thought that maybe it wasn't giving the page time to load so I added the sub to deal with the documentCompleted event but this also returns nothing (though wb.document.url is set correctly to the webpage I want)
I was looking at a previous post and the poster was talking about htmlelement, so what I want to know is if you can use this function to find a html element on a wb page.I'm trying to make a program that will find the img src url for an image on a website and then return that url to the imagelocation of a picturebox.
View 5 RepliesIm having trouble getting the number of rows from a grid control.I have a function called UpdateDevicesGridStatus
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Been searching all forums for an answer to this problems for several days now without success.I am trying to Cast/Bind to an HTML Element in an open Internet Explorer 8.0 browser.I need to Cast/Bind to a Frame with a name of "mainFrame".I can get to the Frameset ok but cannot get any further.[code]Can anybody shed any light on how to get HTMLDOC to bind the name part "mainFrame"
View 3 RepliesI want to take a field from a table and place the content into a collection. The collection is not supposed to have any duplicates. This is my code sofar... It does not work. The NOT statement is supposed to only enter values into the collection, when the collection does not allready contain the matching string.
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