In my API class I encountered a lot of times I had to Get/Set low/high order <something> of <something>. For example, get the low order integer from a long. I made a few functions for this: [code] Before I start using these functions permanently, I come to ask if it contains any bugs, especially because of the Unsigned/Signed issue.
View 15 RepliesI'm using Visual Basic 2010I've created a ListBox and a BackgroundWorker using designerI want to change the location of listbox using backgroundworker but I get the error as follows:"InvalidOperationException was Handled by user code:"Cross-thread operation not valid: Control 'ListBox1' accessed from a thread other than the thread it was created on
View 10 RepliesI am looking for an advice how to do a drag and drop copying an object anywhere on the form and also move an object around and place it where the user wants. Is that possible? Kind of something what we have in the designer of Visual Studio, we can drag and drop a label or a textbox down on the form.
View 7 Repliesa user will enter a number, n, which ranges from 1 to 30. they will also enter a "P" or an "S" (sum or product). depending on which was selected, it will calculate the sum or product of the numbers from 1 to n.i'm having a conversion error on line 5 stating "Conversion from string "S" to type 'Double' is not valid." [code]
View 2 RepliesI'm creating a program in VB.net that does the following:At a high level I receive a file in email, put the attachment in a monitored folder, import the text file to excel, format the excel, and then email the excel file to a list of recipients.
Here is my plan:
Completed: Outlook VBA to monitor all incoming email for specific message. Once message is received drop attached .txt file in a specific network folder.
Completed: (VB.net) Monitor folder, when text file is added begin processing
Not Complete: (VB.net) Import text file to Excel
Not Complete: (VB.net) Format Excel Text file.(add in a row of data,format column headers with color/size, add some blank columns, add data validation to some of the blank columns that allow drop down selections)
Completed: (VB.net) Save file.
Completed: (VB.net) Send file to list of recipients.
Obviously the items above that are not complete are the bulk of the work, but I wanted to get some advice on what some of you think would be the best way to approach something like this. The import and formatting of the file are causing me some problems because I just can't decide what would be the most efficient way to do this.
The way stated above. Import to excel -> format Having a template excel that contains all of the formatting already done for me and attempting to transition the data to this document (no clue if/how I can do this). Is it even feasible? Have the template already created and then import the text file to a new excel file, then transition that data to the excel template?
Something I thought about, in terms of formatting the document, was to record a macro of me doing all of the formatting that I'm going to need and then attempt to convert that macro into my vb.net code, but I'm not sure if that will work. I will need to verify that the text file comes in the EXACT format every time correct?
I need help converting this into PHP:
Public Function Encrypt(ByVal text As String) As String
Dim charSet1 As String, charSet2 As String, i As Long
Dim pos As Long, encryptedChar, encryptedText
charSet1 = " ?!@#$%^&*
[Code]...
I'm making a text to hash thing like presented above but in PHP for my website.. The code above is home-made so its nothing like MD5 or SHA1. But if you guys do know a way to encrypt and decrypt MD5 in Visual basic 2008 please show me! (this must also work for PHP).
i need to convert this code to vb.net
event EventHandler<PageEventArgs> IPageableItemContainer.TotalRowCountAvailable
{
add { base.Events.AddHandler(GridView.EventTotalRowCountAvailable, value); }
remove { base.Events.RemoveHandler(GridView.EventTotalRowCountAvailable, value); }
}
one of the online converters gave me this:
Private Custom Event TotalRowCountAvailable As EventHandler(Of PageEventArgs) Implements IPageableItemContainer.TotalRowCountAvailable
AddHandler(ByVal value As EventHandler(Of PageEventArgs))
[code].....
But intellisense complains that 'RaiseEvent' definition missing for event TotalRowCountAvailable
whether is there any equivalent for "SizeOf" of VC++ in VB.NET.
Basically I was trying to convert the following code to VB.NET:
char sName[256];int32_t sizeName=sizeof(sName);
We have a large vb applicatin in vb 2003, now I am asked to convert it to vb 2008. How should I start it? Open the program using 2008 and recompile?
View 3 RepliesI created a program using VB 2008 to aid me on design work-related calculations that uses Access mdb file for displaying info. and calculations. But I experienced an alarming problem when I converted it to VB 2010 The program execution works in VB 2010 but it can't display the data from an mdb database file.
To simplify and simulate the problem, I created a simple identical program in VB 2008 and VB 2010 showing a window that displays a data extracted from an mdb database file. Both programs run as intended in each environment. When I open the VB 2008 created program under VB 2010, VB 2010 converts it and when I run the program, it doesn't display the data at all.
My issue is when I read from an existing executable and convert it to string and back to executable windows says it is not a recognized 32 bit or 64 bit application? The code below is real code I have rewritten many times but to no avail. If I leave out the part where I convert the bytes to string and just copy the binary and create a new exe with the binary the program works. But the whole concept of string converting back to valid binary has me stumped? This is Visual Basic 2008 code:
Imports System.IO
Imports System.Text
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim tempPath = System.IO.Path.GetTempPath
[code]....
Currently, I have 4 textboxes displaying hh , mm, ss and ms.I am required to convert only the Seconds, Minutes, and Hours and display it into another textbox (see attached doc for diagram).I've got a brief idea that for the hours, i'm required to multiply by 3600, and as for the minutes, multiply by 60. Am i correct? Please correct me if i'm wrong. But as for the actual coding of conversion and how to display it into another textbox, i'm not sure how to do so.
View 9 RepliesI need some guidance again =)Its regarding the conversion of voltage level to equivalent LUX.As mentioned in prev. few threads, if you have seen it, basically, my circuit board is connected to a solar panel and is connected to a power supply (those laboratory DC power supply used in schools).The whole thing is connected to the computer via a RS232 Serial cable port. Thru the serial cable port, a voltage level is sensed from the Solar Panel and is displayed on the "Voltage Level in Volts(V)" See attach image
Currently, i need guidance on how to convert the Voltage Level into equivalent LUX.I googled and found from this website >> [URL]../324003.page and it states that Lux = 1333 * Vo , so does it mean that i just type:TextBoxLux.text = TextBoxVoltage.Text * 1333 I'm not sure if this is the correct method to convert voltage level from the solar panel into equivalent LUX. If this method is wrong, please correct me.
[Defination of LUX: The lux (symbol: lx) is the SI unit of illuminance and luminous emittance. It is used in photometry as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface]
Okay so I have decided to upgrade my game from vb5 to vb2008 express edition. When I opened it I was told it needed to be converted so I said ok. However, there are some things in the language syntax that have changed.Obviously. Well here is one of them:
[Code]...
Setting controls to objects allowed me to cut down on typing but it seems you are not allowed to reference things without the "full path". I understand that you now have to set the full path of the object but doesn't setting something to an object already do that? Do I have to just delete the object references on the top and instead of using objCmbGraveU2 I now need to replace it with frmMain.cmbGraveU2?
I have a VBnet program that works fine and I'm hellbent on getting it to run under Linux eventually (looks like mono is the way to go sometime soon). But, for now, I'm looking at some of these code converters, online and otherwise and have some questions.
I tried a single procedure of code with the online converter and it threw quite a few errors relating to the procedure lines themselves (the opening Private sub etc, etc,)Something about C# and handles clauses -- can't remember.
So, I suppose the online converter just wants to see the code itself? As in, what lies between the Private sub blah -- CODE -- end sub?Now, what about something I saw this morning, "Sharpdevelop" that says it can convert entire PROJECTS to C#? (Also saw a 200.00 software package as well).
Is that the way to go? Will it do every bit of the project's code start to finish? You just load the project folder or the project file I guess?But then I see Sharpdevelop doesn't compile -- so you convert with it and then open the converted file with Visual studio C#.net?
I guess Microsoft will never have this conversion capability in visual studio?
VS 2008 Conversion from string to decimal problem on XP and 7
View 1 RepliesI have downloaded a quick day view calendar control for my app. While it meets my needs I am having trouble converting the C# code to create a new appointment. Is anyone here good at code conversion?
The control is here:(url)
I have downloaded a quick day view calendar control for my app. While it meets my needs I am having trouble converting the C# code to create a new appointment. Is anyone here good at code conversion?
View 1 RepliesI get this error:
"Conversion from string "7F676981" to type 'Long' is not valid."
When using this
Reader.Position = &HD044
TextBox2.Text = Reader.ReadHexString(4)
TextBox2.Text = CLng(TextBox2.Text)
i've done a search on this error n found no match so i decided to create a new thread.this part of the program is suppose to get the date interval of dd(due date) and dr(date return) n charge the members accordingly.the program opens normally but when i go thru the records i have in my database, conversion from string "" to 'date' is not valid pops up.[code]
View 8 RepliesI have a problem converting decimal number from label's string to decimal... (for example Label1.Text = "0.5"). It works fine on Vista, where I made my application, but it doesn't work on XP and 7. It converts from 0.5 to 5
VB
Dim dec1 As Decimal
dec1 = CDec(word1) * CDec(u1.Text)
'word1' is an integer. For example, if word1 is 100, on XP I get result 500.
So I'm trying to create a program in Visual Basic for my uni coursework and I'm kinda stumped a tad here. I've created most of it, I just need to write the files to a txt file (in the same folder as the program [bin/debug]).
I'm creating a some kind of employee reference form. Fill in your details, figures out gross pay, net pay and all the taxes an employer has to deal with. When you press Save, the details should all write to a file and I should be able to select from multiple ID's in my combobox for the employee ID reference. If I try to save a file with the same ID number I should get thrown an error. every ID should be saved under the Employee ID box.
Here's my code for the save button:
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Dim s As employee = New employee
[Code].....
my update script in VB.NET, i'm making some stuff, and I want, while all funcs are executed, a progressbar to be displayed? How to do that? Here is my execution sub:
[Code]...
I'm new in VB.net but I'm trying to make application (planning-game). The game is about showing students the planning 'complexity' of a operation room in a hospital. I created a listbox which randomly shows 5 operations. But now I would like a function which makes it possible to add a selected operation to a timetable. The timetable has blocks of 30 mins (example 08:00 - 08:30, 08:30 - 09:00 etc..). This because 1 type operation takes 1 hours and 1 takes 1:30 hours. Now I have given the operations a value by using a label. [code]
View 1 RepliesI have an idea about improving the assigning operations of VB.NET (maybe other .NET languages too.) It is similar with "With ... End With" block:
[Code]...
So we don't type "Some Text" every time. Do you think does this idea work? Maybe in the future we can see something like that?
Ime1 = ListView1.SelectedItems(0).Text
ListView2.Items.Add(Ime1)
If MkCal1 < 0 Then
ListView2.Items(0).SubItems.Add("Nepoznato")
Else
[Code]...
The problem is when I click the next time to button, listview2 add only first rows from listview1
I have an application in which I am running a separate thread.
Dim thread As New System.Threading.Thread(AddressOf Main)
thread.Start()
However, the thread makes reference to an textbox named Output, and it generates this error upon execution:
System.InvalidOperationException was unhandled
Message="Cross-thread operation not valid: Control 'Output' accessed from a thread other than the thread it was created on."
Source="System.Windows.Forms"
(message shortened for space)
How can I make the operations run on another thread, but still use the Output object? I cannot call a subroutine to do that for me, as it generates the exact same error.
The method called is AppendText, by the way.
I have 2 child nodes under a particular node. I want to do operations on the second child node. The code goes like:
Dim pChain As XmlNodeList = pChainDoc.ChildNodes
Dim processName As String = ""
For Each pNode As XmlNode In pChain
processName = pNode.SelectSingleNode("//Name").InnerText
[Code]...
The following commands I used them in VB6 for database operations MsAccess which are, kindly DataBaseDataSet corresponding commands in VB10?
- Data1.Recordset.FindFirst query
- Data1.Recordset.NoMatch
- Data1.Recordset.MoveLast
- Data1.Recordset.AddNew
- Data1.Recordset.Edit
- Data1.Recordset.Delete
- Data1.Recordset.Fields("nome campo") = dato
- Data1.Recordset.Update
I have a few syncing routines that I'd like to use for FTP uploads. However they all use the functions in the IO namespace, and I was wondering whether I could use it to access distant files stored on an FTP server.
View 1 Replies