Back With A Small Project For Internal Use?
Jun 3, 2011
Its been a very long time since I don't show up here.Now I am back with a small project for internal use, but I need a little help.I want to make a program that allows me to change file attributes, like 'hidden', 'read-only' and 'system'.It seems pretty simple, but I want that multiple files can be modified at once. For this I would need a list that shows the files into the interface. There is what I can't get.
I first thought on a listbox, but there is also a listview which seems much more complete, but I just don't know how to use it. I was wondering if I could make something like: I open a folder, all the items inside that folder would be listed inside the listview.I learned a bit, but not enough. I've set the listview to 'details' mode, so I can actually list items. Also, I've added three collums: one for file name, other for file size and another for file attributes. I just need to learn now how they works.
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Sep 24, 2009
My Visual Studio 2008 solution contains both C# and VB.NET projects. From a VB.NET project, how can I access a C# property with its access modifier set to "internal"?
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May 3, 2009
Is it possible to have an internal XML dataset within a VB 08 program I ask because we at present have the program load an external XML on startup, but i would prefer this to be internal withing the program to stop other editing the XML file.
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Aug 26, 2010
i have make 1 form in vb.net which has 1 button.i have 1 circuit which can glow a led or bulb.i want that whenever i click on that button it can pass signal to the circuit & glow the led.how can i do this.reply.....
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Jan 17, 2010
I'm working under vb 2008 french version i'll try to translate my problem, hope that u get it right well yesterday i started creating a simple calculator (application windows forms) i did the half work then i save all (Ctrl+Maj+S) . Today i opened the saved file ,i get the Form1.vb page and the Form1.designer, but i cant find the Form1.vb[design] .
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Jan 26, 2011
i have heard that there must be a button on your project for taking back up of your whole project. I want to know something that what sort of backup it will take? and other thing is that how to make that button i mean that how to take backup simply?
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Jan 13, 2012
I'm basically trying to do a small report card project. I only need to pull 5 Students with each student having 5 Test Scores a piece. The full Code of what I have for the submit button is below. I have actually 3 questions.
1. I always seem to have trouble with them unless I initialize them when I dim them. Is there a better way than below
2. The below code works really well for Student 1 and all 5 test scores. Rather than do that code 5 times though, what is the best way for me to basically state that IF dblStudent1(intMax) = 4 Then Change dblStudent1(intMax) to dblStudent2(intMax) etc.
3. Would this be better suited towards a multidimensional array ?
Private Sub btnEnterGrades_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnterGrades.Click
Dim strStudentNames() As String = {" ", " ", " ", " ", " "} ' Holds the 5 Students Names
Dim intMax As Integer = (4) ' Place Holder for Student Number
[CODE]...
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Mar 2, 2009
Back Up Files And Folder Project?
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Oct 6, 2011
visual studio 2008 express is it possible to create the backup of my entire project automatically is there any tool for that
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Feb 13, 2010
How to Roll Back project in Visual Studio
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Oct 3, 2009
I reopened my project to edit it but it is only showing the code not the design I cant get it back how do I do it?
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Aug 27, 2010
I need to make a small programm for ticketing on a parking for a small hotel.So i have 2 Printers pariking In (for delivery of the tickets) and 2 Readers PArking Out.Both Printers and REaders are working Serial.So i need to poll the serial ports of the printers and readers every second.The data is stored on a SQL database so i need to read and write in the database.Can i do this with 1 PC and 1 programm or 1 PC and 4 programms that are runnning at the same time ?
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Feb 1, 2010
On form 1 , i have a number of buttons that open up different websites.What i want to do is when i click a button on form 1 , i want forum 2 to show ( Form2.show() ) , Form 2 will have a list (Buttons) of internet browsers.
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Jan 25, 2012
I have written a small project that saves data in a data set, this part works fine, but I have some errors with the code I have written for importing excel data to the datagridview and exporting data from the data grid view.
This is a test project for me to learn how to do this stuff, so I will post the code for the entire project so you can see what I have done from start to finish.
[Code]...
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Oct 6, 2011
About 3 years ago i came across a vb project for a photo album, it was on online tutorial and I followed it and after some custom tweaking I found it was quite usefull. Unfortuatly the original sourcecode has long since vanished.The project was fairly easy to follow and I remember the author had a photo image of his sailing boat and a yellow labrador (just trying to jog some memories here) :).
Anyway; I have searched high and low for it but can not find it. I'm pretty sure it was on a msdn or some other microsoft forum and was to do with VB 2005 or VB 2008 edition of Visual studio.
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Aug 25, 2010
I am using an image button and on click of it i want to go to visited page.Now i am using - Response.Redirect(Request.UrlReferrer.ToString()),It is going to previous page, but when i am in a page of some user details where the link is looks like - users.aspx?userid=25 and i visit some other page and click back(image button) i want to see the same userdetail page. How to track that.
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Jul 23, 2009
I have a search page with a couple of pulldowns. Dependig on the values of them I show a grid matching the searched criteria, basically a table with links the user can navigate to. My problem comes when the user wants to navigate back. At the moment I have a "Back" button which simply redirects the user to the initial search page. I think it would be a good improvement to have the values of the pulldowns filled in with the values the user selected, this way when he presses the "Back" button he would not have to restart the whole search process again.
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May 31, 2009
I'm not sure what I did, But I would like to get my toolbox back to normal where I can put it back on auto hide and such.
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May 10, 2012
We have a server application and a client application that communicates with each other using socket.
When the server application sends 2 messages about 16-31 ms apart, the 1st message is received by the client application with little delay (like 16-32 ms after it was sent). But the 2nd message is received by the client application a lot later (like 200 ms later) than when it was sent.
We already disabled Nagle algorithm (set NoDelay = True) in the socket in both the server and client application.
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Jun 17, 2011
We are having problems with sending back to back emails on one of our web sites. The site is built with .net framework 2.0.We can send the first email without any problems on every try. But to send a second email you need to wait about 20-30 minutes.the problem.One thing we tried was changing the smtp email server. We tried a third party smtp server but the same problem persisted. So I think the problem is not with the smtp server but with our .net code.
Imports Microsoft.VisualBasic
Imports System.Net
Imports System.Net.Mail
[code].....
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Feb 20, 2012
In my project, form_double Click and Form_Maximize is not working when i do break point. Its not Button_Click, Form_Load. I want to do like this. "My project design form grid column size is small when form load and want to be large grid column size when the form is maximize."
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Mar 2, 2011
I am creating an application that will be faced with multiple decisions to make and I want to know if it is possible to create around 20 if statements to excute or decide between before excuting?
The application will encounter multiple websites but each website will have the same elements but not neccessary in the same order so I was going to tell the app to loop through the IF statement and if the condition is met to run that sub routine where it starts over and loops through the IF statements until next condition is met.
Is this possible in VB.NET or is 20 or so IF statements to many to use at once?[code]...
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Dec 19, 2010
I have a dBase file named PROBA, with two cells: "VNEV", "KNEV".I would like to see the records back-to-back in a Msgbox.
Imports System.Data
Imports System.Data.Odbc
Public Class FormCount1
Public Sub Recordszm() Handles MyBase.Load
'TODO: This line of code loads data into the 'DataSet1.PROBA' table. You can move, or remove it, as needed.
[Code]...
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Oct 11, 2011
I am starting a application that will need to use a usb or included device camera to capture images. I would like to know if there are any samples or examples on how to connect to the camera and capture images. This will be using vb or c# dotnet 4.0 on vista.
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Dec 20, 2010
Public Class ExtendedDateTimePicker Inherits DateTimePicker
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Jul 21, 2011
My issue involves relationships and cascaded effects between properties, and I'm wondering what best practices are on this.I have a class that contains a list of varying length of numbers. When editing the list, sometimes the user prefer to set a TargetSum, so that the program enforces the list will always add to this sum. I am accomplishing this by programmatically setting the final element in the list such that list sum = TargetSum. For example, if the user chooses to UseTargetSum, then sets TargetSum = 10, then creates a list of length 4, and enters 1, 4, 2 for the first 3 elements, then the final element is programmatically fixed to 3. The user cannot change the final element themselves.
I do this behind the scenes by handling all necessary events, such as a list element value change, list length change, and the UseTargetSum option change. For each event trigger, it recalculates the last element's value.It works but then there was a bug when loading saved data. If a list is loaded by sequentially adding the elements, the handlers modify each entry. Regarding the example, when the first value of 1 is entered, the handlers say "a value was just added, the sum should be 10, there is currently only one element, so it needs to be 10". So the first element gets changed to 10 behind the scenes. When the second element is next added, the handlers say "a value of 4 was just added, but the first element is already 10, so it should be zero." At the end of the load, the final list reads 10,0,0,0 instead of 1,4,2,3.
I know it is possible to rearrange the load procedure such that I get the correct list. For instance, I could avoid enabling the TargetSum event handlers until after all the data is loaded. The list would first be created as 1,4,2,3 and then the handlers would change nothing.
But this experience makes me wonder if I am opening the door for other sneaky side effects. It seems you should be able to load data without worrying too much about an implicit ordering. It also seems unusual to have "cascading" effects between class properties. Is there a more accepted approach?
The other alternative I'm considering is to only enforce TargetSum only inside UI forms. Ie, when you know it's a user making the change, then enforce the TargetSum, but otherwise leave the core class logic alone.That way database loads, etc, are left unaffected. But I guess the downside of not having ubiquitous enforcement is that opens the door of incorrect sums via some unforeseen complication.
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Apr 7, 2012
I'm using Visual Basic .Net 2010 Express.I know, for example, that the Visual Basic ( IEEE 754 ) Internal bit-by-bit Double Format is: Bit 63 = Sign, Bits 62-52 = 11-bit Exponent, and Bits 51-0 = 52-bit Fractional Significand.But, I can't seem to find any documentation on the Internal bit-by-bit Decimal Format.There also don't seem to be any workable mechanisms for accessing the bit structure or copying the bits to another Format for internal processing and returning the result to the Decimal Format.[code]to separate the ULongVariable into bytes for convenient manipulation. A similar reverse process allows moving the manipulated bits back into the Signed Long Variable.But, methods like << and >> are not extendable to Decimals per the Microsoft Documentation ( and I tried them anyway, and confirmed that they don't work ). Nor does there appear to be any way to copy the 128-bit Decimal into two 64-bit Unsigned Long Variables, or vice-versa.
I could, of course, forgo the use of Decimals and define my own MDJDecimal consisting of two ULongs, but that seems a bit of an overkill, and its methods would likely incur significant development time, and would probably also be rather excessively slow and cumbersome.I know I could write a workable routine in Visual C++ .Net using the Unmanaged Native Assembler, but I don't know enough about how to integrate that with Visual Basic .Net code, and I don't want to irrevocably tie what I'm developing to the Intel platform.I might also be able to write it in Managed Visual C++ .Net, but, again, I don't know enough about how to integrate that with Visual Basic .Net.
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Jul 26, 2010
I have some forms that were VS2005 forms the I moved to VS2010. The forms have a tab control and on the tabcontrol are some panel containers. If I add a multi-line textbox toa panel I'm seeing the text offset from the left margin. If I make a form from scratch the margin does not appear.Any idea where this left margin is coming from?Is there a way to set the left internal margin in code?
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Mar 9, 2012
I have several VB6 exe's/dll's that I have created, when I right click on the file and get the properties it says:
File version - 4.2.0.9
Product Version - 4.02.0009
Is it possible to change the File Version? I want this to say 4.2.9.123
I want to change this programmatically, so where is the file would I find these values? Are they at a specific location?
Is this going to cause an issue registering the exe/dll's with COM if I change the internal version?
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May 5, 2010
For reasons that are beyond my control, I have three Projects. Projects A and B reference project C. Project A references project B so that it can open a large form in project B. I now need to open that large form from project C, but VB won't allow me to add a reference from C to B because that would create a circular dependency. I found a way around it, though. I created a Timer in A, and when I opened C from A, I passed in that timer. When the user performs a certain action, I enable the Timer from A, and this causes C to open B for me.
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