Auto-updating Changes For Params Inside Function Possible?
Feb 24, 2012
I am currently facing an heavy struggle with architecturing my VB.Net app.To simplify, i'm using entries from XAML comboboxs, which all trigger OnChange the same routine which manages which Function(s) to use depending on which combobox triggered.The problem i'm facing is for example i have Function(ByVal A As String, ByVal B As Integer, ByVal C as Double, etc...), and it works if the routine calls explicitly for this function's result. But then if another combobox makes for example the variable B to change, then i have to add another "If sender= Then" check for this combobox and recall expicitly the function above (since B is one of its parameters)..In the end, my routine is loooooong like 24 checks with at least 4x duplicates of same functions..is there a simple way to make a Function autoexecute when one of its parameters change without having to be called explicitly by another routine ? (Like Excel formulas do when one of its references change)
I am using vb to make a hospital system which works with a access database. i am having an issue with the updating function to the database, this time round instead of hard codding the connection i used the connection/data source wizard, in microsoft visual studio 2008 and there fore most of the code has been auto generated for me, which includes the insert, delete and update funtions from what i can find and what i have read vb is ment to also auto generate this which it is not. the funny thing is that i can close the program down and reload it (as long as i haven't opened the database) and my changes are still there but if i go and open the database and it hasn't changed. also i can change the database through the use of the Dataset connections in the datasource tab but not int he program the code ive found and believe that is meant to update the database
This is running off a couple of buttons i also have a update query but have know way of accessing it
How can I call a function from inside another function and suspend the calling function until the called function is finished? I hope I can get some replies because I don't know how to ask the question and make sense:).
Anyway what I am trying to do in steps:
1. The user clicks button1 which triggers the click event. 2. From the click event I call a function 3. I then pop-up a form, that has instructions for the user to read. 4. After the user has read the form he will click the "Done" button and return to the calling function.
The problem is the the calling function continues to execute. I want to stop execution of the calling function until the users clicks the "Done" button on the instruction pop=up. I know I can use a msgbox but the instructions can be lengthly and does not look good in a msgbox.
I have tried the Call method with return in the "Done" button click but I can make that work. I also tried a goto statement but I can get that to work either. In the call statement I said call frmInstruction.show() and it got there but as I said the calling function continued to execute.
Now I have my application and an installer project, which can install my application. how to make my application auto-update (from my web server) like a smart client. I've looked into ClickOnce, but it does not appear to be suitable as I cannot do any custom installation steps. My application needs to create folders and copy other files from the CD to the hard drive, which I don't believe ClickOnce supports. On the other hand, the Windows Installer does not natively support any sort of auto-updating. So what do I do?
I have read that it is possible to combine both technologies, but all my research into this has turned up nothing of use.
I've looked into the Updater Application Block (Version 2.0), but I'm not sure if this is what I'm looking for? I'm using Visual Basic 2005 and I'm not sure if the Updater Application Block supports .NET v2.0. In fact, when I tried to install the Enterprise Library, it said I need .NET v1.1??? Even if this is a possible path, I'm really quite lost when reading through the documentation as nothing seems to point towards practical examples, especially in Visual Basic.
I've also had a look at the System.Deployment.ApplicationDeployment class, but it seems as though this only works with ClickOnce applications. However, since I can't seems to use ClickOnce in my situation, this does not seem like a viable option. Is it possible to use System.Deployment.ApplicationDeployment outside of a ClickOnce application?
I'm really quite lost as to how other people produce custom installing applications that have auto-updating features. Virtually every modern piece of software does it, but I cannot seem to find anything on the web that points me in the right direction of how to achieve this with Visual Basic 2005.
I'm looking for a way for copying a VS application files via HTTP and TCP? I mean I have published my application and now I am trying to find something like ClickOnce application that copies my updated files from my website to the clients' centers through HTTP and then locally to end users through FTP. I need to a source code or something like that.
I arrive from years with Oracle plsql. Now I'm trying vb.net I created a function that return a char value, so written:
[Code]...
The question: I will create a function get_type(...) in vb.net that calls the tsql function written above... how can I call the tsql function [abc].[GET_PERSON_TYPE] in vb.net function get_type(...) function?
I have a windows desktop application that I'm converting part of it to a windows service application. The win service pulls data out of one database and passes it to a central location via web services. I've got the windows service working, however I'm unsure how to add auto update abilities to it.
The windows service itself is basically an empty shell that fires off the data pulling, which resides in a dll that installs with the service. My original idea was to have the windows service do a version check and if needed download the new dll and overwrite the old one. The problem is the copy can't happen if the service is running (or paused). Herein lies the problem. If I have the service stop itself then of course it's stopped so no more code execution. The other problem would be how to restart it.
I'm trying to create something that is hands/worry free for my clients that way when I change/update the data pulling win service application they don't have to mess with it. I'm up to 300 clients now and I really need a solution that doesn't involve any user interaction.
EDIT: After more digging it's looking like this is a near impossible task. Another option would be to have a second service, one that just looks for updates and that second service can stop the first, update it, then restart it.
When i click on the link button, it does not show the data from DB... if the part i am updating from DB is outside the tabbed panel then it works fine...
<script type="text/javascript"> var hh; var left;[code]............
i am trying to write a script that autoclicks, but only does so inside a certain game...example....someone clicks "start" in my program, then it begins clicking every 3 seconds inside the video game, even if the game is minimized etc.how do i do this?i've already got the auto clicker all figured out....just need to figure out how to apply the event to a certain program or process...
I am having trouble binding data to data repeater when I use ISyncResult.This is what I am doing.There is a button inside a Update Panel that gets the input from the user and calls a function that returns a dataset that I then bind to data repeater which is also inside a update panel.What I did is that I made a delegate to this function, now I am calling this function like this
[Code]...
I am having hard time figuring out why the data repeater is showing no data.While debugging this I see that the dataset is getting the data and is passing the the "ds" but nothing is showing up on my page even though the data is being passed to controls inside data repeater while I am debugging.
been trying to find examples of how to go about auto sizing the controls i have within a grid control if the users screen is larger than the default size.Currently i am unable to resize the controls when i enlarge the form. Is there any code currently that can find all controls inside the grid and resize them on the fly when the form is resized?My current code is:
I am trying to create a little script program in VBScript and I want to call some of the functions in wtsapi32.dll, can anyone point me to some sample code on how to do this? I am assuming that the values like: WTS_EVENT_ALL, are just plain simple literal strings, and not pointer to a variable inside of wtsapi32.dll.
I might be alone in this; but I was always under the impression that in .NET when you called a function you had to pass in values in the same order as the method.[code]I've ever seen just calls the method with the params in the correct order - is the named convention an old left-over from VB? If I were to use the := syntax in all my method calls, would people laugh during my next code review?
I have a old vb6 application I maintain,that has the settings in a separate xml file.
But now I have to move those "inside" (to remove the xml, don't ask why :) ).
What would be best place/"paradigm" for such
settings to be handled in vb6 Like database connections, general parameters. Also to be easy to change it, u know what I mean. I just searched on the web but until now could not find it. Of course it is easy to hard code the ones for the moment
VB.NET 2008. How could I make a new line inside the ToString() Function that VB already have. How to do like a .WriteLine() but inside the ToString() function. In my case, this inside of a class of course. I don't know if you get me. All I want to do is to show a fraction in the normal way not using the slash(/). Showing the numerator on top of a line, and below it the denominator. This inside the VB pre-made ToString() function.
This is what I've tried; Public Overrides Function ToString() As String Return Me.numerator & "/" & Me.denominator End Function Output example: 2/3 But this is not what I want.
I'm trying to make an application that calls a function to create a timer, but I cant use WithEvents or Private inside of a function or sub, Is there any way to do this?
Public Module Exercise Private Function GetFullName$(MI As String, _ LastName As String, _ FirstName As String)
[code]....
I want to know why the name of a sub routine is being used inside a Function Main as i have highlighted in bold letter.Canīt it stay outside the Function Main() just close to the Sub Program.? Example: -
I'm having an issue with an application suite I'm developing. The bulk of the work is done in a backend dll that relies heavily on delegate subs in the different apps.
The problem I'm having is, I have a lot of these delegates typed to require a parameter. (eg, Public Delegate Sub DelTypeA(ByRef param As Object)). The individual methods will have a DelTypeA as one of their params, and I will pass it AddressOf functionA that has that signature.
This works fine for strong typing as long as the signature is something incorrect (2 params, a byval instead of a byref). But if functionA has NO params, the delegate is still created!
This works fine if I genuinely don't need to use a param, eg if the sub is simpler and I would have ignored the param anyway. But I want the strong typing to work here.
EDIT: I should add that invoking the delegate also works fine for simpler subs; the param is just not passed because it had nowhere to go. But I want to force all the subs to match the signature and do their own ignoring of the param
Is there any issues with this? If I'm kicking off half a dozen threads over and over? ie: I'm not using a system where the parameters will get mixed up/corrupted?
I've looked around, and if this is OK/safe to use, this seems the easiest way to get values/params into a thread.
I was going over the Screen Saver Tutorial for VB Express 2005 and i Noticed How the Screen Saver app excepts params at startup... and depending on the startup param it will display the screen saver or the options form... lets say that i want to start up a screen saver from my program, how would i send it to the screen saver to display the options form the param is "/p" or something.
I created a access table with three fields, CustomerID, FirstName, LastNameI set the CustomerID field to the primary key and the type of AutonumberIn my VB app I dragged the three fields over to my form.I clicked on the plus sign at the top and it displayed -1 in the customer field, I entered a First Name and a Last Name and press the save button. I repeated the process 2 more times and the CustomerID field went from -2 to -3.I looked at my table in acces and all three records showed 1, 2 & 3 as it should. When I exited the form and then open the form again it shows record numbers 1, 2 & 3 as it should.How come it takes exiting the form and then back in to see the correct CustomerID's ?
I need to get a value from an API I made with ASHX and normally it is called from javascript but I need to call it right in ASP.NET I figured this shouldn't be a problem but I'm not sure the syntax.
I'm trying to validate a form to be filled out by the users, and when the required section isn't filled, I increment an
ErrorCount += 1
variable to show that error(s) have occurred inside the program, I then also set an
ErrorArray()
to whatever the corresponding field number is, now I have 0-12 (13 fields). What I have also done is titled the labels that are associated with all of these fields to correspond with the ErrorArray() value that might be set, such as.
PatLabel0 PatLabel1 etc.
What I am trying to do is loop through the array contents, depending on which ErrorArray() values have been set, to go and set the corresponding fontcolor property of that label to red, to show that these now need to be filled out. This is what I have, but Visual Studio doesn't allow me to use the iteration through the loop as a reference to changing properties. Can anyone point me in the right direction to trying to figure this out, or at least tell me what else I could do. Just seems doing 20 if....then....else.... statements with 2 - 3 lines in each of them is redundant when 1 function line could do the same job. This is what I have.
for i = 0 to UBound(ErrorArray(12)) if(ErrorArray(i) = "*")then PatLabel(i).forecolor = color.red
[code]....
that is basically all im looking for initially, but I can't do it.
I have written a function inside a class file which I added to my project in VB 2010 Express. Unfortunately, when trying to use this function in the main project, it cannot be seen by the compiler. The function is public. You can probably see from this that query that I don't know much about OO programming (I am assuming that the problem stems from something to do with this).
I have as sub that is triggered from the file system watcher when the new file is created in spec. directory.I need to call some function to do something with that file. [code]
