.net - Auto Update Of Values In UI WPF Form?
May 6, 2012
I have a class as follows:
Public Class BillAmounts
Implements INotifyPropertyChanged
Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged
[Code]...
However, the issue is that TOtalAMount is getting updated automatically but FinalPrice is not getting updated. Any reasons/mistakes I have done. I have tried it a lot in few ways but could not get that working. What i did not understand is that Total amount is getting updated but Final price isn't.
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Mar 26, 2012
I'm creating part of a program which calculates vacation hours multiplied by accrual rate. As of right now all parts of the form are functioning and saving/retrieving data from a csv text file. My problem is that I'd like to bring the process out of a button.click event and into Form_Load. Currently when I click a listview item (lvwData.SelectedItems) it populates a textbox (txtAvail), then recalculates the textbox value based off my formula (hours) and updates the listview's 4th column item. To update each column daily, I currently have to click each row, then my button, then move onto the next item. I'm looking for a way to grab the 4th column, recalculate it and update the listview without having to select each row.
[Code]...
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Dec 23, 2010
i am currently making a project which is to make a cinema screen booking system. My main problem is that although i have most of what is working i need to find a formula to give the full result (overall price) in a label. My other problem is the fact that when i interact with my form certain things dont auto refresh when i change certain values e.g i change number of seats but it doesn't auto refresh the price or anything OR i click one discount then another but nothing changes and it keeps the old value.
Okay in my menu i have a CombBox (ComboBoxScreen) for choosing the film and there are 3 films to choose from in the drop menu each with their own price. I also have a Textbox (NumberSeats) for inputting a number of seats you want to book for chosen film. And lastly there are 3 radio buttons each with different discounts. e.g No discount, 10% off and 25% off. A formula to work out the overall price uses all three functions/tools above. [Code]
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Nov 30, 2009
How can I update and get values in a Windows Forms application while moving one form to other form (like cookies)?
I need to update the values to some variable and again I am going to refer stored values and need to do some calculations.
I have used cookies in ASP.NET but I am not able to find out the same concept in .NET Windows Forms (C#).
How can these issues be resolves?
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Sep 17, 2011
I want to take the values from textboxes on a windows form and then update the values in the sql server database...I want to update only those fields for which a value has been entered by the user and leave the database fields as it is (no change or updation) for which the textboxes are left empty by the user.....I opted for sql command and then i couldn't find out How can I generate the query dynamically for such a situation??? Like I intialize the string by str= " Update Bookings set " and then how i can alter it by considering the textbox values that have been changed....I couldn't find the way...I need shortest and optimized code for this situation....
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Sep 16, 2011
I want to take the values from textboxes on a windows form and then update the values in the sql server database...I want to update only those fields for which a value has been entered by the user and leave the fields for which the textboxes are left empty by the user.....How can I generate the query dynamically for such a situation???
Edit:
I haven't yet coded for the update option...Here is my insertion code and i wanted to implement the update feature the same way just couldn't figure out how i can generate the query dynamically....It's a Booking System application
[Code]....
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Apr 15, 2012
I am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
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Sep 28, 2009
i have been working on an app and now have got to the point i want to let people test it i know how to use the click once auto-update but what i want to do is display the auto-update progress with a form that shows :
ProgressBar - Label displaying % - label displaying Current Process
label displaying Current Process EG Downloading file - copying file to directory stuff like that how would i go about setting this sort of thing up
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Jun 4, 2010
how i can add a update program in my application so it can be automatically updatted via the internet and can notify users an update is available. i wouls also prefer an auto update application.
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Dec 2, 2011
Is there a way to autosave a record for example:
If I select an item from my combo box on the form I want a onChange then save event?
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Jan 20, 2011
I'm about to roll out a large application to many workstations throughout the company and I've never really had the need to "auto-update" an application until now. Ideally, I'd like a "one time install" and then updates are applied without user intervention/IS involvement. (user intervention would be ok as long as it wont require a logoff or admin escalation)
[Code]...
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Apr 20, 2012
I have always made a setup file with "instal creator" which have made a nice one file of my program and it have been easy to share. This time I need a chance to update my application. I read somewhere that having website is necessary or its much easier to do that way, is it true? I have worked before with ucoz/unet so I think I could use it.
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Oct 1, 2010
i want to know how to put an auto update for my URL counter
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Oct 24, 2009
I may be deploying my app (its a database software for videos) to 4 - 5 computers. I want to add some new features but have the software update automatically and silently. Due to security holes or issues with bugs, I don't want to give the clients the choice to update. I just want it to check for an update and if one is available, it can SAY that its updating on a label but that's about it and it automatically updates without confusing the user or wasting any more time than it should.
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Jun 3, 2011
I have a stand alone application "test.exe" on a Windows 7 operating system.I have an application "test.exe" made in Visual basic 8.0.I have an "Auto Update" function . Call this function from "test.exe". In the first line in "test.exe".This function does the following:
1. This checks whether the current version is older than the version on specific site, if so:
1a. Removed all *. old
1b. Rename test.exe to test.old
1c. dowload new test.exe
I'm afraid I get an error when I rename "test.exe" to "test.old" because "test.exe" is now active.How can I prevent this or what else should I do?
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Jul 11, 2010
I'm currently writing an installer for my application (don't ask me why I don't use ClickOnce or other types of installers...).I simply create a folder in C:Program Files and I download my apps' AutoUpdater into the folder and run itFrom there, the AutoUpdater should download the latest files from my server. However, when I check the directory where the files should have been downloaded, I can only see the AutoUpdater
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Jan 2, 2011
I have a datagridview with data from a mysql database, i want to know if is possible to autorefresh datagrid when mysql database is update.
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Apr 15, 2009
I am writing a program which I need to auto-update itself from then internet, must be internet not intranet. My first thoughts were to use a FTP server and do it using that however I have a website and unlimited of pratically everything. My question is. Which way is best? and also How would I set about doing it?
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Apr 23, 2011
I want an auto update of my own game launcher with customize [url]....
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Apr 13, 2009
I've been working on my program, which is a calendar, and I want to update it with the so called: 'Textfile method'. (Not ClickOnce, try'd it but didn't work out.) So basically I dont know where to start, I want my app, to download a text file from lets say: http://localhost/textfile.txt/ I want the app to compare the text file to its current version and if the textfile> than the current version I want the app to download lets say[curl]...
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Sep 2, 2010
I have been asked if its possible for an application that sits on a network folder for multiple users and check online to see if there is a newer version. If there is prompt the user to download it and load the new version.
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Dec 19, 2011
i want to update a row in an ACCESS DB in vb.net using sql query. the way to point to the row is using the primary key. the problem is that i was an error saying that there is a data type mismatch in criteria expression. the primary key type is auto-increment.[code]
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May 6, 2012
Currently I'm using a third party file hosting website (like mediafire) to upload my program and I update the link every time a new version is out.I know there are some ways to autoupdate the program but most of them need to own a website, which currently I don't have.So I was wondering if there could be a way to make an autoupdate using sites like mediafire.Example: I always delete old version of the program, on mediafire when someone try to access a deleted file page he gets redirected on a page which says "file deleted or invalid". So if the program find out that the file link redirect to that page it should inform the user about the new version.
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Sep 18, 2010
I decided give up vb6 and begin use vb.net.And I'm going to update my old vb6 code.I used write a vb6 program to update my program.it's a simple program:I have a webside,I put a file in the webside,this file it's just a document(.txt),only include version number.my program use "inet" download this file(address like this [URL]and compare the version number,if this document number it's bigger than this program number,than told user you need update your program.like this:
dim ver as string
ver=Inet1.OpenURL(http://www.sample.com/info/ver.txt)
[code]....
But,In vb2008,I don't know how to write those code.I search the local MSDN,it said I can use:""my.network.download" to download files,but it's only can download a file and save it as a file,I want to download a file and save it as a variable(type is long),I don't know how to write those code.
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Mar 2, 2010
I'm new in this forum. I am also quite a rookie programming in VB2008. In fact I'm not even a professional programmer. The situation is as follows.
I was hired by a company to do an Industrial Engineering job, but after some time, I realized that my job was also to design a database manager in VB2008 for the train wheel stock. So I am terribly lost. My problem here is that I dont know how to compare values and assign the biggest with the biggest, the smallest with the smallest etc. So I want to create a table and auto-arrange the values. An example of what I want to do in a macro of Excel is[code]...
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Apr 2, 2009
I am not sure but i am looking for some help regarding values to be autosuggested from database when a user types in a textbox and the values should be a drop down list. I am using VB Net and it is something like the Autocomplete feature except that the values should be from database. I have not seen any links to this type of material but i just wanna know if it is possible. Infact i have found this type of stuff working with a combobox but havent found any for textbox.
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Mar 28, 2012
Is there a way to auto-update a listview based on reading a column?
Requirements:
1) The code must make a call to a user-created "Private Sub" to recalculate
2) Update must be automatic. .SelectedItem or clicking a row will not work
3) The formula function cannot be included in Form_Load
I've got everything working if the user selects a row, then clicks an "update" button using .SelectedItem. But with my current program containing 200 rows, it's not feasible. Simply put, how would I go about updating a listview column (0 in this case) based off a call to a formula, then updating the row?
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Feb 16, 2012
I have a windows form with a DataGridView control.I bound it into an attached DB file (.mdf).I perform insertion by generating a dynamic Insert statement. I then pump this sql statement into a SqlCommand object and perform ExecuteNonQuery() method. All of these is performed by handling a Button click event. The button and the gridview is located on the same form.
Public Sub InsertRow(ByVal param1 As String, ByVal param2 As String, ByVal param3 As String)
Dim strConn As String = (the connection string)
Dim sqlConn As New SqlConnection(strConn)
[code]....
After the code execution, the DataGridView is not updating (remains intact). I have to exit the form and reload it to have the updated gridview.For certain reasons, I can't use DataTable object.But I would like to have this gridview updated everytime I run the insertion.
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Oct 18, 2010
I am having Syntax Error problem with the Insert and Update statement on using VB and Access that is having an AutoNumber that works also as Primary Key, the below is my code for it. I can do the insert if there is no Auto Number but if it does have, my code is not working. For my delete, when i RUN the below code, it wipes out all my my data inside my
Update
Dim strsql2
As String = ("update visa_block set(@utilized, @balance) where @id")
[code].....
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Mar 22, 2011
I am trying to make a sample Master-Detail relation ship database example in vb.net. When I add MasterTable a new row via bindingnavigator and save via savebutton autoincrement field goes -1 -2... negative values hence cannot get correct ID numbes saved in table rows till I close open sample application. How can I see correct autoincrement ID numbers in gridview after savebutton ?.Just ID numbers saved to mdb.but cannot see them i gridview and displaying negative weird numbers. This problem is important because without getting ID numbers cannot bind Detail table rows to newly recorded master table rows.
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