Asp.net - Some User Controls Not Loading When The 'Back' Button Is Pressed?
Dec 14, 2011
I'm working with ASP.NET and VB.NET. I have a page which contains 5 user controls. the page itself does nothing, it just presents the user controls to the user.
The user controls work fine when I come on the page, or when I refresh, but when I go to another page, and press 'Back' only two of my user controls shows up, and they don't work like they're supposed to!
Short description of the controls:
2 controls which look if the user has to create something and shows an option to do so. (goes to the DB)
2 controls show an overview if needed (goes to the DB)1 control looks if the user is an admin (does not go to the DB, but looks in the securityContext)
an application i developed using vb 2008 express, to fill a web form with data from an access database, one after another when a button is clicked hasn't given me what i expected. the loop was suposed to stop after filling web form with the first data on clicking a button and continue to fill the webform with the next(2nd) data from the database on clicking the button again. Below is the code i wrote
Private Sub STARTButton_Click(ByVal sender As System.Object, ByVal e
im toying with an idea based round having controls end user movable at runtime, and having a function to save the current position/location of all the controls, so then i can skip through presets i already made as it were. Ill be using .ini files eventually (just testing with txt files to check it was a valid aproach) I can get all the info i need into the txt file, the problem is how to read it back into the app?
I have a button on my form where I'm showing a ContextMenu when the user left clicks on it, I'm actually using MouseUp right now to show it.What I would like to have happen is the user click on the button, the button stays pressed while the ContextMenu shows, it returns to normal when the ContextMenu closes (Either a menu item was selected, the user hits the escape key or they click/tab to somewhere else). Also I'd like to position the ContextMenu in the lower left corner if the menu opens down or the top left corner if it opens up. So the left edge of the ContextMenu is flush with the left edge of the button.Moreso the button staying pressed until the ContextMenu is closed.
Edit: I'm also ok with this being it's own control inheriting the FW's Button that used the assigned ContextMenu as well.
I am making a program that calculates various results with variables entered by the user. What I am trying to do is incorporate a function that will allow the user to switch from metric to imperial easily but only when the ok button is pressed. Now I got all the coding done for the metric and everything is working fine. My problem is when I use the radiobuttons to switch the entered variable in the text box to the desired unit it gives me a 0 or a random number in the textbox...
I also have labels indicating each variables unit which I easily managed to change with the text box using this code. : 'Change Labels to Metric lblMDegreeC.Text = "Degree C" lblMDegreeC2.Text = "Degree C" lblMmm.Text = "mm" lblMmm1.Text = "mm" lblMmm2.Text = "mm" lblMm.Text = "m" lblMm2.Text = "m" lblMm3.Text = "m" lblMDegreeC3.Text = "Degree C"
I created all the coding to convert the metric variables to imperial. My problem is changing the textbox text when the user switches the units during run time. The labels change without a problem but the textbox never works. I have attached the coding for the file.
There is newer code in a follow up post. I suggest using the code in the later post rather than the code in this one. You can still read this post though. When designing a user interface, one should be conscious of how many individual controls are required to implement the functionality. In some cases an initial design may begin with many buttons or textboxes (for example) but then further review of the actual required functionality allows for a reduction in the number of unique controls.
But other times, there isn't a better way (which will still make sense to the user of the application) then to have a series of many repeated controls. So in the cases where one can be certain that the best UI implementation for an application will require the use of multiple copies of a given control, then it often becomes necessary to maintain some method of managing all of those controls at various points throughout the application. Doing so typically requires that one build up some collection of controls which can then be accessed by index in order to work with any given control; but this can lead to a lot of clutter in the code file which handles these control's events. For instance there will be some kind of collection declaration, some recursive routine to find all of the controls of interest, and then any number of event handler methods with long lists of Handles clauses, or additional code loops to wire up the event handling for each control.
Purpose Since most of this functionality could be considered a requirement regardless of the type of control being managed, or its required functionality, it may make sense to wrap all of the control management functionality into a single class. And since our first requirement is a collection of controls, then a base collection class could be the perfect starting point for our control manager. There are a number of existing thread around this topic, with some recent (at the time of this writing) ones being:[URL]..In this, and related, threads I have posted examples of a simple TextBoxManager and ButtonManager control. But again, with so much similar functionality required regardless of the control being managed, it would be technically possible to create a generic ControlManager(Of T As Control) class which can manage any type of control.
[Code]...
So in summary, one can facilitate managing a large number of user interface controls by building a "control manager" class which both encapsulates the list of control instances, and deals with adding and removing defined event handlers for every control it manages. The generic control manager class itself can be inherited and extended into a more specific class on a per-application basis in order to provide more application-specific functionality. Reed Kimble - "When you do things right, people won't be sure you've done anything at all"
How can I set a button, so that when it is pressed, it stays in the pressed down graphic state. Then when pressed again it returns to the normal not-pressed visual.Make a button stay like this until pressed again: url....
I am using the media player control in my VB2010 project and hit a problem. I want to detect when a user has pressed the "next " button on the media player console.I can use the following code to detect the pause, play, fast forward, etc but I do not see anything that will detect when the "next" button is pressed.
I'm new to VB and I'm making my first Application.I want my ProgressBar to start loading when MessageBoxButton.OK is pressed.This is my
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click MessageBox.Show("My Text", "My Title", MessageBoxButtons.OKCancel, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1, MessageBoxOptions.DefaultDesktopOnly, False) If AcceptButton Then ProgressBar1.Start()
[Code]...
Also, I'd like the ProgressBar1 to finish after a certain time after it started. How do I do that?
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.
I just want a program compiled in Visual Basic 2008. which can just submit a form of only one field. the form is already uploaded to the server but i don't want to go to that url every time to do so.What I want here, just to open application and fill that field and submit. Is this possible in visual basic 2008?Also let me know how to create a button that can rapidly submit the form repeatly untill the second button named cancel is pressed. field name of that form is "msisdn" and the action on submit button is post method and url in target is url...
Basically my program creates a text file based on whatever is contained in the 6 list boxes. What i need it to do is load the text it created back into the relevant list box. text file looks like...
Consignment Number-----Shippment Method------Expected Departure Date CC33-1EA------------Express Air-----------18/05/2010
I am writing an application and I want to be able to have it check for updates. When someone presses a button. (Note: I am using Visual Studio 2010, and the application is in VB.NET 4.0)
Is there a *simple* syntax that will close a form when a button is pressed and leave the application completely if there is only one form? In vb6 it is, e.g. Private Sub Command2_Click() Unload(me) End Sub I have got as far as knowing its Button2_Click...
I tried your code and got it to work - put buttons on my form, etc. I included the AddHandler for each btnNew(index):
Public Class ButtonAdd Private btnNew(9) As System.Windows.Forms.Button Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
I have a button on a form, and I want to increment a counter an display it in a lable, while the buttion is pressed. Similiar to a numberic up down control. The reason is that I want to use a custom looking button, rather than the look of the numeric up down control.
Is there an easy way to do that while the button is being pressed? Or would it make sense to change the look of the numberic up down (I don't want UP and DOWN on the same control, though).
When I press a button on my form i need it to open a file. E.g. I want it to open a song (in windows media player, windows media player is the default program to open mp3's) Shell("C:UsersTomDesktopmysong.mp3") When trying the above ^ it just says file cannot be found.
I'm developing a interface in VB.net which will control two stepper motors. Counting on your tips I managed to control them manually I mean, there're 4 buttons used to move the motors clockwise and anti-clockwise. The point is, the main part of our project is control the motors automatically. Our idea is based on two editable fields, X and Y, where the user would insert the displacement value he'd like the motor to move. After filling up both fields, the "GO" buttons would be pressed. So the loop would run depending on the displacement values in X and Y.
Attached you can find the main screen:
Below you can find the main code.
Public Class Form3 Dim velocidade As Double = 0.004 Dim X As Integer = 0
Im looking for guidance/example on how to track if a button was pressed so that I can turn on another button and turn off the first button. I am saving a bunch of user data to a text file & that works fine. Once the user enters all of the required data, I turn on button "btnCBSave". What I am trying to accomplish is once button "btnCBSave" has been pressed once, turn itself off and make button "btnCBNew" visable so that the user can enter new data.
