Threading - Form Doesn't Load Up
Feb 11, 2009
I want to build in the Mongoose web server into my application. My program consists of a form and a module. The module contains the Mongoose code copied from here: [URL] If I call the Main() function in the module from my form's Load event then the web server starts correctly and I can connect to it. However, that's as far as the applicaiton goes - my form doesn't load up. I guess this is because my application is only single threaded and the Mongoose code basically puts the thread into sleep mode waiting for a http request.
So, the question is how do I go about getting Mongoose into a separate thread that starts up when my application starts, but then allows my form to load and be operable?
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May 18, 2012
I have a form which on occasion doesn't load...you can see in the task bar ...but it is blank.The code I'm using is pretty straight forward...
Dim admin As New Administration
admin.Show()
I need the user to be able to try again...
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Dec 6, 2009
I have several forms that are "reused," or vistited more than once per each time in the whole program. In VB6, using Form.Show() would show the form in its original state (the state is was when created in the designer). After closing this form (Unload Me), showing it again would still show the form in its original state.
I am coding in VB.NET 2008, and noticed that when I reopen a form I had closed during a session using my program, the form is in the state it was when I closed it (labels and listboxes filled with data), and not in its original state. I currently have the Form.Closing event filled with code to clear all of the controls, but I think that there must be a better way to "clear" or "reset" the form.
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May 19, 2012
Two Forms 1. "SplashForm" 2. "MainForm" I want to load "MainForm" AS background Process of "SplashForm" process when "SplashForm" process end i just want to show the "MainForm" which should be already loaded code
[code]...
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Aug 29, 2011
I am having dataset with 5000 records.I am reading them in the below 2 functions and writing to excel.
FillDataRows1(worksheet)
FillDataRows2(worksheet)
private sub FillDataRow1(byval ws as worksheet)
[code]....
When I create thread also it is taking same time .
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Oct 14, 2009
See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
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Jul 27, 2009
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
Dim con As OleDbConnection
Dim cmd As OleDbCommand
[CODE]...............
The insertion part of the form works great. But my problem is in the form load part......If i leave a field blank(Null),then perform Save operation,close the form after successful insertion and then reopen the form,then it retains the previous values during the form load......This is only in case where i leave a field blank in the previous data entry in the database.......But if i enter values in all fields then form load is working great.
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Jun 3, 2009
What is the best way to access a value of a control within a form outside of the form class. I have a lot of functions defined in a module, one of these functions requires a series of values from controls in my main form such as the FolderBrowserDialog.SelectedPath element. I understand that these cannot be accessed in the format form.FolderBrowserDialog1.SelectedPath and that they need to be accessed using a delegate. This is the part I am stuck with.
[Code]...
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Jun 28, 2011
I have a Webbrowser in my application, it loads the same page after it has finished loading every few seconds really. After a while it will either freeze halfway through loading (show only top half of page) or just not reload at all and stay on loaded page.
I originally tryed the .refresh method but didn't work good, then I tryed just the simple .navigate to the same page, works better but still same problem.
If I manually refresh it with F5 it will work as normal again for a period of time.
Also if I run it outside of the IDE it can crash and give me "flash.ocx not found, it's not included with this version of windows" or something, very strange.
Main prob is webbrowser gets stuck / wont refresh even tho the code is in the DocumentCompleted event.
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Dec 14, 2009
How can I load a form and allow it to run it's code in the form load but keep it not visible. I want it to do what it needs to but but not display.
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Apr 7, 2011
VB.Net 2k5 Web Application The base application has a web.config file with an httpModules section:The sub-project compiles to the same bin folder as the base application, but I get this message:
Parser Error Message: Could not load file or assembly 'Castle.MonoRail.Framework' or one of its dependencies. The system cannot find the file specified. (c:inetpubwwwrootweb.config line 132)
Source Error:
Line 131: [<]httpModules[>]
Line 132: [<]add name="monorail"
type="Castle.MonoRail.Framework.EngineContextModule,
Castle.MonoRail.Framework"/[>] --- Error here
[code].....
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Jul 9, 2010
I am building a form that will load individual items(from individual files) or a catalog of items(from a list of items). I then click the item I want to use to select it. Everything works correctly, when I click an item it selects the correct stitch. The only problem is, it doesn't display correctly when I load from a catalog. I can open individual items and it works fine. When I load a catalog it doesn't display the images correctly.
[Code]...
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Jul 7, 2011
I run the same exe file on another computer, but it gives error.The application works on my pc, but does not work on user's pc.I try to compile the app in other development machine and it is work well, the problem is my app doesn't work on user's pc.
Could not load file or assembly 'CrystalDecision.Shared, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. The system cannot find the file specified.
[code].....
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Aug 15, 2011
I'm upgrading some code from VB2003 to VB2010. I'm now getting an error when I try to close a form from a media player event.
[Code]...
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Oct 27, 2011
I have a few forms that have a lot of really intensive updating along with a great deal of user interface (text boxes, button clicking etc) Is it possible to open a separate form as a separate UI thread from the start up form that called it to "show" or open or whatever the new method might be?
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Jan 4, 2012
I thought Me.Close() works, but hey I'm a noob at this. Right now I'm using:
Form2.Show()
Me.Dispose()
Me.Close()
but now that I've published it, I have to pull up my task manager and do end process to actually close the app. This wasn't a problem until my office started using a public drive and everybody was using the program at once. An error popped up saying that the connection string wasn't initialized, but it worked on the computer that opened the app first. Maybe the real issue isn't properly closing the form, but that is annoying that I have to use my task manager to close my app.
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Feb 23, 2010
I'm not sure how to explain what's happening but it seems to be deadlock, i did search along the forum and actualy did find who had the same problem as i did. Unfortunatly i'm too new to this Threading and could not understand why does this deadlocks happen or how to avoid them.I'm using the following
Dim t As New Threading.Thread(AddressOf MyTestingSub)
t.Priority = Threading.ThreadPriority.BelowNormal
t.IsBackground = True
[code].....
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Aug 24, 2009
I would like to load a default created image at start. But seems to not be working on form load any ideas.[code]
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Jul 20, 2010
The coding that I have a problem with might make people think that I am creating some malware. So the project I am doing is associated with iTunes. iTunes allows people to have one library. There is another way, but it is very confusing to some people, and very unreliable. So my project is that I will allow people to have multiple iTunes libraries on one computer. So the problem is this. In order to have an option to choose your library, I gotta make sure that iTunes is not running.
So this is the script:
Private Sub CheckAndCloseiTunes()
retry:
'Custom class that includes the function to safely close iTunes
Dim Processes As Process() = Process.GetProcessesByName("iTunes")
[CODE]...
So when I use the Threading.Thread.Sleep(2000) code, the form becomes unresponsive.
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Mar 15, 2012
I am developing a application where I have 1 parent from (windowstate of Parent from is set to Maximized) and 2 child forms. In my Parent form I have a menustrip with following code to activate child -
[Code]...
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Apr 16, 2009
The form is an About Us form so has nothing on it only a text box and a OK button.
[Code]...
Why won't the button close the form? I'm puzzled, I tried another button just in case with the same result. UPDATE: I set a break point on Me.Close() and it isn't reaching it when I click the button, I created a new button and the same thing happened.
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Apr 7, 2012
I have a couple of tables in a sql server database and i want to load the data from them in form load.
Here is the code i use to load the first table
connection string here
Con.Open()
Dim objCmd As New SqlCommand("SELECT * FROM Customers", Con)
Dim cust As SqlDataReader = objCmd.ExecuteReader()
[Code]...
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Jun 28, 2011
Public Class EasyPlayer
Private Sub EasyPlayer_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
System.Diagnostics.Process.Start("MediaPlayer")
End Sub
[code]....
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Feb 8, 2008
i have created a user setting named 'setmeup' as string, scope = user, value = "magical meow meow!".in my code i access it and assign it a new value like this...my.settings.setmeup = "howdy cowboy!"my.settings.save()application.restart()when the application restarts, i expect the my.settings.setmeup = "howdy cowboy!" but when i check its contents its still "magical meow meow!".but when i use application.exit() instead of application.restart() and manually restart the program, my.settings.setmeup = "howdy cowboy!" which is correct.what must i do? i want to use application.restart() because i don't want the users to double-click the icon again to start the program. i want the program to restart automatically.
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Jun 1, 2011
In trying to test some graphic features, I am trying to get them to display on load so button doesn't have to be pressed. I used the following code as suggested from forum. Message boxes run but ellipses aren't displayed until button is clicked which is what I am trying to avoid!
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Button1.PerformClick()
Button1_Click(Nothing, Nothing)
[code]....
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May 15, 2012
How do i load the Main form of a WPF so that a seperate thread goes and gets data from the database while the form is in an apartmentstate? (drag-able / movable) I Know this is possible with opening a new window from your main form like this :
Private Sub openOrderWindow()
Dim OrderWindow As Orders = New Orders
OrderWindow.ShowDialog()
End Sub
[code]....
I've tried putting MyBase.ShowDialog() and .Show() and .9000+ other things The only benefit I've got out of using a seperate thread to load from the databse is i can see the screen right away (as oppose to it being a transparent box until it loads) but i cannot move it around or minimize it?is there any way to make it Movable while it loads?
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Sep 16, 2009
i am asking about using the progress bar into the status bar to move when i load any child form inside the MDIParent form.
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Jul 19, 2011
I've been trying to use "System.Threading.Thread.Sleep(15)" as the delay code but if freeze the form. I used this "Location.Refresh()" where location is the name of the form, but it didn't give me what I need. This code is going to work on a ProgressBar while typing and the value of the progress bar change while typing. The progress bar jumps to the new value and I want it to move. So I thought about puting it in a "For ... Loop" but the whole form freezes.
[Code]...
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Jun 3, 2011
I have two forms. Form A and Form B. Form A has a datagrid that is populated from a SQL Database Table query. When a button is pressed Form B is launched that allows you to add a record to the database table. I need for the datagrid to be refreshed and show the newly added record when I close form B and go back to the parent.
[Code]...
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May 14, 2009
i am having an issue populating two combo boxes on form load. The program will connect to an access database and pull data as instructed. Then as it pulls each record it puts it into the combo box.
This was working.. atleast i think it was. i dont recall it ever not working, however i wasn't looking for it.
My problem is that if when i load the MDI parent form and have it skip the selection form and the login form and load the next form in the sequence, it loads everything perfectly. However if the select form is loaded first, then the login form and then the form i need loaded, it will not populate. The only difference between the two different loads is that the login form calls a function that loads the form as a new project.form
I did this so that I can have multiple forms open at a time. I am assuming my problem is that I need to get the child forms handle then populating controls using that handle? but i think if I had to do that then I would beable to populate the comboboxes on the first form load using the login method of opening the form.
Here's my code.
vb.net
Private Sub frmLine1t5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Text = "Line " & LineNumber & " Test Form"
[Code].....
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