We have a legacy setup that creates pdf's on the fly based on client info. I can follow everything through where the process gathers the info and everything runs normally, until it gets to the doc.Form.FlattenFormFields then it goes in to limbo. I've captured the base64binary string and it tried to use that to convert to a pdf with no luck also.
View 1 RepliesAfter adding a string to the program from the resources the build always fails, and removing the string and the code to load the string does not solve the problem, as the build still fails. We've been using multiple versions of the program since this started happening with the most updated one, and adding the string is what started the failure in building even though we added other elements (like an exit button) and other forms without it failing. With the one that started with the build failures we've tried it on all types of computers and it does not manage to build on any of them, even one's with a new installation of Visual Basic Express 2010.
The exact line added that apparently makes the build fail is:
PictureAndInfo.infoBox.Text = My.Resources.StegmeierBreweryString
And the string added to the Resources isn't anything unusal compared ot the rest we have but it is this is:
The Stegmaier Brewery business began in 1857 when Charles Stegmaier first set up a shop. Since then the Stegmaier business has grown greatly. The size of their operation has grown from the original shop to the large building pictured to the left (opened in 1863 and purchased from Stegmaier in 1978). The Stegmaier Brewery Company was purchased in 1974 by Lion, Inc. and Stegmaier Beer is still produced today by Lion, Inc. and remains a popular choice among consumers.
I've got a panel - that's in a group box. All of this - with lots of other textboxes on labels - is in another panel (the big panel).I make the big panel visible and not visible based on selections made by the user.This small panel - that's in the group box. I cannot seem to make it appear.Even if I leave it VISIBLE at design time - the objects in it will not appear.Is there some kind of nesting problem that I'm not aware of!
View 9 RepliesI have five menu items that i have created as a user control and placed on the master page. Now i want one of the menu items to be visible only for particular user role and not visible for others. Here is what I did. Its not working though.
[Code]...
I'm having an odd problem when making a form visible and not visible and it not continuing to function. Here is what I have happening. I have a main form (frmMain) that is an MDIParent. On this form I have a menu to open a second form (frmCalculate) and populate a listview from Items in the database.
As I click or select items in the listview on frmCalculate the tag is read and data is pulled based on the id stored in that tag and fills in various fields on the form. This works great. However, I also have a context menu attached to the listview that allows me to perform a "what if" scenerio on the items I am calculating. When I select this menu, I hide the frmCalculate and open the frmWhatIf form where I can mess around with values on the item I had hilighted in the listview on frmCalculate. Nothing is pulled from or written back to the database here, all the information is filled in from fields on frmCalculate. It just allows me to look at rising costs and how they will affect my margins.... anyway.
If I then close frmWhatIf, it brings my frmCalculate back by setting its visible propery to true (never closed frmCalculate, just hid it). At this point if I click an item in the listview I get an exception for a null reference. IF however I never hide frmCalculate, I can open and close frmWhatIF without ever having an issue. Why do I lose the functionality to select items just by hiding and unhiding the form? As a test I added two menus to the toolbar on frmMain one called hide and one called show. I then opened frmCalculate with original menu item to populate the listview and selected a few items to test that it was working and then using the hide menu I made the form invisible and the show button to bring it back. This yielded the same exception so without even opening frmWhatIf the problem still occurs.
I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
[code]....
I have seen in Debugging .net 2.0 Applications the following code [code] Is there any reason to use the #if directive? I mean, from what I understand the method will only be called if the DEBUG is defined, so I don't see a point in having the #if in the method body.
View 2 RepliesI was asked by an employer to sort a hash table. I always thought that the usage of a hash table was in a way non-sort friendly. Am I wrong in thinking this, and if not can you point me to a good VB.Net(Yes Kill me now, but it's an old system) method of sorting a hash table.
View 3 RepliesI have inherited some code with a function that looks to Deserialize a Byte array that does not work with even simple arrays eg {1,2,3,4}it error out with "End of Stream encountered before parsing was completed"..Apart from the fact that it should work, I don't see how this does anything useful since all it seems to do is turn a byte array into an object. [code]
View 1 RepliesI'm having problems with my VS2005 .Net2.0 VB.Net Windows forms application.When I start the application and work with it for a while it somehow disappears from the taskbar.To get the Application button back on the taskbar I use Alt+Tab to switch to the application and voila,.. the taskbar button is back.In my code and form I can't seem to find anything strange.ShowInTaskbar is set to trueFormborderstule = SizableIt is an MDI application that is used for administrative purposes on sql databases.
View 4 RepliesI have an application in VB 2008 Express that uses a DataGridView to display rows of information. I have a DataGridViewCheckboxCell on each row for selecting the row so the user can mass delete the selected rows. For some reason, whenever I try to select a row via checkbox it adds another row to the DataGridView, is there anyway to disable this?
View 1 Repliesi am trying to find the sin (any number *Pi) but for some reason its not working. the result i am getting is the answer of (sin(any number)) * pi here is an example of my
Answer.Text = Sin(variable1 * Math.PI)
****note variable1 is user input
I have a problem where a form is closing when it shouldn't be. I just don't see why this is happening so I hope someone can see the obvious error that I'm missing.The user is on a form called frmPersonalAddress. If he clicks on a button labled "Add Children", he will open a new form, using the .showdialogue method called frmChildren.FrmChildren contains several text fields that may be filled and a single CLOSE button. When closing, the program will examine the fields. If it finds an error, a Messagebox will display with the error and the form should remain open. If there are no errors, the form will close
View 2 RepliesI just got done creating a couple of classes for my program and tested them with this code:
Dim
TheTest As
New
DiscoveryFlashCardSet("C:UsersBrandonDocumentsGeoffrey Set.bsfci"
)'Line 19
[Code]...
I have been programming for almost a year now, and I still havent found a real reason to use the Panel control. Is there some kind of use for the panel that I dont know of? It must be here for a reason, but I just cant figure out why? Does anyone use this control?
View 5 RepliesI created a Windows service to upload files from client to a shared folder on a server having a shared permission with everyone has a full control over it using Microsoft BITS service, this service runs with the local system account. The issue is that BITS jobs always get cancelled and I don't know why.I'm using this code
Try
Using BITSManager = New System.Net.BITS.Manager
For Each sItem In arrlDriversFilesUploadList[code]......
Last night my project worked just fine. I left my system up overnight and came in this morning - my project is still on the screen, so there was no update/reboot or any of that. I added 6 lines of code, and suddenly get Build Failed. I removed those lines of code, and still get Build Failed. I restarted Visual Studio, and still get Build Failed. No Exception is ever thrown and no cause for a failed build is ever given. Output is set to Diagnostic, and it indicates nothing wrong or out of the ordinary - every task completes successfully right up to the end when it says Build Failed.
View 6 RepliesMy program has two lists, one a listbox and the other a listview viewed in details mode.
Both of them change heights (get taller) for no obvious reason. I am having to add a call to a method that resizes them to the end of every method, which is kind of absurd, I think. Also, when the window size is changed, these components change size, which means I have to keep track of that.
Edit: I had also thought of adding a timer to handle this.
I finished a database access application that accesses and retrieves data from a database. It was working perfectly fine until i was commenting the code and i decided to test the program again and i found that across all my forms i was getting the same error which is the[code]...
View 3 RepliesSo I am trying to change the directory where the files are beeing saved. I've made a file where the location is saved. But for some reason, when I have saved the new location and restart the application, the file is is cleared, leaving it empty.
Show
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
I'm using agsXMPP in my .NET project (WinForms).I have the following Code block, this is executed whenever a message is received from any client.Now whenever a message is received, this block executes and the program terminates..Has this something to do with threads? (I've heard that agsXMPP encapsulates a thread on which it works)
Private Sub messageReceived(ByVal sender As Object, ByVal msg As protocol.client.Message)
Dim chatMessage() As String
Static Dim Hi_ed As Integer = 0[code].........
I have created an authentication system in the Server that verifies the user exists and password is valid. Here's the code I use for checking a Connect:
vb.net
Private Sub messageReceived(ByVal sender As ConnectedClient, ByVal message As String) If message <> String.Empty Then Me.Invoke(New WriteLog(AddressOf WriteMessage), String.Format("Message: {0}", message)) Me.Invoke(New WriteLog(AddressOf WriteMessage), String.Empty) Me.Invoke(New WriteLog(AddressOf WriteMessage), String.Empty) 'A message has
[code]....
Basically, I follow through the code and I do receive the user list and it is created as needed. But the GUI thread still remains locked up and I don't know why.
VS 2008 Finding the reason a form is Closing
View 1 RepliesI am trying to start a timer, but for some reason it doesn't. I've added a messagebox to the code and the messagebox appears so it looks like it skips the timer start code.
This is the
If DATA = "***!***STARTREMOTE" Then
MessageBox.Show("START REMOTE...") 'DEBUG
MiniLiveTimer.Enabled = False
[Code].....
I have a media player that I'm trying to send to back at the end of a clips playing, but for some reason it's not working for me.this code is in form1 public class
Code:
If IntroMovie = True Then
VideoPlayer.uiMode = "None"
VideoPlayer.BringToFront()
VideoPlayer.URL = ("C:Program FilesQuestGamesRiou And SiztovideosRiouIntroMovie.wmv")
[code].....
I am placing and image using this [code]It works perfectly however when my document is extended to second or third page.. it does not stays on the first page.. it stays on same position however moves to the last page
View 1 RepliesI am using My.Computer.Network.UploadFile(arg1,arg2,username,pass) & sometimes it returns an error to me about not being logged in?I keep using IE & such to visit the ftp'd pages & even login & logoff the ftp site server at times, but seemingly randomly it will fail, even if I use try catch statement, it seems to keep wanting to fail till i go back to IE & go to a webpage on the server or log back in to the account management through IE.
Should it not be authenticating & working correctly each & every time regardless unless the server can't be reached? Why is it wanting to fail SOMETIMES when closing these webpages/logging out on IE only, why is this seeming to have any bearing on this failing in VB.
I have a series of WebRequests in my app all formatted like this
Try
request.Timeout = 30000
' Get the response and read it to the end [HTML of a page]
[Code]....
After roughly 250 iterations of about 5-6 WebRequest per iteration, the app hangs and starts hitting the WebException "The remote name could not be resolved: 'hostnamehere' ". WebPages also don't load through my browser when this happens, I have to close the app for my internet to work again. This app is multithreaded and I was testing with 100 threads (in a threadpool, MaxThreadCount set to 20, addressof the sub which performs the WebRequests). A test with 20 threads yielded identical results - Same WebException also right around 250 iterations processing the same sub. I have tried setting the ConnectionLimit of the request to the thread count with no luck.
Is there a technical reason why there is no implicit conversion from DBNull to the various nullable and/or sql types? I understand why the conversions don't currently happen, but don't understand why an implicit conversion wasn't created at the time or added in subsequent versions of the framework.Just to be clear, I'm looking for technical reasons, not "because that's they way they did it" or "I like it that way".
View 2 RepliesIs there any way I can find the exact reason a form is closing ? To be more specific , I'd like to find when a form is closing :1) because the user pressed the X button on the upper right corner2) due to code (Me.Close , MyForm.Close etc)I know I can use the FormClosing event and use this code :If e.CloseReason = CloseReason.UserClosing Thenhowever it seems that the CloseReason.UserClosing catches both cases (closed by te X button or by code) . So , is there any way I can find exactly the reason a form is closing ?Back in VB6 , the correspondent UnloadMode variable of the Form_Unload event could be "vbFormCode" which indicated specifically that the form was closed by code
View 4 Replies