I have a MDI parent that opens another form like this:
Dim frm As New Form1
frm.ShowDialog(Me)
That form has a button that, when clicked, does this:
CreateObject("Shell.Application").ToggleDesktop()
The button operates as expected (showing the desktop) most of the time but occasionally does not minimize the MDI parent. All the other windows, including the form above get minimized every time.
Is it possible to have an application where form1 opens a second modal form (form2) and then allows the user to minimized form2 causing the entire application to minimize to the taskbar.(form2 is never shown in the taskbar) A simple example of this is winzip where a second modal progress window is opened which can be minimized?
View 10 RepliesI have searched now for hours trying to find a solution to this. I am trying to allow a user to minimize a form instead of closing it. I have tried about 5 different things so far in the form_closing event to minimize but have had no success. On another not, is there a way to allow the icon to be displayed? I know I could easily do this by using a different form layout but I prefer the compactness of the FixedToolWindow.
View 2 RepliesI have a Form inside an application. I need to be able to minimize it from within the code of the Form itself. Any ideas on how to do it? Could not find a minimize function.
View 2 RepliesI'm trying to teach myself how to create an Occasionally Connected Application. I want to create a simple app (like a survey) that will store all the data on a server but have the front end run on the users computer. The users computer may or may not be connected to a server when the data is entered (they may be collecting data in the field).
Program does 3 things:
1. Shows data from database (ie, displays survey data stored on server)
2. Saves data to database (ie, new entries or changes to old entries)
3. Has a background thread that checks for network connection
a. If no connection exists:
i. Gets data, to show, from local database
ii. Saves data to local database
b. If connections exists:
i. Sync local database with network database
ii. To read data: Gets data to show from local database which is now synced with network)
iii. To save changes/new entry: Save changes to local database then sync changes with network, then send update call to anyone else running this app on a different computer so they will get the same changes?
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...
I have a Windows Form custom control that displays alerts on a customer record. The control uses an Infragistics 9.1 UltraWinGrid to display these alerts, which is filled from a dataset populated by a business object. Some users are having issues viewing these alerts; the grid will be completely blank, like the fields were hidden for some reason. This sample code shows how the grid is populated:
Private Sub InquiryCallbackAlertList(ByVal sender As Object, ByVal e As FunctionRequestEventArgs)
Try
'Code to populate the dataset mdslist
AlertsGrid.Visible = True
[Code] .....
I have not had any success finding anything out about this problem. I did add some trace logic to check the 'HiddenResolved' property on the grid rows and am waiting to find out the results of that. Is there anything else that could be causing this grid to only be hidden for some users and not for others, and also could anything else be causing this only to happen occasionally?
Beginning development with SQL Server 2008, VB - Visual Studio 2008 on an application that will deploy laptops remotely for 6 months or more. The laptops will have no network or internet connection. There is a requirement to sync DB changes via shipment of USB flash drives.
The remote app will have a subset of the home database data. Some tables need to be synced bi-directionally, some uni-directionally. When the laptop comes home, it will do one last sync, the local DB will be wiped, and it will connect to the home DB.
Being that there are some identity key columns and the remote is only a subset of the the home, I am not sure that SQL Server replication or synchronization functions can be utilized.
Should I Create SQL Server Compact DB's on the remote system when it is deployed and do a table by table compare (in code) to another compact DB created on the flash drive when a sync is needed?
I have a program that has a main window, and a progression of other windows that all open from each other. I only want the main window to show in the taskbar, and I want to be able to minimize at any window, and have every window minimize to a single item in the taskbarThe problem is: when I set each form's 'SHOWINTASKBAR' to True, every form shows in the taskbar instead of just one. If I set the 'SHOWINTASKBAR' property to False, they don't minimize to the taskbar.
View 1 RepliesI have two froms when one from is opend it should not be minimized when mouse clicked outside the from like the message box in vb.net
View 1 RepliesI have 4 textboxes that a user can input date into, a save button, and another textbox that gets filled automatically depending on what is entered into the 4 text boxes.Lets call the 4 text boxes: Name1, Name2, Name3 and Name4 we'll call the last text box Complete.When you press the save button I want the values to be displayed in the Complete text box like this: Name1="text" Name2="text" Name3="text" Name4="text", BUT, only if they actually have a value.So if they all have some text in them except Name2 then the Complete box would read: Name1="text" Name3="text" Name4="text" - so Name2 wouldn't show up at all.Is there a simple way to put this in an If Then statement without scripting out every possible outcome?
View 8 RepliesI have a windows application created using 2005. One of the screens keeps minimizing each time it's loading and I don't know why. when I look at the properties for the form, the window state is set to normal.
I did have the below line of code being used when the user clicked a button on this form because i wanted to minimize the form at that time; however, I've sinced remmed it out because of what's happening now.
I am developing Windows Forms Application SRacq10 in VS2010 in VB.Net. It provides a WCF duplex service and obtains real time financial market data using COM object TWS (Trader Work Station) provided by Interactive Brokers, Inc. SRacq10 works well most of the time. Occasionally, it crashes; I have not been able to observe a pattern of circumstances when it crashes. When I try to add debug to a text file, I can never make it crash; that's not an acceptable solution in the long run. Here is the fault information when running the debug version outside of VS2010:
Event Viewer:
Faulting application name: SRacq10.exe, version: 1.0.0.0, time stamp: 0x4de7a42c
Faulting module name: MSVCR80.dll, version: 8.0.50727.4940, time stamp: 0x4ca2b271
[code]....
We have a vb application with many forms that contain a "lookup" button that has an icon called find.ico. Once in a while, a user will open one of these forms and get the below error but not every time. Has anyone else run into a similar situation? Since it is not consistent, it's been very difficult to track down.
Exception Source: System.Drawing
Exception Type: System.IO.FileNotFoundException
Exception Message: find.ico
I get this error while im following the "Walkthrough Creating an Occasionally Connected Application" [URL]
Im already in the " To configure tables for local caching" > step 4.
Then when trying to connect this error pops.
"Failed to sync database" <a href="http://tinypic.com" target="_blank"><img src="http://i45.tinypic.com/ur3fq.jpg" border="0" alt="Image and video hosting by TinyPic"></a>
[Code].....
While writing an app that uses a couple settings, they occasionally get re-set to empty. I haven't seen any pattern to this, but I do have a vague memory that there are certain circumstances that will reset the settings in a project under development. What are the circumstances that cause the settings to be reset?
View 6 RepliesI have developed a tool to watch a folder using the below thread.
[URL]
Issues i am facing
1. Its not working on Samba Server
2. I need it to watch on predefined times only. (i.e., may be every 5 Hrs)
PBL (Visual Studio 2010 Ultimate)
Also, once i get that done, How would i make it display notifications?(Similar to that of when someone logs on in MSN messenger.)
View 4 RepliesPart of my application deals with creating a number of pivot tables. I pull data from a local database, and store it in a datatable. From here, the data is processed and eventually a pivot table is returned. On small data sets it works well, but on some larger one there is a few seconds of "nothing" until the table is shown.
After a few iterations of trying things to display some form of progress I have ended up with a form with nothing but a progress bar running on it. I spawn a new thread, and run it. It works exactly like I hoped. However, when I call the thread.abort() method to terminate the thread, occasionally, the main form will minimize. I tired having me.show() aftre the .abort() to bring the form into view again, but it appears not to have helped.
Now I understand that it is better practice to have worker background threads, and the main thread for UI, but is there a simple way of ensuring that the main form does not close?
Private Sub LoadProgressForm()
Dim progressForm As New ProgressBar
progressForm.ShowDialog()
[CODE]....
I know how to minmize to systemtray using a button and by the use of a notifyIcon, but i want to minmize to system tray using the minimize button on the title bar of the form. I think it as something to do with the resize event but i dont know what.
View 9 RepliesI'm making a small version of Spy++ and i would like to recreate the function that finds windows by dragging your mouse over it. Now that is pretty easy but one little annoyance is some windows minimize or loose focus ect when you bring the mouse pointer over them.
I would like to know if you can stop a program from gaining focus or minimizing. And i know i can get the handles of open windows by the EnumWindows function?
I am using VS 2010 to create a Mac OSX like dock application.Everything has worked great apart from one of the key features of the dock! So what I want is:When the user clicks the minimize but on any (including external application) it minimize to the dock I have created rather than the windows Task-bar.
View 5 Replieslike seen on the web, with both the two following codes:
ShowWindow(Hwnd, SW_MINIMIZE)
ShowWindow(Hwnd, SW_SHOWMINIMIZED)
I can minimize without problems an EXTERNAL application window from it Hwnd.The big problem is that once minimized the application cannot be manually managed: also if I close my program, both left click or right click on the external application taskbar button don't work: I can't maximize it and I can close it only by Ctrl+Alt+Del... why?
I have an application written in VS2010 that targets FW2.0..It has no dependencies other than the framework.The application runs fine on the local drive.But one user tells me that he already had FW2.0 installed but had to install FW2.0 SP2 in order to get the exe to run if it was placed on a network/shared folder? Why would running from a server/shared folder make the application crash if Sp2 wasn't installed? some network/path error that was was fixed in SP2 that doesn't affect the app when running off the local C drive ?
View 1 RepliesIn my VB.net Winforms application I'm using the ITaskbarList3::SetOverlayIcon interface to set status overlays on the application's taskbar button (under Windows 7). This all seems to work fine for me, with the icons being shown and removed correctly.From the form load event, one of my functions makes the callSetOverlayIcon(parentForm.Handle, IntPtr.Zero, String.Empty)(where parentForm is the form which the load event has fired for) which very occasionally (on other people's machines) throws the following exception:
System.Runtime.InteropServices.COMException (0x8007057A): Invalid cursor handle. (Exception from HRESULT: 0x8007057A)
at MyNamespace.TaskbarNotify.ITaskbarList3.SetOverlayIcon(IntPtr hwnd, IntPtr hIcon,
[code].....
I have a bit of code that jumps around a few domains and adds a user to each of them. This follow is a piece of code I had to write to get around the issue of the .add and .invoke being ran asynchronously and occasionally causing errors.
It connects to the domain in question, passing a "CN" from the code in as a search filter but receives a COMException which is normally a LDAP sting config issue. The connection string in this is fine so I am not sure why it is having such a hard time.
Function GetUser(ByVal UserId As String) As DirectoryEntry
Dim objRootEntry As New DirectoryEntry
objRootEntry.Path = "LDAP://DC=SERVER,DC=LOCAL"[code]....
Why does SetOverlayIcon throw an 'Invalid cursor handle' COMException occasionally
View 1 RepliesWhile the application is running, I want the buttons, text boxes, datagrid, everything thats on the form to resize when the screen is maximized and again resize when its minimized.
View 2 RepliesI have used timers in .Net for a long time now an never had this problem.Start timer to fire every 10 seconds that reads an object and updates the UI using a delegate.This works great until the form is minimized several times, then the timer thread seems to vanish.Anyone come across this before?
Obviously I can roll my own using a thread directly and sleeping it, however this seems like reinventing the wheel when a threading timer class exists already.
Code: Private Sub m_Tmr_Tick(ByVal state As Object)
[code].....
This is a challenging one that got me stumped while I was coding today. Suppose I am running the Sub Test1() and Test2() and would like to print out the value of the Shadows method of the instance of the object I am passing in to TestCall() (see below - it is clearer) using the following restrictions:
Can't change the contents of Class A, B, and C
Can't change Sub Test1() and Sub Test2()
TestCall() can't have an if, select case etc. statement that tries to figure out the type
[code].....