Error While Showing A Modal Dialog Box Or Form
Jun 23, 2009I am checking emailId exists in DB, If ExistsI am looking to create a Ok/Cancel confirmation dialog.if user say "Ok" I am redirecting to some other form.[code]...
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Showing A Modal Dialog Box Or Form When The Application Is Not Running In UserInteractive Mode Is Not A Valid Operation?
Sep 5, 2008I am writing a web application using .net 3.5 and vs 2008 which allows people to add data to a db via a control panel front end.Objective: Before committing one of the fields to the db i would like the user to answer Yes, No or Cancel to confirm their action. I have tried to implement this with a modal dialog box or message box but the following error appears: Server Error in '/' Application.
View 10 RepliesHalt All Other Execution While Modal Dialog Box Is Showing?
Oct 22, 2009I'm currently trapping all unhandled exceptions in my VB.net app to apply logging,but I still want to be able to halt and/or stop app.while displaying a dialogbox similar to the builtin unhandled exception dialogbox, where app. seems to stop to a grind until user presses continue.I think I perhaps need to start the dialogbox as part of another application, but I don't know if I'm able to halt the erroneous app.
View 11 RepliesMessageBox Not Showing From Modal Dialog Window
Jul 5, 2011I am trying to show a message box when an error occurs in a modal dialog window but for some reason the message box is never shown although I know the MessageBox.Show method is being hit. The try catch block is inside of an event handler for a windows form that is being shown as a modal dialog. I know that the event is being fired and that the error is being caught but the message box never opens. I've replaced the MessageBox.Show with another form show and it works fine but I'd rather use MessageBox instead of creating my own error form. I just can't seem to make MessageBox work. Is this a limitation of MessageBox? Here is a simplified version of what I am doing:
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Mdi Form And Show Form - Error "Form That Is Already Visible Cannot Be Displayed As A Modal Dialog Box"
Jan 26, 2010I'm new in .Net and I have an application with windows form "LOGIN" When users enter the user and password and click "ok", then if user passes validation then I have the code Show(MDIMainMenu) (I'm trying to open an mdi form), but I receive the following error: "Form that is already visible cannot be displayed as a modal dialog box. Set the form's visible property to false before calling Show. Error Number 5"
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Calling Showdialog() On A Form - From The Main Form's OnLoad Event Makes The Modal Dialog Go Away After A Few Seconds?
Aug 7, 2009I'm having an interesting issue that I can't reproduce on a different project, but can consistently on this one. I have no clue what might be causing it, but am hoping that someone may have seen it before.
I have a main form, from which I run a series of checks. On this form, I have a listview control. Because of some issues with the refreshing of this listview control, I had to create my own messagebox. It's just a form that displays some text ( it also happens to look nicer than MsgBox; in my opinion, anyways ). It's been working great for months, until recently.
My problem is that on my main form's load event, I run this check, which returns an error within a try/catch block. I then call my custom messagebox with a message. It in turns calls it's ShowDialog() function.
In any other situation ( after the main form has been loaded ), I have no problems. The messagebox goes on the screen and behaves appropriately ( ie: waits for my input and acts as a modal dialog ( stops execution of my main form's thread ) ). However, on this onload event, my messagebox comes up and goes away almost immediately afterwards.
I've traced it all the way to the showdialog() call. For no explicable reason, it appears to skip right over this call, without me doing anything on the form.
Here's what the inner trace looks like ( when I put a breakpoint on the onclosing event for this messagebox form ):
CODE:
Find When Dialog / Modal Form Is Shown For My Main Form?
Feb 3, 2010I want to be able to check if there is currently a dialog or modal form shown for my form so that I can close it.
Is there a way to do this?
Modal Dialog With Secondary Form Shown In Taskbar?
Jul 21, 2009I have two forms for my application, that are visible in the Windows taskbar. When a modal dialog is popped up on the main form, the secondary form is locked. However, when the user clicks on the secondary form on the taskbar, it appears over the modal dialog box, and is basically frozen. Is there a way to ensure that the modal dialog box does not draw underneath the secondary form? The topmost property is no good, since this draws on top of everything, even stuff not related to the application.
View 1 Replies.net - Main Form Minimized When Modal Dialog Calls Me.Hide()?
Mar 22, 2011sometimes (not everytimes), when I call the Me.Hide() in a form, which I called with .ShowDialog(), the main form, which called this dialog minimized.
View 2 RepliesForms :: Modeless Dialog Active When Modal Dialog Displayed?
Nov 16, 2010Is there a way to launch a Modeless Dialog that stays active even when a Modal Dialog is launched? Can I put the Modeless Dialog in a seperate Thread or something like that?
View 3 RepliesModeless Dialog Active When Modal Dialog Displayed
Nov 16, 2010Is there a way to launch a Modeless Dialog that stays active even when a Modal Dialog is launched? Can I put the Modeless Dialog in a seperate Thread or something like that?
View 12 RepliesClose A Modal Form From Who Initiated Modal One?
Feb 25, 2011I have a parent form (form1), which is calling a second form (form2) as modal.[code]...
No form2 is modal. Closing this form2 from the form itself is clear.But how can I close the form via myform2.close from form1 via an event handler?
Display A Modal Dialog Without Dispalying Other?
May 20, 2010I have a large VB.Net 2008 rich client database app and in it some screens take a bit to load, 1 - 5 seconds and two of them take up to 15 seconds. Right now I have a me.hide in my form load, I do my loading of drop downs and data, then do a me.show. It works decent and gives the impression that the program is quick. What I would like to do however is have a "waiting" or "loading" screen with a animated gif pop up while it's doing its data loads.
So I created a "WaitingForm" that has no border and a single picture box. In the form load of this waiting form it assigns a animated gif to the picture box. I set the form to be top most, no control box, etc.
If I call this waiting from from within my from load events as WaitingForm.show the animation doesn't work and the form only half shows (and in the wrong place on the screen). If I call this form using a WaitingForm.ShowDialog it correctly shows in the center of it's parent and displays the animated icon BUT blocks the calling form from processing and defeats the entire purpose.
How do I display the waiting form like it's a dialog box so it correct centers on it's parent and displays correctly but doesn't block the lower form from processing? Currently when I call the waiting form I give it a integer for how many seconds to display and then a timer on the waiting form counts down and closes itself. Do I need to use a worker thread and if so what is the easiest way to do this so the code is reusable from multiple different screens?
Evaluating Modal Dialog Result?
Apr 4, 2011Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
With Me.PrintForm1
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Modal Dialog With Multiple Forms
Jul 21, 2009Is there a way to specify what forms are Locked when opening a Modal Dialog? I want to have a specific form available even if a Modal dialog is opened. The form in question is a child form (Accessible from the Windows application bar), that is created from the main application form. The Modal Dialog should only lock the main application form, and not the secondary window. Is it possible to make a secondary form independent from the main application form?
View 1 RepliesYielding Events To IE In Modal Dialog?
Jun 26, 2009Windows Vista SP1 Internet Explorer 8 .NET 3.5 Visual Studio 2008 I have written a UserControl with VB.net that is embedded within a web page. The web-page also includes several iframes containing other interfaces.
One of the pages is defined to auto-refresh every 10 minutes (to keep a session object open on the web server). When the UserControl is displaying its main interface, the refresh in the IFRAME fires and updates OK. However, if I open a dialog (using the ShowDialog method) the refresh still fires OK but the IFRAME does not update until the dialog is closed. Presumably, this is because the dialog is Modal.
What I'd like to know is if there is any method of yielding events within the modal dialog that would allow the IFRAME within IE to update?
I tried adding a timer to the dialog and calling Application.DoEvents every few minutes but this did not appear to work. Not found any info on the net either.I don't really wan't to go down the route of creating some sort of semi-modal dialog class (i've yet to find one in the default .NET API - is there one?) as it would mean a lot of re-work so before I go down that route I thought I'd see if anyone can think of a alternative solution.
C# - Fading Background While Modal Dialog Shown
Jul 1, 2011When shutting down a Windows XP system, it displays a modal dialog box while the background fades to a grayscale. I will like to achieve the same effect in any of the programming languages in the tag list.
View 1 RepliesExpect Some Dialog Window To Appear In A Non-modal State?
Apr 19, 2009If I type this code (VB.net 2003):
Dim myDialog As frmTestDialog
myDialog = New frmTestDialog
myDialog.Show()
you'd expect some dialog window to appear in a non-modal state. For some reason, this isn't the case with a program I am working on. Most of the dialogs use ShowDialog() to open them, and one uses Show(). The second I try to show another non-modal dialog, the dialog appears in a modal state. Another strange thing is, before I show the dialog, there is code to shift the dialog location to centre it on the main form - this isn't executed either: the dialog appears at 0,0.
My usual trend is to blame myself for errors (usually the case), then I blame the software; I have checked every single line of code (including the generated code), and it all checks out - the dialog should be non-modal. But ... it's not. I've come across other errors in VB.net 2003; is this another instance?
I'll try creating a new dialog and displaying this non-modal, and see what happens. If it works, I can just transplant the code but this shouldn't be happening, just like if I go to a shop, ask for a cola, I expect a cola not a Chinese panda; more annoying, I return the panda, ask for a cola, and they give me the panda back do loop until I give up The system does using threading, but none of that code connects to the display dialog routines all dialogs are opened with more-or-less the above code (a few have simple validation routines).
Javascript - Show Modal Dialog Implementation Using JQuery
Apr 22, 2011I need to open a page as a Modal Dialog using Jquery .For Example: I have 2 pages say, Parent.aspx & Child.aspx, I need to open child.aspx in a modal dialog using JQuery when i click on a button/link in the parent.aspx. Also Postback can happen in the parent and child pages.
View 5 RepliesBackground Worker In Excel VSTO Application, Modal Dialog Makes BGW Cancellation Slow
Nov 25, 2011I'm using a background worker to in an Excel VSTO application to throw up a progress dialog box with a status bar and a cancel button to escape from long running calculations. It's working really well, except for one issue. I'd like to use a Modal Dialog, so that the UI behind the dialog gets locked up, instead of a Modeless Dialog. If I use .ShowDialog() instead of .Show(), everything is great until you hit the Cancel button on the form. Following things in the debugger, the cancellation happens, it just takes somewhere in range of 30 seconds. If I use .Show() on my form, then the cancellation occurs immediately as it should.
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Stop Form Showing If Any Error In Form.Load?
Dec 2, 2005I open a form using .showdialog and load some info onto it. I have code that runs on the MyBase.Load event. Basically, I have a Try, Catch, End Try block and if the Catch executes in preparing my information, I want the form to stop loading i.e. give a message and not show at all.
View 20 Replies.net - Inner Exception Error When Showing A Form?
Apr 15, 2012henever I attempt to open a form, an error has been popping up;
An error occurred creating the form. See Exception.InnerException for details. The error is: Index was outside the bounds of the array.
For simple code like;
formbooking.show()
Whenever I reference this form in anyway, that error pops up. I haven't done anything related to that form recently and I don't know what the problem is.
.Net Visual Studio Error When Showing Form
Dec 20, 2009I get the following exception when showing a form: InvalidOperationException was unhandled
Mixed mode assembly is build against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.
Error On Showing Form From Another Form
Jun 6, 2009I am getting this error on showing the form from another form. [code]
View 2 RepliesHow To Make A "system Modal Dialog" In C#
Oct 22, 2010How do I make my form a "system modal dialog" as in Windows XP? "Turn off dialog" so no operation can be made in Windows except in my form in C#.
View 3 RepliesOpen File Dialog Not Showing Network Locations
Jun 3, 2009I am doing setup project in VS 2008. I used custom action to select file from local drives. On the button click of custom action form, I am launching Open file dialog as ofdGetNetPath.ShowDialog When I run the setup on Vista, and click the button to open the openFileDialog, it hanged, form becomes non responsive and I have to cancel the setup.
on debugging I got following error "Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your main function has STAThreadAttribute marked in it. This exception is only raised if a debugger is attached to the process."
so I used the following code:
Dim ofdThread As Thread ofdThread = New Thread(New ThreadStart(AddressOf ShowOpenFileDialog)) ofdThread.SetApartmentState(ApartmentState.STA) ofdThread.Start() Private Sub ShowOpenFileDialog() Me.ofdGetNetPath.ShowDialog() End Sub
now on button click, OpenFileDialog is shown but it is not showing Mapped drive or Network location... what should I need to do to show the mapped drive or network locations?
VS 2008 Save File To Set Folder Without Showing Dialog Box?
Jun 2, 2009How would I go about forcing a file to download from the web browser control so that instead of a file dialog box showing it will automatically download to a set folder?
View 4 RepliesPrint Page When I Click On Button Without Showing Printer Dialog?
Feb 4, 2010I have a web page and a button inside, how can i print the page when i click on the print button without showing the printer dialog?
View 1 RepliesPassing Information Between Forms/dialogs (Form -> Dialog -> Dialog)?
Dec 22, 2009I often use the process of displaying a dialog from a form, with the dialog user input then used to update the main form without any problem. In a new scenerio I launch the main application screen, I then show a login dialog ontop of the main app screen and can launch another dialog from the login if a new user is required. The plan is to update the login dialog (updating a combobox to reflect the addition of a new user) from the new user dialog.
See code below :-
'Update login forms user list as new user added successfully
frmRoomBookingLogin.cboLogin.DataSource = Nothing
frmRoomBookingLogin.txtPassword.Text = "Updating password from dialog"
MessageBox.Show("The password text is " & frmRoomBookingLogin.txtPassword.Text)
[code]....
The messagebox implies the dialog has been updated yet the text does not change. Is it possible to update the dialog when using a setup such as Form -> dialog -> dialog? I'm intrigued as why the dialog does not reflect changes. I have never refreshed/repainted the dialog as never required to in my other examples when updating a form from a dialog and never encountered a problem when using a two tier form setup.
Common Dialog File Multiselect + Explorer Not Showing Files Selected?
Jan 30, 2007i have a vb script that is imbeded in an html page (hta). when i use the common dialog flags = cdlOFNAllowMultiselect the file list is present in the filename object and are separated by a space. however when i use dialog flags = cdlOFNAllowMultiselect Or cdlOFNExplorer the files that i selected on the dialog box, are not present in the filename object. the only thing that's there, is the path to the files. here's the code:
Const cdlOFNAllowMultiselect = 512Const cdlOFNExplorer = 524288Set ObjFSO = CreateObject("UserAccounts.CommonDialog")ObjFSO.Filter = "All Files|*.*"ObjFSO.FilterIndex = 1
ObjFSO.InitialDir = "c:" ObjFSO.Flags = cdlOFNAllowMultiselect or cdlOFNExplorerinitFSO = ObjFSO.ShowOpen selected_files = ObjFso.FileName msgbox selected_files
how can i get the files names?