On my emailer program ive created a messagebox to appear if any of the textboxes are empty when i clcik send, its works fine (first time) but if i leave a textbox empty for the second time and click send i get an error.[code]
View 20 RepliesFrom my login form, and when a correct Username and Password has been succesfull and I get a messageBox saying "welcome to your System" (Picture Below) and when I press the OK button in that MessageBox, I want to open Form3.do I add code to the Underlined code (below Picture), or Do I write a completley different code after the messageBox code.
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I used to write code at a previous job in lots of languages, VB just one of them. At my new job I am tasked with writing code again. I have picked up VB 2010 express to get started and will move forward from there. The problem that I am facing is that 2010 uses the .net 4.0 framework. This is too new for the add-ins to support.
It follows, my question: Is there a way that VB .net 2010 can be forced to use a specific .net framework? Can I tell it to use the .net 2.0 for instance?
I'm looking at a project that will use the speech recognition stuff provided with .NET, but need a tutorial or two to introduce me to it.
View 2 RepliesI am creating a program in VS 2010 which obviously uses Framework 4.1 However now that I am trying to test the program I am realizing usually only developers like us have this version.. Is there any way to downgrade the needed version of the framework for my program Currently I run it on my test computer and it asks me to download 4.1 version.
View 4 RepliesIf I delete the top row of my datagrid, or load a page without any data in the datagrid, I get a NullRefrenceException error. "Object reference not set to an instance of an object."suggest a way for it to only run the default values needed sub if a row exists in my datagrid, else ignore it?
View 6 Repliesi'm coding a small app.i need to use regular expressions.I've got a huge string. and i need to find some substrings and put them into variables.for instance:<span class="(some constant class)">sb's Name</span> I need to cut "sb's Name" and put it into variable.how to do this using regular expressions?I know, that I can use webbrowser and whole DOM structure connected with it. But I can't, so I must use RegExp.
View 1 RepliesHow can I tell what the size of my program is and how much disk space is needed to install. When I publish the program and install it on another machine it will show up in the control panel but does not show what size the program is?Also when I publish updates with it says something like installing 10mb. Is this an additional 10 mb everytime, I guess not, but can someone explain what it all means?
View 10 Replieshow can I add math symbols in Messagebox? For example square of 5*5...when i click the button that in messagebox will be some math formula.
View 4 Replieshere is what I have
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim r As New Random
[Code]....
That basically displays a random piece of text from a string of entered texts into a listbox, but when I put a comma and apostrophes next to the last set of apostrophes to add a title to the message box, I get a really long error. how can I avoid this and add a title to my box to make it pretty?
I am trying to make a message box display evens from textbox1 (being the user's low input) to textbox2 (being the user's high input). I currently have it displaying the correct numbers for evens, but they are appearing it separate message boxes. I need them all to be displayed in the same message box.i.e. Textbox1 = 1 , Textbox2 = 7 MessageBox = 2 4 6...Also, I have to do the evens in a Do While loop and the odds in a Do Until loop.
View 11 RepliesI have a parent form, which can lanch a dialog box. A wrong selection in the box launches a message box with an error message. When the message box pops up, the dialog box disappears, so the messagebox is sitting on top of the parent form.Once the user clicks "OK" in the messagebox, the box disappears, and only the parent form remains.How do I make it so that the dialog box remains when the messagebox is displayed? And also, I want the dialog box to remain when the user closes the message box. The user should have the option to make the right selection in the dialogbox once the messagebox disappears.I tried to hunt for a property for the dialog box to achieve this, but couldn't find any.
Here is the code in the parent form to lauch the dialog box, and to also launch the messagebox, when the user has made a selection in the dialogbox:[code]Am I having this problem because all the code to launch the dialog and message boxes reside in the parent form? If I put the code to launch the messagebox in the dialog box, would that make the dialog box persistent when the messagebox is launched? I am putting all the code in the parent form because it can process the DialogResult.
I can't figure out why my messageboxs won't work when they encounter errors.Here is my
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I just want to know do i need other files than exe from my "Release" folder to run app on another computer?they are (its very basic app) config, pdb, xml.
View 8 RepliesI've created a form with several controls to specify the inputs to my program. They include TextBox, OpenFileDialog, Button and even a user control for numeric input. When the user clicks the 'GO' button, the program begins it work. Opening several files and processing a bunch of numerical data. This could take many minutes/hours with large datasets.
What I've been trying to do is have another window/form open up and send status information to it for the user to view. The info to be displayed is varied and constantly updated as the program crunches the numbers. Many many programs do just this type of activity.
I attempted to create a second form with a huge TextBox thinking I'd just write stuff to it. I called the .show method within the .click of the 'GO' button and of course the form is displayed but control of the program's execution doesn't return until the form is closed. How to I maintain execution and have a second window/form to display status?
I understand that I need to run ... corflags.exe /32BIT myapp.exe against my VB .Net app if I want to make sure it's associated 32 bit dll's will be forced to run as 32 bit on 64bit computers.
If this will work this looks like a good idea to me since I don't have the opportunity to recompile them on a newer Visual Studio that supports targeting 32bit. But I have a couple of questions...
Question 1:Is there an easier way to get the corflags.exe program without having to download the whole .Net Frameword 2.0 SDK?
I guess this is what I need to download if there is no easy way to get the corflags.exe file...
Download 1:Microsoft .NET Framework Version 2.0 Redistributable Package (x86)
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The following code is giving me a headache. As you can see there are message boxes in there for a quick debugging tool. It displays the messagebox "Still looping" once, and then shows the form. No other code runs. Doesnt matter what I put it it just doesnt run. I can't see a problem anywhere....
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I am creating a report in my asp.net application. The report outputs to excel using the excel interop. Some calculations in the report cause excel to display "Inf" or "NaN" I want to force these calculations to zero so that the report displays zero and NOT "Inf" or "NaN"
View 1 RepliesI have a date, myDate = 07/16/09 14:22I would like to arbitrarily force the time portion of it to a predetermined value like myDate = 07/16/09 18:00.
View 5 RepliesThe only way I know to force a paint event in my pictureboxes is to do a 'Picturebox1.invalidate'. I read that this isn't the best way to do it though, so what's the best way to make my picture boxes repaint?
View 8 RepliesI am using VB.Net 2008 Express on Windows XP, and am trying to use WM_LBUTTONDOWN in one of my programmes.
CODE:
This appears to work correctly, in that it goes to the Exit button and I can see the effect of WM_LBUTTONDOWN and WM_LBUTTONUP, but the programme does not actually exit; it just sits there with the Exit button highlighted. I added all the TimeDelay() subs to see whether it needed the extra time.
I also made the following changes, and again, it goes to the Exit button and I know that it is on the button using Spy++, but the programme does not actually exit
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How do I force it to exit?
How can I, in VB.NET, force the focus to the desktop?
View 1 RepliesIs there a way to force a form to be active and shown?
From another form i am doing:
Me.Hide
Form2.Show
When this code is run, the Form2 is minimized.
I've also tried:
Me.WindowState = FormWindowState.Normal
in the load event, and it still loaded it in minimized mode.
I have a couple of split panels nested inside of each other. The problem is, I'm rendering an 8x8 tiled game inside of the center panel. Basically, the height and width of the panel need to be an odd multiples of 8 so I can find the center tile displayed easily.I need the width and height to be divisible by 8. The number 8 is multiplied by should be odd:EDIT AGAIN these numbers below do not refer to the size. They refer to two number being multiplied. I've changed them to a * to show this. These numbers below apply to both the height and width. One number should be odd, the other 8. 8*x
5*8 - Good
6*8 - Bad
I have console application embedded in a Panel on my Form. The problem is that the Vertical scrollbar of this application always stays at the top, and I would prefer that I was always able to see the caret (prompt) so I can see the latest info.
How do you force a Window to display the caret?
Do solutions give the option of the caret being at the top of the window or the bottom? I would prefer that the carat is at the bottom so I can see all the info immediately prior to the caret, as in this screenshot.
so ive set the size to be locked so you cant drag it around. is it possible to place a button and when i press it the size goes from 300,200 to 500,300?if yes, how would the code be?
if no, would it be possible at all with any settings?
way to have a launcher/updater app for a program I'm working on. It'll have people register, and not let them run the main program without registering. So, say, I have launcher.exe, and main.exe, and I open main.exe. I need it to exit and open launcher. I was going to use sockets to do a simple ping/pong type deal, but sockets are breaking my face in vb.net since I've only used them in vb6.
View 2 RepliesMy pictureboxes sometimes clear of all drawings when they are done creating the image, or sometimes halfway through. Calling GC.Collect() before the drawing starts lets it draw MORE before it clears, but how can I stop it from clearing entirely?
View 2 Replieswith the following code it is possible to place some images in the clipboard
Dim Sc As New StringCollection
For Each itm In FileNames
Sc.Add(itm)
[code]....
is it possible to force the clipboard to change name when these images are pasted by the user?
I have a form with a datarepeater that contains various controls (i.e. datetimepickers, text boxes, combo box) that are populated via a binding source. I also have other controls on the form that are not part of the data repeater.
I would like to force validating all controls after the data is populated. I have successfully forced validating the non-datarepeater controls using Me.ValidateChildren() at the end of my load event. However, it does not fire the validating events for the controls within the data repeater.
I have unsuccessfully tried many different attempts to set and move focus within the datarepeater controls trying to get the validating events kicked off. I am not sure where would be the best place (e.g. in drawItem? in ItemCloned?) to place the code and what it should be exactly. Here was my latest attempt:
Private Sub DataRepeater1_DrawItem(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.PowerPacks.DataRepeaterItemEventArgs) _
Handles DataRepeater1.DrawItem
[Code]....
Note: I successfully handled the validating events in the data repeater caused by user input errors. However, I have the unusual situation that the data coming into my form is already bad for some of the controls. The purpose of the form is to validate the data coming in to it and from user-input.