VB Drawing Application Not Working Correctly - Run In Is Just A Gray Block
Dec 10, 2009
I'm a college student just starting out programming in VB and am having a lot of trouble trying to get my drawing program to work. Currently i am using Microsoft Visual Basic 2008 Express Edition and whenever i try to debug my program the window it's supposed to run in is just a gray block. I'm not too sure if this is the right place in the forum to post this so if it is just let me know and ill move it. c:
I put a monthcalendar in my form and when I select a range of date, the selected area goes white, all the dates in the selected range go white. I have no clue how to fix this.
I have been making a text based noughts and crosses game and trying to convert an alpha grid reference into a number to run the logic sequence that decides whether the an input is valid. I am using the asc command to convert but it just keeps putting up the error: Conversion from string "a" to type 'Double' is not valid, when it reaches the line If (Asc(Left(choice, 1)) >= 65 And Asc(Left(choice, 1)) <= 67) Or (Asc(Left(choice, 1)) >= 97 And Asc(Left(choice, 1) <= 97))Choice is the input and has already been checked for length, whether it contains an alpha and numeric input (and where they are) and whether the numeric value is valid.
MVC3 VB.NET application. I have the below section of code in a function. This code is supposed to only fire if the handout1 is not nothing. But for some reason it is going into the then block when the handout1 is nothing in the database... I have tried a hundred different ways of checking but it is still trying to run that line of code even when there is nothing to assign to it....
I am at college and am creating an app. however i have two main problems within my app. my app is a pizza app which will allow staff within a pizza shop to send the orders to the kitchen (this is just a listbox).but, the math doesnt work, the correct pricing isnt being displayed in the label for the orders for some reason. I have tried different ways of writing and placing my code but the result is always the same. also, i have five customers per table. if i select all the customers orders and click on send, only customer two's order will be sent. not any of the other customers, but if i just do customer one on its own, it works.
I have a context menu strip associated with a listview. Everything work just fine however one of my menu options on the context menu strip has a pop-out menu (you know, you hover over the selection, and another menu strip expands out).I can seem to get these to work correctly.
Public Sub ReleasedToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ReleasedToolStripMenuItem.Click FileEntries(ListViewSelectedIndex).Status = "Released"
[code]....
So I changed my sub to read as the one VB created, and still didnt work. So I went back to edit the context menu, double clicked "Reserved" menu items, then VB creates a sub w/o the _1 (like I had before).Also the check-box status for these menu items works fine.
I use the following statement to position which row to update; Dim salonToUpdate = (From r In db.Salons _ Where r.StoreID = storeID _ Select r).Single() If fileDate = #1/1/1900# OrElse fileDate = Nothing Then SalonToUpdate.LastDownLoadDate = TableDate [Code] .....
I've double checked to make sure none of the dates are invalid or null, but when the bolded statement executes, the following sql runs through the trace: exec sp_executesql N'UPDATE [dbo].[Salons] SET [LastDownLoadDate] = @p0 WHERE 0 = 1',N'@p0 datetime',@p0='2008-01-04 00:00:00:000' Of course it's going to fail if LINQ is passing in where 0=1 every time. Shouldn't it be using some unique row identifier, (in my case, the salon id), to update the specific row?
i have a text box that has a max length of 5. when typeing into that text box the character input stops on the 5th character. if i set teh text property to a sting that has more than 5 characters the text box accepts the string. in vb6 i think that the text box would truncate the string to 5 characters.
does anyone know of a way to truncate, or get the text box to only accept the maxlength of the text box
[[code]I have this issue where most of the rows in the table do not fill in the data to textbox2 and any edits made in the text box when this happens do not commit to the underlying datasource.When scrolling down and back up the datarepeater different records seem to be shown each time the data on the left is correct in the standard DGV ... it's just the data repeater that doesn't work.
i'm currently implementing a localized website. I've created a custom ResourceProvider + Factory for storing resources in a database. This all works, i'm storing data as follows:
This issue is driving me nuts. Yesterday it was working perfectly but unfortunately I deleted the form by mistake and I had to build it again. The form contains a datagridview and I have the following code on the Load event:
HTML
Private Sub GUIAS_ConsAd_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load Me.ADIANTAMENTOSTableAdapter.Fill(Me.GUIASDataSet1.ADIANTAMENTOS)
[Code].....
The same code on the Sorted event of the datagrid produces the same effect
This is a follow up to another question of mine. The solution I found worked great for every one of the test cases I threw at it, until a case showed up that eluded me the first time around.My goal is to reformat improperly formatted tag attributes using regex (I know, probably not a fool-proof method as I'm finding out, but bear with me).
My functions: Public Function ConvertMarkupAttributeQuoteType(ByVal html As String) As String Dim findTags As String = "</?w+((s+w+(s*=s*(?:"".*?""|'.*?'|[^'"">s]+))?)+s*|s*)/?>"
Ok so on my project it seems the timer is not working correctly, the interval is set to 5000 (which is 5 seconds... right?) so every 5 seconds it would display a MsgBox telling me the current date/time and then a time in a list.
I am currently working on a snake game. I am trying to make a red block appear every time you eat food a red block appears. If you hit the red block, you die. For some reason, food works, but the red blocks never appear
I have an AsynchFileUpload on my page and for some reason when I try to use it to save the file to the server it falls. The control will allow me to select a file locally and it displays the local file path in its text box, BUT when I then click a button on my page which I am going to be using to submit all details then upload the page everything goes wrong and I get a Null Ref Exception from the AsynchFileUploader.
[Code]...
It seems that the filename is being lost somewhere after the button is clicked, or just never stored
I have made a form that consists of textboxes nested in groupboxes nested in tabpages. I want to check if all textboxes are empty in every groupbox and even if the controls from a groupbox in a groupbox are empty.When they are empty i should not create an element string for my .xml document.Below is the code that I have at the moment. I call it with the form as the parameter.
Public Sub recurringControls(ByRef ctl As Control) For Each c As Control In ctl.Controls If c.Controls.Count > 0 Then If c.Tag IsNot Nothing Then
I'm trying to see if the microphone on a PC is working correctly by utilizing the SpeechRecognitionEngine class.I'm using the following
VB.NET Dim RecognitionEngine As New SpeechRecognitionEngine(New CultureInfo("en-US")) 'Dim synth As New SpeechSynthesizer 'synth.SpeakAsync("Microphone")
[code]....
When I run this code, the microphone runs until it detects a sound. If the room is silent, it never stops. At least so much as I can tell so far.But I need a way to detect when it can't detect a sound within a specified interval.I looked on MSDN and all I could find was a property called, BabbleTime. I can specify a TimeSpan that will time out the speech recognition, but from that, I can't determine if it was the timeout that caused the code to continue or if it detected sound.
I have some update panels on my page that do some asyncpostbacks to keep some dropdownlists correctly populated. My problem is that on my page i have an HTML input that is handling some file uploads. With the AJAX on the page with asyncpostbacks, and while i step through my code behind, the files arent being uploaded. Using a postbacktrigger (non-async) is not possible because of my layout.
When I put a breakpoint in at the declaration of service and then check the value of "files", the count is 0. I am expecting it to be 2 when i have one file uploaded.
I'm having a problem over here; I'm developing a DirectX 9 application, and for some reason, I can't figure the way to close the application completely. This has never happened to me, to be honest. I am using Application.Exit(), which doesn't seem to do anything - it just closes the form, but the program is still running. I have also tried End, but it throws a run-time error I can't seem to figure out.
Ive seen that people use Form.Close() and Application.Close(), but what if I have many forms, and I may have forgot to close one of the forms correctly, is there a way to exit the application that actually checks to make sure that all the processes related to the program are closed first? I read on another forum that Application.Exit() is a bad way to close the program, and I found an example code of how to do it the right way, but Ive never found this anywhere else before.
We have a current implementation of a log file manager where it's two main purposes are to 1. rename files generated by other programs with a date/time stamp so they create new ones, and 2. delete files older then X amount of days from a specified folder. The program also makes it's own log file which records when these events happen.Do you think the Logging Application Block would be useful in this instance? The old file manager is written in VB 6.0 and an upgrade to VB .Net would not take too long, but is it worth it to try and implement LAP into it?
I'd like to block unwanted application from running in my system, mostly setup until given access by my application. I would have a white list of allowed application.
I'm having a problem with some users, my vb tools always check at the splash screen a response from a server with a simple:
Dim MyResult as string = oWebclient.DownloadString("www.mydomain.com/page.php")
This actually works for most users but in some clients the firewalls I think they block this call or bypass or something like that, I found that after telling the user to turn off the firewall everything works ok, now I have some users that according to them they don't have a firewall or they already disable and still they have the problem.
You can see from the image the error message they receive, so my question is do you know any kind of free tool that I can send to the user to maybe log what program or whatever is blocking the program to connect?
So I created an application with vb.net, I added Messenger type Api in preferences, compiled my program and everything was fine. However I can't run the program from other directories. It says that the .dll is missing. I'm trying to include the .dll to the program somehow - no success, how that should be done? Friend tried to help me and said I should add "Application block" something to the references. I can't find that though.
I have a block of code in an application I have written. I have tried two different variations.Below are examples of the method I used: [code] The second example adds only three more lines of code. Yet, the app would run at about 10% of the speed as it would in the first sample.
