i used v s 2008..i create a windows form application in vb.neti want help in which .........if i exit a sub *check_fill_for_New()* using EXIT SUB then in *bt_Ok_Click* sub not fire a msgbox......but it will also EXIT at half
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I have been getting sometimes with SOME libraries (be it included in the framework or not).[code]I'd expect the func.Call() to return an exception if something is up, or do anything to error out, but here it just murders my method which returns instantly! The same stuff here is also in a loop, which doesn't get any more iterations, it just stops executing this function and continues running the program.
View 1 RepliesI have 2 Richtextboxws on the form. I need for each textbox to take up half the form width and full height. also, I need those textboxes to keep the above mentioned proportions even when then the form size is changed on the screen.
View 1 Repliesexit VB2008 without saving the current project?Or to revert to the previous saved version?After trying a few changes in my program I decided that is was not the way to go. So I wanted to discard my changes and start again with the program the way it was.
View 9 RepliesIn my form there is a DataGridView, the user select information in the DataGridView then there are text boxes that needs to be filed in. So this is what needs to happens if the focus is on the DataGridView when the user hits the Tab key it moves the focus to first text box. Then once the user hits the last tab box it returns focus back to the DataGridView but to next cell. Initially figured this would not be a problem and did this code;
Dim PreviousCell As DataGridViewCell
Private Sub DataGridView1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles DataGridView1.KeyDown
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I have a situation that has puzzled me for weeks. I am running logic that does a bit of back and forth to and from the database for each time it is executed (about 20 times). The problem is that the same code works about half of the time. What could possibly be the reason for the difference in execution performance and how can I better shore that this problem is checked?
View 1 RepliesI am having problem closing current form when I call some other form from current one.For example when I use code [code]It closes the current form but does not call frmExam.vb.
View 1 Replieshow to copy the left half of an image, in my case its the let half of a .jpg of a whale, and "paste" it over the right half of the image. Any help would be great, here is some code that might have something to do with it, i would prefer that i could get an answer that accomplishes this by modifying this code but if not that's cool. picture should go from looking like [] to [[
Dim mb, rb As Bitmap
Dim x, y As Integer
Dim r, g, b As Integer
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What my program does is load a file (password list), then progressively reads each line of text in the file whilst writing each line to a new file. After X amount of lines have been written, it should start writing the lines of text to a new document until the initial password list has been split into X amount of password lists. The problem I have is that after hours of tweaking, all I can get it to do is write either blank ocuments, or write all of the lines to only one file. I really need it to be able to split into multiple files, preferably at runtime rather than loading a whole text document into the program in a textbox or array then writing it to new files.Below is the source:
Imports System
Imports System.Windows.Forms
Imports System.IO
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My routine to check for updates is run as a separate process. Exiting the application is required to update, so a dialog asks the user, when an update is found, if they want to exit now. f they do, the code (from the update thread) calls Application.Exit().However, if the FormClosed event of any form that needs to be closed needs to access its controls, an invalid cross-thread operation is detected (which sounds pretty logical).
View 1 Repliesis it possible to call form load event on button click
Following is the vb code i want same function in vb.net
Private Sub cmdaddcancel_Click()
Form_Load
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in vb we simply call Form_Load is it possible in vb.net
For eg: IN VB.net currnetly i am on form no 1 and there is one button on click of dat button i want the current form should again load is it possible
I would just like to know how to run code in vb.net when the program is closed with the red cross in the top right of the screen.
View 2 RepliesWhen I close my VB.NET application it occasionally yields the following error code: The program '[1584] Foo.exe: Managed' has exited with code -1073741819 (0xc0000005). This error only occurs when one of the MDI child windows is maximized and then the program is subsequently closed. When I step through the code, the error appears to be generated after the execution of my "custom" code is complete. What might be the cause of such an error? Where might I find more information about this exit code (Google and Bing were little help - maybe I didn't search for the right thing)?
View 4 RepliesI have an exit script working for the [X] button on the top right corner of the screen:
vb.net
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
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I have managed to create and code a file menu exit with the following code, however I just can't seem to find out how I am able to edit the red X in the top right hand side of the form next to the minimise and maximise buttons?
Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitToolStripMenuItem.Click
Dim close As String
close = MessageBox.Show("Are you sure you want to exit?", "Exit Log Book", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
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this its a function i made to make sure all the fields on a form are filled before to save to database but once it finds a object it should exit. but it just doesnt... i tried also with exit for and exit sub also tried puting the exit for just after the msgbox shows up but it wont exit, this its the last thing i did using a flag but it doesnt exit either.
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On our software factory grid servers, calling VBCodeProvider.CompileAssemblyFromSource randomly fails.
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What does the 128 error code mean ? The version of vbc.exe used is the one in the .NET 2 (SP2) folder. Forcing the compiler to work in a new dedicated temp directory does not help (we update TMP and TEMP env variable on runtime, we checked that each vbc use a dedicated temporary folder based on process id and some static counter)
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What is the best way to return a exit code from a windows forms application?
View 3 RepliesI'm developing a program using VB 2005.I've tried to use the following instructions to "kill" the application
Application.Exit()
Environment.Exit(0)
(not at the same time)
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for the any of the button in vb the c# code which is written is not working at all after running a form example: exit, message box even these also not working give me solution
View 1 RepliesI'm having a bit of a problem getting my application to close properly. Basically I have one main form from which all other forms open. If a user tries to close that main form, I want to bring up a MessageBox asking if they want to exit the application.However, when I try to do that it asks the question twice. It seems that the Application.Exit() is triggering the FormClosing event again for some reason, but I don't know of another way to exit the application. BTW, the main form isn't the startup form so I can't use the option to close when the startup form closes.
View 9 RepliesNow I have a sub to validate a bunch of textboxes and combo boxes.I previously used many IF statements to validate and pop up different messageboxes and Exit Sub in every IF statement.But I heard that too many Exits will decrease the efficiency and they were not recommended to use. Instead, nested IF is better because it will let the process naturally go to the end.Then I found out that if I use nested IF,it will be hard to read, since messageboxes are all separated from conditions.
View 2 RepliesI can call C code from Visual Basic by compiling that C code into DLL's.
1. Does it have to built in Microsoft Visual? Or is something built with MinGW okay?
2. How do I add it into my VB project?
3. How do I actually make the function call? (given that VB and C syntax obviously have some differences)
how to mirror the top half of an image of the bottom half, i already mirrored the left half of an image over the right half, as shown in the 2nd block, but i need to modify the 3rd block correctly to get the top half to mirror over the bottom half, how do i do this, - visual basic express 2008
Dim mb, rb, cb, db As Bitmap
mb = Bitmap.FromFile(tbFileName.Text)
cb = Bitmap.FromFile(tbFileName.Text)[code].....
How do I exit from the recursive loop from the code below. I would like to notify the end-user to select a checkbox in a msgBox before I exit the loop.
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I have a project that has some VB code in it that I'm not allowed to convert to C#. I work in C# and not very good at VB, but I am needing to modify that VB code to use some C# methods I created.
For example:
C#:
Code:
using MGCIS2.Reporting;
using CrystalDecisions.Shared;
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At this line in the VB code (Dim crv As New Tax.Reports.CrystalReportViewer(_rdbc)) it is giving me an error:Too many arguments to 'Public Sub New()'
I have to call a Javascript function that takes 2 parameters and opens a new window. I need to call this function from VB.Net code-behind and I'm not sure how to do this. I can't find any examples of how this is done. Anyone have any ideas?
View 7 RepliesWhat exactly does the "calling code" means? A method to do an action?or else.,
View 6 RepliesI need to write a DLL in C that is used a plugin for an existing application.The DLL has to be compiled by the Visual Studio 2008 compiler with the following options.[code]It's then linked to applications library's.What it actually needs to do and what's causing me the issues is that within one of the methods it needs to pull data from a sql server 2008 r2. From what I've seen today you wouldn't be able to do this directly in C as SQL Server past 2005 is designed to communicate with CLR languages( C#, C++, VB.Net).It was suggested that I handle all the database communication with a VB.Net dll and then call said function from within the C dll. Most of what I've found on the topic of calling managed dll's from unmanaged code has talked about pinvoke or com wrappers and mainly from the perspective of c++.
View 2 RepliesI created a DatePicker user control (ASP code below, no code behind) which is simply a textbox, image button, and a sometimes visible calendar.
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Can I somehow tie or pass the value of the TextBox as the value of the whole control to use in the calling code? EDIT: My actual goal here is to be able to tie the SelectedDate as a parameter of a database query. I was able to select values for the other parameters in a controls dropdown list in a query parameter configuration window.