Raising UAC Window Loads Form Twice?
Mar 19, 2012
I am using following code to raise UAC window. It works fine but my form that contains button to raise this window is shown twice. I mean if I put it in CopyFiile Button, when I click this button, it raises UAC windows, copies file, gives success message and then opens another instance of the same form that contains copyfile button.
Dim proc As New ProcessStartInfo
proc.UseShellExecute = True
proc.WorkingDirectory = Environment.CurrentDirectory
[code].....
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Sep 4, 2011
I am starting a Console (3rd party application) with a New Process in vb.net. I simply want to size the window when it loads. All the APIs have not worked, SetWindowPos, MoveWindow, etc... need to work in all versions of Windows. Anybody have solid code that does this?
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Mar 11, 2010
I use the binding navigator in my application, but when the resolution of the display gets to small and I have to use the scrollbars I get a problem. the scrollbars automatically scrolls down below the navigator bar instead of showing it when the window loads.
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Apr 19, 2012
The MyBase.Shown event only gets raised the first time a form gets shown. How do I make something happen every time the form is shown?
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Aug 5, 2010
i have my main child form open. then i show the new form:
[Code]...
but when the form opens it flickers a lot. so i want move the new form behind the main form while it loads so the user does not see the flicker. once it is done loading i will set the form to topmost. how do i move the new form behind the main form?
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Jun 11, 2011
Within the program, there is a button that opens a file inside of a second form ( DocViewFrm ) and it works fine the first time around. Within this new window, there is a button that uses Me.Close() to close the window and return to the main window. Upon the attempt to open this second form a second time, the program crashes on the Me.DocViewFrm.Show() line. The error message reads:
An unhandled exception of type 'System.ObjectDisposedException' occurred in System.Windows.Forms.dll
Additional information: Cannot access a disposed object.
[code].....
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Mar 30, 2011
Problem that you may have when dealing with two objects that are raising some events. Here, to make it obvious, I am closing the form, but the problem can be experienced with any other 2 classes event. First, what is the problem !
Let suppose that by pressing a button, you want to raise a custom event, then execute a method and then close the form
In that case, you may use a code similar to this
Event BeepIt()
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RaiseEvent BeepIt()
[CODE]...
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May 27, 2011
I have this code to add ToolStripMenuItems when my form loads.
Dim i As Integer = 0
Dim stanicastring As String
While i < ListBox1.Items.Count
[Code]....
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Oct 28, 2009
Ive created an application that reads plugins but I can't figure out a way of making a form thats housed in the plugin into an MDI for my existing application.[code]...
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Oct 1, 2008
I want to be able to make labels on the form change with user-entered variables (that they would do before this form appears) and so when this form appears, I want the variables to already be displayed in the labels without them having to press a button, or click on something.
[code]...
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May 22, 2010
[code] how do i apply that to all 30 textboxes when the form loads.
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Sep 1, 2011
i have a datagridview and a textbox when the form loads i want to enter text in the textbox then in column 1 in the grid whenever it is focused i want the text from the textbox1 to appear no matter how many records i enter until the user changes the text for the next lot of records,
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Sep 27, 2010
I have a table Called inventory, one of the columns is a checkbox based column called saved where it stores the checked state as the value 1 on the database. On a related form when i load it i want the datagridview to filter to only show the rows where saved has the value of 1.
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Apr 15, 2012
How do i go about creating an exception handler when i want to login to my form to access the rest of my forms. The username and password are linked to server.What if it doesnt connect to server? here is coding for me to login:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
If (txtUName.Text = "-") Or (txtUName.Text = "0") Or (txtUName.Text = "") Or
[Code]....
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Jan 12, 2011
I wrote this application in VB2008 and it ran for three years without problems(It had one first chance error during that time but ran correctly). I started having problems at the first of this year with a textbox not showing the update for the date code correctly. So I thought that maybe some update to the system had changed and I might need to do some code changes to take into account for these updates.I first tried to convert it to 2010 but the conversion would not operate correctly even though the code showed to be correct.It would jump from one form to another in the middle of a if statement using debug to step through the code. the if statement would just test for a variable to be less than 2 and then be changing the text in a textbox. So I decided that It would take longer to correct the converted application then to just use VB2008.
So I went back to VB2008 and my XP to find out why the date code had quit working. This code had been working correctly for three years.I was thinking some of the code used had become outdated in some way, because a copy of the original source would not run in debug mode correctly. It showed the same problem of not updating the textbox. I stepped through debug and found that it was doing the same thing as the VB2010 version and jumping in the middle of the if statment. So I rewrote the code and used the format string command to build the date code in stead of the seerating out the date into 3 variables using a split statment.This works for the textbox problem and stoped the jumping to a different form. But since I have went back to the original code I have the first chance errors comming up.
I have several first chance exceptions being thrown from debug. This happens when I fisrt start the debug and I have put break points all through the applicatins to try and find the problem I have also enabled debug exceptions Common runtime thrown and it still gives the exceptions but no break point.I have option Strict on. There is no errors or warnings showing after a build. I have cleaned the solution and exausted all my methods of troubleshoooting this problem.The following is what I am recieving while in debug mode in the immediate window.
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.IndexOutOfRangeException' occurred in LABEL MAKER 2 Forms.exe
A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
Now if I run this as a published application I get the same error as the first one on the above list and it gives a error window with continue, exit,and details, if continue is pressed it will allow me to continue and the application runs correctly.The details just say basicly the same as the error with no error number and that the error was in my application.exe. Nethier of these errors will give a break point so that I can find the problem. The problem does not appear to be in my code because this happens before the first form appears.
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Jun 14, 2010
I have a vb.net project in vs2008. When the project loads, one form is always immediately marked as changed before anything has been done to it. This didn't happen in earlier versions of the form. Nor does it happen with any other forms, classes, modules, etc. I have no idea why it is occurring but I am curious.
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Feb 28, 2012
is what I have so far. I have a form that needs to load a file externally and populate the combobox. I can get that part if I use a button, but I don't want to use a button. I want it to populate when the form loads for the first time. The below code does not accomplish this, it doesn't even try to load it. I put break points in this code but it never breaks
Private Sub mortCalMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'sets listview values
[code]......
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Jan 18, 2010
Public Sub ReadSample()
Me.Focus()
Do
Application.DoEvents()
[code]....
When i put:
Private Sub ThinkSec_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ReadSample()
End Sub
The application wont start.But when I put the sub to run when clicking button, it works.Why?I've tried all do until, while, for etc variations to get it correct but i have no success.
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Jan 31, 2012
Invoice Number = Now.Year & Now.Month & ?????
how can i add 5 digits that auto increment when the form loads?
Expected OUTPUT
20120100001
20120100002
[Code]....
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Nov 24, 2009
how to code a form that has 2 text and a tick box. When the user selects the options he needs it keeps the options they selected when the form loads next time round once the user has closed it. My first thought was hold the options in a text file but glad to hear any further ideas on that.
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Aug 16, 2007
I have a problem.I want to set the focus on TextBox1 when the form loads. TextBox1 has a tab index > 1. I put this line in the form load subroutine:TextBox1.Focus()It does not work! However if I make a button and put the above line of code to its click event procedure, then TextBox1 get the focus.
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Jan 10, 2010
I was wondering if there was a way to trim the working set when the main form loads in vb. I know in C# you can use
SetProcessWorkingSetSize(GetCurrentProcess, -1, -1) API call
But I am not quite sure how to implement this in vb. Basically I got an application that is showing 11,000K+ mem usage in the task manager when in actuality it is really only utilizing about 1,000K if that and I want to try and trim the working set to show the actual usage in the task manager rather than what the framework is reserving.
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Jun 13, 2011
On a form load I want the time now + 10 minuets to show in My TimeMaskedTextBox.IE, If the time now is 18:30 I want the TimeMaskedTextBox to show 18:40 the code below does not work can you please help?
TimeMaskedTextBox.Text = DateTime.Now.ToString("HH:mm" + "00:10")
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May 10, 2012
if i want to make a change to a cell in a datagridview when the form loads, how would i go about doing this?
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Nov 27, 2009
I am having a problem in Form_Load. When the following code executes the form pops up with out executing any further code: Me.TblAssetsTableAdapter.Fill(Me.ITP400_IP3_ADataSet.tblAssets).
I am trying to use Form_Load to populate values in a ListBox control from an Access database table.It appears the problem was in the Compile settings. It was the 'old' problem of using AnyCPU on an x64 machine. I changed the Compile setting to x86 and the problem disappeared.
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Apr 19, 2009
How to play an audio file automatically when form loads?
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Jul 15, 2010
I am trying to get a label to show briefly (3 seconds) when the form loads. The following code gives the 3 seconds, but the label doesn't show. The label is set to visible in the Designer properties.
'hide label1 after 3 seconds
Threading.Thread.Sleep(3000)
Label1.Visible = False
Adding 'Label1.Visible = True before the sleep function doesn't help.
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Aug 10, 2009
Put a picturebox1 on a form2, and paste the following into form2 public class. When you run it you will see nothing untill you force a paint event by mouse dragging the form half off the screen. If you minimize - then maximise - the image dissappears and the picturebox1 does not repaint itself??? I want the picturebox1 to be "auto drawn" somehow.
Public
Class Form2
Dim colr As System.Drawing.Color
Dim grfx As System.Drawing.Graphics
[code]....
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Jan 2, 2012
The first column in my Data Grid is actually not my first column. It has an arrow pointed to the first row and then the last row has an asterisk by it. Is there anyway to make this column not show every time my form loads?
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Apr 14, 2009
I have looked through the properties control but could not seem to find the option which let me to display the item in a combobox when form loads. I don't want to leave it empty when form loads.
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