Windows.Forms.Cursor.Show() Doesn't Work?
Sep 8, 2010
I have a test app driven by bluetooth serial events In my form load code I hide the cursor so it doesn't get in the way of pictures (fullscreen) When one event is called by bluetooth, it brings up a msgbox and the user has to click OK. I tried Windows.Forms.Cursor.Show() but it doesn't work.
I'm guessing it's something to do with delegates and events and the form, but the debugger doesn't complain at any point. It just refuses to show the cursor. How can I get my serialport event to show the cursor? And then hide it after?
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Apr 20, 2010
I have the following code and I can't get the lost focus to work.
Private Sub txtSpeed_KeyDown(ByVal eventSender As System.Object, ByVal eventArgs As System.Windows.Forms.KeyEventArgs) Handles txtSpeed.KeyDown, txtSpeed.LostFocus
[code]......
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Oct 7, 2009
I have a user control that contains a search value text box a button, and a datagridview to display what the data adapter found. In the data set designer, I have an ODBC connection to a table, with two SQL queries defined FillByCustomerName(NAME), and FillByCustomerNumber(CUSTOMER_NUMBER). If I preview the data in the designer, I see the data expected. The datagridview doesn't show any data. The functions PopulateGridByName and PopulateGridByNumber do the work. I've tried adding a dgCustomer.show statement, The form that calls the user control has no codebehind code, and throws no errors.
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
Try
Dim SearchValue As String = CreateSearchValue()
[Code].....
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Jun 12, 2011
I am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
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Mar 20, 2011
I have an issue with my .NET application and it can only be reproduced sometimes and only on client's location, which makes it extremely difficult to resolve. In the application the forms authentication is used. There is a login page to which every anonymous user is redirected. After user enters username and password, it redirects to DefaultURL or some predefined page. The problem is that sometimes when user enters correct username and password, it doesn't login, instead it just refreshes the login page without any error messages. After several tries of inputing username and password, user is able to login to the system.
See my login page Submit_Click code below:
Dim userName As String = tbUsername.Text
Dim password As String = tbPassword.Text
Dim returnUrl As String = Request("returnUrl")
[code]....
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Feb 12, 2010
A VB routine assembles a string of email addresses. It is sent to the clipboard with
Clipboard.Clear
Clipboard.SetText Atext
Where Atext is the address string The email client is opened with
lRet = ShellExecute(hWnd, "open", "Mailto:", vbNull, vbNull, SW_SHOWNORMAL)
At this point, when the email client is Outlook, the clipboard doesn't show what was added to the Windows clipboard above regardless of whether we use a left click in the BCC box or a CTRL-V.
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Jan 26, 2009
I've developed a small windows form application in Visual Studio 2005. I have tested the application on a completely fresh install of Vista 32-bit as well as Vista 64-bit and it works fine... But when I copy the application onto an XP machine the following problems occur:The application no longer has its icon, just the default .exe console box icon
Whenever I try to open the application, absolutely nothing happens
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Mar 9, 2010
I have a listviewsorter that does work on Windows 2000, Windows Vista and Windows 7 (and maybe others), but it doesn't on Windows XP.
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Feb 28, 2011
I've created a windows service which must produce a beep every 0.5 seconds.
I've installed and started that. but nothing happends.
what should I do?this is my service:[URL]...
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Jul 29, 2010
This Module doesn't work on Windows 7 x64.What I should change?The module is : Runpe.
vb.net
Imports System.Runtime.InteropServices
Imports System.ComponentModel
Public Class rp
[Code]...
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May 14, 2010
I'm writing a Windows Service:
Code:
Public Class Service1
Protected Overrides Sub OnStart(ByVal args() As String)
System.Diagnostics.Debugger.Break()
[Code].....
I've installed the service, I can run it with no errors but... I can't debug!
I thought that with the line System.Diagnostics.Debugger.Break()
the service should stop and wait for my input. But NO!
I also tried to click on Tools > Attach process to debug but I can't see anything, just a gray background!
In the registry event it's written that the process started successfully, but the process doesn't show me the message box "Up and running"
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Jan 19, 2012
I have a form created in VB.net. It is used to get some information form a user. The form is not bound to any data source.
A combobox on this form is used to enter a cost. I want the value entered by the user to be displayed using currency format. I have used the Format String Dialog that opens from the ellipses button on the FormatString property of the combobox and selected Currency. This put C2 into the FormatString property.
When I run my application, this format is not applied to the value entered into the combobox at the time the number is entered or when I leave the combobox.
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Apr 3, 2012
I am currently making a game with multiple levels when you complete one level the form hides and shows the form for the next level. But the keydown event doesnt work on the second level. How can I make it work?
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Nov 5, 2009
Visual Studio 2005 SP1cr10 developer also installedOn XP machine, works fine. Got a Windows 7 machine(64bit and all) and copy over the project, run it and can't, I get an error in each crystal report gets an error [code]I take these lines out, and no more error for the report. Since there are like 40 reports in a project and there's 5 different projects that would have to be altered, this will be a pain. And I'm not the only developer. Another developer, on Vista and another will be coming in on XP, don't have this issue. I've tried uninstalling everything Cr and visual studio, then reinstalled visual studio and ran it, same thing, then installed SP1, same thing, then updated security fixes, same thing. CR10 isn't installed. I've removed and added the references back ,they seem to be the exact same versions.
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Jul 9, 2010
I have a basic three form application. It doesn't seem to close after navigating through forms. If I were to open the application, and the main form is displayed. If I press the X button, the application closes fine(Goes from processes) If I were to open the application, and then navigate from the main form to another form using me.hide & form1.show, and press the red X on Form1, the application again, closes fine.
[Code]...
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Mar 12, 2012
I'm having trouble getting this sub to work on Windows 2003. It works on Windows XP and Windows 7. Windows 2003 has "wininet.dll".
change_proxy("123.115.112.222:3128")
*********************************
Public Sub change_proxy(ByRef proxy_port As String)
[Code].....
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Oct 14, 2011
I am trying to SendMessage to an app called 'Signal threads' - a test app which sends out a message called TV1_Threads, and listens for a reply. I have shown the values of each variable in the commented areas.
[Code]...
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Mar 15, 2010
I was looking for a solution to run a lengthy job (looking for files on the fixed drives) withouth freezing the UI, and saw that using a BackGroundWorker control is the recommended solution.
Problem is, I don't see its ProgressChange event being triggered:
Imports System.IO Imports System.Text.RegularExpressions
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Button1.Enabled = False
[Code]...
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Nov 30, 2007
I have a MDI form that has a child form that is opened by default when the application loads. I also automatically maximize the child form. Even though I have set ShowIcon to false, the little blank image that indicates that there is no icon appears in the upper left hand corner of the form. Is there a way to get rid of this?
Private WithEvents m_frmLineItems As frmLineItems
m_frmLineItems = New frmLineItems(Me)
mfrmLineItems.WindowState = FormWindowState.Maximized
[code].....
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May 15, 2012
I have one tool which we developed on visual studio 2010. there are basically two parts of my project, one is UI part which i wrote in VB and algorithm part which is in C++ on back end. When we compile C++ part it creates a .dll which is used by my front end VB program.
Now my problem is little weird since i am compiling and deploying this tool on windows xp machine but some of the users are using windows 7 64 bit machines and after running the program for about 5-10 minutes, it crashes on windows 7 with following error
Not enough storage is available to process this command and when i view details of that error, i get the following description.
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.ComponentModel.
************** Loaded Assemblies **************
mscorlib
[Code].....
i am completely clue less for this error since this program works fine on xp but doesn't work on windows 7.
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Jun 29, 2011
my windows forms printdialog doesn't appear when i call showdialog.[code]
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Oct 26, 2011
I have created a custom designer (PannelloSfondoDesigner) for my custom control, a background panel (PannelloSfondo).
<Designer(GetType(PannelloSfondo.PannelloSfondoDesigner))>
Public Class PannelloSfondo
Inherits UserControl
[code]....
It works, I click the little arrow, the context menu appears:I click the menu item, the event is fired, the control is docked:but the menu description is not updated or refreshed (it should show "Undock from parent container"). Then if I click outside the control to deselect it and then I click back on the arrow to show the menu, the right menu item is displayed:How do I refresh the menu items?
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Aug 5, 2009
Add a new report to a windows forms project. Now add the table data region from the tools. If you don't already have a strongly typed dataset displayed in the data sources view, get that ready. Now do the tried and true easy-to-use trick of dragging a field from data sources onto the table's details row.
[Code]...
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Feb 16, 2011
This VS010 solution is not providing my intended outcome as a custom override of a 'crosshair' or 'reticle' cursor e.Graphics.DrawPath() is the function that isn't working. This
WORKING solution demonstrates how it's supposed to work. The additonal PictureBox added to a Panel is, for reasons I don't understand, not allowing the 'new' cursor to appear.
Option Explicit On
Option Strict On
Imports System.Drawing
[Code]....
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Jan 13, 2010
I'm working on a simple base form in which all the other forms in the project will inherit. This base form only adds 5 properties (at the moment) dealing with painting a gradient background. The problem I'm facing right now is when I change a property on Form1 (the test form) and click run it doesn't show that change. I also checked the .designer.vb file and when I make a change it's not added to the code behind file, I'm at a loss right now to why.
[Code]...
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Mar 14, 2010
When trying to compile my newly created ClassLibrary class 'Validator' that validates entries made into TextBoxs or MaskedTextBoxs, I get the following error:
Warning 1 Namespace or type specified in the Imports 'System.Windows.Forms' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases. C:Users erryDocumentsVisual Studio 2008ProjectsMillerClassLibMillerClassLibValidator.vb 1 9 MillerClassLib.
Following is the first part of code in the class:
Imports
System.Windows.Forms
Public
Class Validator
[code]....
What can I do to resolve this problem? The classes in this class library will be used to validate forms data input in a number of varied projects.
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Feb 2, 2011
I have an application that requires data be entered, and after entering, a button is clicked to process that data. Clicking the button works just as it should--the data is processed properly. In constructing a test module, I provide a set of data values, followed by:
btnWhatever.PerformClick()
Nothing happens. I have used this syntax for years, and it has always worked flawlessly. I have triple checked everything else and isolated the problem to the failure of the PerformClick(). The PerformClick() is in a test subroutine that does nothing but fill textboxes and labels with default data, then calls the PerformClick() on the button to begin processing. Again, the button works fine, the data is entered as it should be, but the PerformClick() does not fire the click event.
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Aug 23, 2009
public sub show(as owner system.windows.forms.iwin32window) error
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Feb 12, 2011
bind to a database column and show the value in a separate linklabel1 or Listbox control in windows forms.
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Jun 1, 2010
I have a form that asks the user for certain search criteria. Based on this it goes and searches Active Directory for computer accounts. Whilst this search is happening I want the cursor to change to the hourglass but I've tried
Application.WaitCursor=true
Me.Cursor=Cursors.WaitCursor
me.UseWaitCursor=True
Nothing works. The cursor stays firmly as the default cursor.This is the code that calls the form
Dim inputform As New MachineSearchInputForm
If inputform.ShowDialog = System.Windows.Forms.DialogResult.OK Then
Dim PropertiesToLoad As String() = New String() {"name", "distinguishedname", "objectclass"}
[code]....
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