VS 2008 Lostfocus Event For Picture Box.
Nov 25, 2009[code]I am adding pictureboxes to my form as shown in the code above. but the problem is lostfocus event is not working.
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Why Isn't The LostFocus Event Occurring
Mar 26, 2011With a listbox visible, I have clicked on the windows form hoping to use the listbox.lostfocus event to let me hide the listbox - but the event does not occur. I suppose I can use the form.click event to hide the listbox, but how would I get the form to accept focus?
View 2 RepliesBreak Textbox Lostfocus Event?
Aug 20, 2010the scenario is the following: I have a textbox ,next to it a button. The user types a value in the textbox, he presses tab, I search this value in the database in the LostFocus event, if there is no match, a browse form shows and the user can select the desired value. After closing the browse form, the focus goes to the next textbox control (and exactly this I want to prevent). The user can click the button next to textbox to choose a value (the browser form appears), but in this case, after closing the form, the focus remains on the textbox control, because before clicking the button, the focus was on it.
So, my question: how can I disable the LostFocus event? Ok, I figured it out: I must use the validating event. It works. But in this case, if I close the form, the event fires up. How can I disable this?
LostFocus Event Doesn't Trigger
Apr 27, 2012I have a class library in which i have created a simple new application with a form and added AX webbrowser control on it. In order to apply events on popup of webapplication shown in webbrowser (or to detect whether a pop-up has opend), i am using LostFocus event on webbrowser control, it was working fine till now.But after i reset my IE settings (Internet options->Advance->Reset) the event stopped working. I am using IE9 and the class library is developed in VB.NET (VS 2010).
View 9 RepliesVS 2010 Textbox LostFocus Event?
May 31, 2012I am finding it strange that the lostfocus event is always executed once when I launched my application. in my lostfocus event, I have some code that queries the db based on the textbox value. It is supposed to be 13 characters. So when i launched my app and presses the first character in the textbox, it is givin an error. When i debug the application, I found out that the lostfocus event is getting called once when i start the application.
View 4 RepliesVS 2008 Add Event Handlers To Picture Box?
Aug 1, 2009I created a custom class which creates a PictureBox.
The Class looks like this:
Public Class Layer
Dim pb As New PictureBox
Public Sub New(ByVal parentPB As Panel, ByVal parentContex As ContextMenuStrip)
[Code]....
How do I add event handlers to this picture box?
Does Pressing "Enter" Activate The LostFocus Event Of A Textbox
Jun 28, 2009how to capture the text that a user enters in a textbox when they press the enter key? I thought there was an event that handles this but I can't quite seem to get anything to work.
View 3 RepliesVS 2008 Picture Box Mouse Move Event
May 25, 2011In my project's Main form I have a picture box of size 1024*1024 which occupies almost 75% of my monitor screen. Now I have defined Picture box Mouse movement event with corresponding actions to be done for mouse mouse event over picture box. Now the problem is I have another button on my main form by pressing which an another form of size 520*170 pops up. I have set Me.Topmost property to this form. But even then if by I hover the mouse over picture box, this pop up form disappears (i.e. goes to back screen) and if at all i have to perform any action on this form I need click the Tab of the popped window on the task bar which makes this form visible. Worst case is if the user drags this form on top of the picture box and looses focus, then its impossible to get it(focus) back.
View 3 RepliesVS 2008 Picture Box Double Click Runs Event Twice
Jul 8, 2010I am creating aplication that displays images in many different ways using Picture Boxes. Single page with tabs, double page using fading in/out effect, double page 'page flip' effect and single page auto scroll effect which I have problem with. I am dinamicaly creating picture boxes, loading images, placing 'path' to a file in tag and adding handler to each picture box. All fine...
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Textbox.lostfocus Vb 2008 Exp?
Apr 1, 2010Have a project which, in one place, has a form with a number of textboxes on it to receive user input. My intention is that, when user tabs out of one box into the next in the sequence, a checking subroutine is called via the textbox.lostfocus event. When I run the app, which this procedure is called by tabbing out of, say, txtTitle without entering any data, I get the Msgbox message, but it refers to the next textbox (txtFName).
It would appear that the focus moves into the next textbox before the lostfocus event is dealt with. Consequently, when the Msgbox opens, it takes the focus away from the next textbox and fires its lostfocus even, which is processed. OK-ing the warning here causes the initial lostfocus event to be processed and the Msgbox shows again. Exiting the sub for the second time leaves the focus in the second textbox. If I then use the mouse to move the focus back to the first box, I fire yet another lostfocus event for the second textbox, etc, etc
How can I trap the lostfocus event and deal with it BEFORE the focus moves into a subsequent control?
The relevant piece of code is:
[Code]...
VS 2008 LostFocus Handler For TextBox
Jun 9, 2010So I have a LostFocus handler for my TextBox, and it gets called whenever I press "m", "o", or "-". Why is that? [Code] Is all that's there. I thought that I might have access keys or something interfering, but I would have to be pressing Alt, "-" wouldn't work, and there's also the fact that I have no access keys on the form. What's happening?
View 7 RepliesVS 2008 Error Argument 'picture' Must Be A Picture That Can Be Used As A Icon
May 22, 2009I want to add a .ico to a notifyicon, but i get this message:Argument 'picture' must be a picture that can be used as a Icon?What is the problem? It is a .ico file..
View 8 RepliesAdding Click Event To Picture Box
Apr 26, 2012how to add click event to picture box control?
View 2 RepliesDraw A Line Over A Picture Box Using The Paint Event?
Apr 7, 2011How would I draw a line over a Picture Box using the Paint event? I can draw the lines but they are drawn under the Picture Boxes.
View 6 RepliesVB Panel Paint Event And Picture File
Mar 25, 2010I have a panel in my mainform and need to display a jpg file on it using a paint event. Any suggestion how can i go about doing it. I have to use a menu item to open a folder i.e. OpenDiaolgFolder to open a jpg file.
View 6 RepliesIDE :: Create A Button Click Event That Changes A Label And A Picture?
May 18, 2009I am trying to create a button click event that changes a label and a picture like this.
Private
Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnalb.Click
lbl2.Text = "Montgomery"
PictureBox1.Image. ???
End Sub
There are 4 buttons and 4 pictures, and I added them in a project resource file (resources.resx).I'm not sure how to add the pictures from the picturebox index (?) to the picturebox when one of the buttons is clicked.
Rendering Picture Boxes Mouse Click Event
Jul 5, 2009I have a Windows Form application in VB.net 2008 using a picture box to continuously render the video. I'm not able to get click events on top of the rendered video being displayed within the picture box. If I click to the side (still in the picture box, but where there is no video being rendered) then the click event comes through.
View 1 RepliesAssign Value To A Variable In Lostfocus?
Mar 9, 2012I want to assign a string value to a variable in the DataGridView LostFocus event. I found that I can't just do variable = "string value, it will give me the "Unable to cast object of type 'system.eventargs' to type 'system.windows.forms.datagridviewcelleventargs'" error.
The function created by double-clicking on the datagridview is:
Private Sub DataGridViewInvoice_LostFocus(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridViewInvoice.LostFocus
RichTextBox Lostfocus Isn't Triggering
Dec 12, 2009I have two richtextboxes, richtextbox1 and richtextbox2 on top of richtextbox1 with richtextbox2.visible = false on form load. Whatever is input in richtextbox1 is placed in an array when rictextbox1 loses focus. Now I have a checkbox that when enabled, hides richtextbox1 and shows richtextbox2. On the first time richtextbox2 is shown, i want it to display the contents of richtextbox1. This is achieved by setting a boolean flag (firsttime=true) on form load, then in the checkbox code if firsttime = true, it displays content of richtextbox1 and sets firsttime to false.
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TextAlign In Even Enter And LostFocus?
Feb 23, 2009in VB.net windows From with 2 TextBox Control (in Visual Studio 2008)
property:
name: TextBox1
text: test1
[Code].....
MouseWheel Event In User Control - Works Only After Every Picture Box Was Selected?
Aug 14, 2009I'm developing User Control. It have many picture box and I use MouseWheel event on every picture box. Why MouseWheel event work only after every picture box was selected?
View 6 RepliesVS 2008 Picture Not Found For Picture Box?
Oct 14, 2009I am trying to load a pictue into a picture box by using code but it keeps saying it cannot find the picture. This is what I have
PictureBox1.ImageLocation = "E:100_2838"
PictureBox1.Load()
I go and find the picture on my computer right click on it and find its location and copy and paste it into the .imagelocation adding a and the picture name and every time it says picture cannot be found? I have tried loading it from C: or from my jump drive E:
Richtextbox LostFocus Sync With An Array?
Jan 10, 2010I have some richtextboxes which display contents of a jagged array. When the RTB loses focus, contents of the RTB are placed in the array (so new entries in rtb are updated in the array). This works OK with moderate numbers (for example jagged array of type (200)(){}) but in a situation where the array is (1500)(){} the rtb takes approx 3-4 seconds to reload when it loses focus. I was thinking of eliminating some lostfocus of triggering with this logic
On RTB LostFocus
If 'nothing was changed in the RTB' Then
Return
[code]....
Nothing was changed in the RTB means that the user Focused in the RTB, scrolled around, but did not change the content in any way. How would I achieve that codewise? In addition, is there a better way to keep the RTB updated with it's corresponding jagged array from LostFocus?
Added A Gotfocus And Lostfocus Handler For All Of My Textboxes?
Sep 22, 2008I just added a gotfocus and lostfocus handler for all of my textboxes. Below is my routines to call on gotfocus/lostfocus.
[Code]...
Now, my issue is that this works great if you use the mouse and click around in the textboxes. However, if you hit the TAB key to move around on the screen, the LostFocus event doesn't seem to work. All of my textboxes backcolor remains lightblue. What did I do wrong? What do I need to do to fix this problem?
Implementing LostFocus Listview Control Equivalent For Web?
Apr 11, 2011Background: I have a winForm app that registers a user in the database based on the information provided, auto-generates a random password and username, and e-mails the user a link to take an application based on the marketing company selected.
Problem:
When the user selects the lbCarrier(s), the Bundles don't show up in the listbox b/c the lostfocus feature doesn't work for asp.net. What code can I use to auto-populate the Bundles listbox based on what is selected in lbCarrier listbox for ASP.NET.
Code from default.aspx.vb:
Private Sub lbCarriers_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles lbCarriers.LostFocus
Dim splt() As String
[Code].....
Show The Msgbox All The Times When The Combo Lostfocus
Mar 23, 2009This is a code in event lostFocus:
[Code]....
The code shows the msgbox all the times when the combo lostfocus...
Lostfocus Doesn't Work With System.Windows.Forms.KeyEventArgs?
Apr 20, 2010I 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]......
PictureBox Has An Image Alignment Or Offset Error When Using E.graphics.drawimage In The Picture Boxs' Paint Event?
Apr 17, 2010I have tried to realign the image by down and right one pixel, but still only part of the first row and column are visible when zoomed.I can't find exactly what I'm looking for online.
My computer is an HP-Pavillion dv9600 Notebook PC.
OS: Windows Vista SP2 32-bit
The following code reproduces the problem:
Public Class PictureBug
Dim pxlColor As Color
Dim img As Bitmap = New System.Drawing.Bitmap(My.Resources.TestBug[code]......
VS 2008 Call KeyUp Event From MouseUp Event For A Textbox?
Aug 16, 2010In VB6 we had a code inside textBox_MouseUp to call textBox_KeyUp(-1, 0) and the signature of KeyUp was
Private Sub textBox_KeyUp(ByRef KeyCode As Short, ByRef Shift As Short) Handles textBox.KeyUp
Now when I migrate to .NET I changed the KeyUp event to Private Sub textBox_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles textBox.KeyUp
How can I do this call textBox_KeyUp(-1,0) now from textBox_MouseUp event?
VS 2008 Event Log Query - Extract Each Entry In An Event Log
Mar 23, 2009I have code to extract each entry in an event log. If the entry is after a set date (the value of my startDate variable) then it gets the information from the log and outputs to an email (I can do all this, the bit I am stuck on is as follows) I am currently using the following code extract:
[Code]...