How To Get A Datarow From Datagrid On Mouse Leave Event
Aug 26, 2010i have a datagridview with records, when i select a row in datagrid i need to display the values in a textbox. please help me with sample code
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Mouseevent :: Mouse.Enter And Mouse.Leave Both Called In Same Event?
Jun 19, 2012In my VB.Net forms application, I have a function:
Private Sub pnlMain_MouseLeave(sender As Object, e As System.EventArgs) Handles pnlMain.MouseLeave
...
[code].....
Why The Mouse_Leave Event Fires When Don't Leave The Control With The Mouse Pointer In This Situation
Jun 11, 2011Anyone know why the Mouse_Leave event fires when you don't leave the control with the mouse pointer?Put a large button on a Form so your mouse pointer does not leave it easily.Then try this codeWhen you do, leave the mouse pointer in the middle of the button and then click the button.By the way, if you uncomment the 1st line of code in the Button Click event and comment out the MessageBox, this does not happen.Can someone please explain this behaviour?
Option Strict On
Option Explicit On
Option Infer Off
[code].....
Mouse Hover And Mouse Leave To Open And Close The Window Form
Nov 5, 2009how to raise the mouse leave and mouse hover events for VB when i place my mouse cursor over the button.
When my mouse cursor is over the buttons, it will raise the mouse hover event and open the form, then when the mouse leaves the button, it will close the form upon raising the mouse leave event.
but currently, When i excute this two events, the for will open and close very,very fast. so fast that it is like spamming the VB.
So i am wondering how to change the code that i have to excecute the event one time every time the mouse is over the button which is created at run time.
the codes to execute these two events are:
Private Sub Button_MouseLeave(ByVal sender As System.Object, ByVal e As System.EventArgs)
For Each ctl As Control In PictureBox1.Controls
[Code].....
Mouse Hover And Mouse Leave To Open And Close The Window Form?
Nov 12, 2009[URL] I have tried heslacher's method which is Hi clzanas, you problems had been the result of calling a for each loop inside the events. If you only want for the button you hoover / leave to call the ShowDetails.Open/close, then you can take the code below:
Private Sub Button_MouseLeave(ByVal sender As System.Object, ByVal e As System.EventArgs)
If TypeOf sender Is Button Then
ShowDetails.Close()
[code]....
But i got the same results as my previous code, resulting in the form opening and closing so fast that it is like spamming the window.
Mouse Over & Mouse Leave For Label1?
Apr 13, 2011im having a label displaying a text, if i click on it it will act like a link label but without that fancy formating, what i want to do is whenever the user has the mouse arrow over the label, the label changes color, is such thing possible?I want that for only 4 specific labels, nothing else is important, so is there a simple way to achieve that? like something similar to:
View 5 RepliesLEAVE Event And LOST FOCUS Event When Entering Data
Feb 9, 2011I have a Visual Basic Program that, when I enter data into a textbox, uses LEAVE events to update it. However, it will not update until I go to another textbox or press a button or other similar control.This also happens when using the LOST FOCUS event.How can I make the textbox update (be it doing a financial recalculation or some other custom function) happen when the user clicks/tabs out of the textbox and NOT having to click on a button or into another textbox?Do you recommend having a separate button for performing the custom functions?
View 6 RepliesVS 2005 Text Box Leave Event And Button Click Event?
Jun 30, 2009Can i Know how to catch between these 2 event, Leave and Click?
I have one checking in a textbox Leave event. I will go check whether this ID is already exist in DB or not. If exist, I will prompt MSG box to user.
When I click on Close button while focus is on textbox, this textbox Leave Event will trigger first before Button Click event.
So, the form remains open without trigger Button Click event.
how to prevent this textbox leave event or how can i catch/control this situation?
Allow The Cursor To Leave The Form, Even When The Mouse Moves?
Sep 29, 2009I'm creating an app where I don't want to allow the cursor to leave the form, even when the mouse moves.Would it be something to type into pongMain_MouseLeave ? Something like Cursor.Stop () is all I
View 2 RepliesVS 2010 Error In Mouse Hover/Leave
Feb 18, 2012I have two comboxes inside a panel and have the following code which generates an error "Object reference not set to an instance of an object." on the line marked with *****
Private Sub cboJob_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles cboJob1.MouseHover, cboJob2.MouseLeave
[Code].....
Forms :: How To Capture Mouse Enter / Leave Commands
Nov 21, 2009I want to have a counter that measures when a mouse enters/leaves a form. To that extent I used the .mouseenter/.mouseleave commands. This works to an extent. The problem is that moving the mouse over any controls inside a form count as existing it- I don't want this. Is there a way to define the controls as a part of the form? Meaning- if the mouse was over one of my labels- it would count as being within the form. A less elegant way to measure form access could be to use the form positioning, and define capture any mouse movement within it.
View 1 RepliesMaking A Panel Side Out When Mouse_hover And In When Mouse Leave?
Aug 29, 2009I need help making a panel side out when mouse_hover and in when mouse leave.
I have a a button on there. And when i go to click the button the panel goes back to, width 3.
Process Mouse Enter/leave At The Form Level?
Jul 18, 2012I have a form that consists of only a TableLayoutPanel (which fills the entire form) containing a vertical stack of buttons. The resulting app is used in conjunction with another app. What I would like is to have the vb app do something when the mouse enters the form. Unfortunately, all mouse enter/leave events are trapped by the panel or the buttons.
As a quick test I created a form with a tablelayoutpanel (docked to fill the form) containing one button. I added the following code:
Private Sub Form1_MouseEnter(sender As System.Object, e As System.EventArgs) Handles
[code].....
Sql Server - Get An Error When Leave Datagrid Cell Value As Null?
Nov 25, 2011I get a 'Conversion from type DBNull to String is not valid' error when I proceed to insert the row with a null cell value from my program to MS Sql Server even if the column is already set to accept null values in the database. How do I solve this? FYI I'm using an unbound datagrid, and I get all the screen values during runtime.
Property SerialNo()
Get
Return strSerialNo [code]...
Mouse.Click And Mouse.MouseDown - Delay The Mouse Down Event
Apr 15, 2012I have two custom action listers. One that handles Mouse.Click and one that handles Mouse.MouseDown. My question to you is, can I delay the mouse down event so that it does not intefere with the code of the Mouse.Click event? I have tried adding a timer and waiting x amount then setting a bool value to true, but the code executes to fast and it skips the other code.
View 6 RepliesForms :: How To Bypass A Leave Event
Jan 30, 2009I'm programming something and I have it set to where if you leave the text box blank then a message box comes up and tells you to enter a value to move on to the next text box [code]Now whats currently happening is if I click the exit button and leave the name text box blank the error i programmed will come up and tell me to enter a name. I want to be able to click the exit button while no text is entered in the name text box bypassing the error message.
View 5 RepliesHooking In TextBox Leave Event
Aug 23, 2010I have been working in an Migration Application where i find out some weird problem , Leave Event Fires twice causing validation to fire twice , hence i want to intercept the events to be processed by application..Hence require help in hooking the delegates so that i can get a list of the events that are to be processed .If anybody can help me out by giving some info or code as how to implement hooking in a textbox leave event/
View 1 RepliesHow To Disable Textbox.leave Event
Jul 25, 2010I used textbox.leave so that when user leave the textbox, it will fire a function.
Under some cases, I would like to disable this textbox.leave event.
Shared Leave Event - Determine The Name And Value?
Nov 24, 2011I am working on a new assignment. Our instructor wants us to code a shared leave event for three textboxes (txtBox1, txtBox2, txtBox3).I understand how to code the shared event and how to make a generic tbox for it:
Private Sub txtDescription_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtBox1.Leave, txtBox2.Leave, txtBox3.Leave
'generic textbox
Dim txtText As TextBox
txtText = CType(sender, TextBox)
We are told that if the generic textbox contains data and the data has been modified (against the database record), we need to : Determine the name (name property) of the textbox that casued the evend and Determine the value (text property) of that textbox.I know to check to see if anything is in the generic box by the length property, and if it is modified by the modified method, but how do you determine the name and value? Is it a case statement?
VS 2010 Combobox Leave Event ?
Jun 17, 2012I have some validation set on my combobox and it works as it should, but the problem I have is that the user is unable to click on the exit button, or click on the X to close the form until they have entered a valid field - would it be possible to exclude these controls from the validation? So the user can click on exit, or click on the X?
My coding is:
Private Sub Combobox1_Leave(sender As Object, e As System.EventArgs) Handles Combobox1.Leave
If Not Combobox1.Items.Contains(Combobox1.Text) Then
[CODE]...
Add New Rows In Datagridview When Cell Leave Event?
Jun 2, 2011I want to add a new rows when cell leave event occurs.It shows error like Operation can not be performed in this event handler...
here is my code,
If PatientDataGridView.CurrentCell.ColumnIndex = 2 Then
PatientDataGridView.Rows.Add()
End If
Last Activate Control - Event Leave Calls Another Sub?
Nov 30, 2010MSDN brings nothing up, so here was my attempt at a work around.
[code]...
Because event leave calls another sub i need the last active control. I have the textbox name txtTime{0} but obviously string is not a control.
So Two questions:
1) can a string value be attached to an existing control if i know it's name? Dim attControl as Control = newTime
2) All this could be avoided in event leave if i could get the left controls name. I have tried sender. tostring etc but nothing returns the textboxs name
T1 Leave Event Is Entered, Focus Being On The Listbox?
Mar 28, 2010There are 2 non-modal windows displayed- 1]Form1 contains a Listbox with a list of forms 2]Form2 is the form which is selected in that list Form2 consists of a Maskedtextbox T1. In the Leave event of T1, the validation of text is done. If the data is invalid, a suitable Messagebox is displayed and Focus is set back to that Maskedtextbox (T1.Focus()).Now, if I enter any invalid data and click on the Listbox in Form1, the following things happen:
1]T1 Leave event is entered, focus being on the Listbox
2]Invalid data message box is displayed
3]Focus is set to T1(T1.Focus()) of Form2
4]After End of event, T1 Leave event is again entered. And now, Focus has changed back again to the Listbox.
5]Again Messagebox is displayed and T1.Focus() is done
The issue is, after step 3(focus set to T1), the focus is reset to the Listbox in Form1. Hence Leave event is entered twice and messagebox is displayed twice.
Leave Event Used With TextChanged To Capture New IPAddress Text Value?
Dec 15, 2010I have a TextBox control being used to capture an IPAddress from the user.I want to be able to allow them to change that IPAddres at which point the new value will be utilized by the appropriate .NET socket class to ping that new address.What other event is used with TextChanged to indicate that the user is done making changes to the TextBox. The Leave Event?
View 3 RepliesIDE :: Windows Forms Control Leave Event Fires More Than Once?
Jul 11, 2009The leave event fires twice in this example. Tab order for the form controls is set to combobox1, button1, button3 Private Sub ComboBox1_Leave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.Leave
[Code]...
if I enter 'A' in the combobox1 then combobox1 leave event will fire twice any other entry is Ok since the next control to get focus is button2 (in the normal tab order).It seems that if I try to skip the next control (based on the tab order set for the form), the leave event fires twice.
VS 2008 - Handle Leave Event For Multiple Textboxes
Aug 23, 2011Is there another way to handle the leave event of multiple textboxes other then coding in each event handler? I may not be using correct terms instead of doing this: (Existing)
Private Sub leveladjstvaltxt_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles leveladjstvaltxt.Leave
If Me.leveladjstvaltxt.Text <> "" Then
Dim levels As Integer = CInt(Me.leveladjstvaltxt.Text)
Me.leveladjstvaltxt.Text = Format(levels, "#,###")
I have 30 TextBoxes all need same formatting , so I was trying to come up with something like this: (trying)
For Each ctrl As Control In Me.Controls
If TypeOf ctrl Is TextBox And ctrl.Text <> "" Then
Dim val As Double = CDbl(ctrl.Text)
CType(ctrl, TextBox).Text = Format(val, "#,###")
End If
I am stuck though and don't know where I would place that code if this is something that is even possible. Only thing I can currently think of is in the leave event which defeats the purpose, I wanted to avoid having to place the code in 30 different textoxes leave event.
Interface And Graphics :: MouseLeave Event Detect Left Leave?
Oct 8, 2009Is it possible to detect a mouse leave to the left. For example: I have a label and when I hover over it the text changes to "Hovering", and when I leave the label from the left I want the text to change to "Exit left" or if I leave the label from the right that text changes to "Exit right".
View 1 RepliesForms :: Two Event Methods - Mouse Click And Mouse Down For A Single Button In A Form
Feb 1, 2009I am new to VB.NET, Now i'm working with Events in VB.NET, I have two event methods, Mouse Click and Mouse Down for a single button in a form, I have displyed a message in each of these methods but only mouse down event is triggered. Why Mouse Click is not triggered? Similiarly I Did the same for Mouse Enter and Mouse Move for a particular button, in this case both the events are triggered.
View 2 RepliesDifference In Mouse Hover And Mouse Enter Event In Regard Of .net?
Mar 27, 2011I have two questions in my mind!
1) What's the difference in mouse hover and mouse enter event in regard of vb.net?
2) Is embedding a resource in application more efficient or linking it on compile time?
Catch The New Added Datarow Event?
Feb 21, 2010How do I catch the new added datarow event? I'm using a dataset and bindingsource. I've tested Bindingsource's ListChanged event but it is a bit problematic. For example when I use those codes in the ListChanged event:
If e.ListChangedType = System.ComponentModel.ListChangedType.ItemAdded Then
MessageBox.Show("Record was added..."
End If
... records are added twice. If there is an another event for it?