.net - Set Mouse Pointer Location To The Selected Item In A Combo Box?

Feb 10, 2012

I have a combobox that drops up instead of down. I'm setting the selected item to the one on top of the list. I'd like to move my mouse pointer to point to it, so that the user that wants to click on that item doesn't have to move his mouse. I found how to move the pointer, it is with this command:

Windows.Forms.Cursor.Position = New System.Drawing.Point(x,y)

but I need to know how to get the location of the selected item in the combobox.

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Panel Location Where Mouse Pointer Points?

Oct 15, 2011

I would like to know how can i change the panel location where my pointer points?

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Which Mouse Pointer Is Selected

Aug 25, 2010

I want to know which mouse pointer is selected anywhere in windows (so also outside my application).

I've looked into Cursor.Current but I can't figure it out. Perhaps someone here can tell me how it's done?

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Forms :: Selected Item In Combo Box Will Not Appear In Another Combo Box?

May 27, 2011

how do i program by saying if a certain item is selected in a combo box then that item will not appear in a second combo box. i have this code for now but it does not work

[Code]...

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Selected Item In Combo Box Will Not Appear In Another Combo Box?

May 27, 2011

how do i program by saying if a certain item is selected in a combo box then that item will not appear in a second combo box i have this code for now but it does not work

j = 0
Do While j < cmbSession.Items.Count
If (j <> lesson) Then

[code].....

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Using Selected Item In Combo Box?

Mar 11, 2010

i need to use the selected item in combo box when user selects for example GREEN from be drop down list after than i need to put that green into the rest of my code, i need to draw a line in green but i dont know how to tell the program to use Green i tried setting up a variable for that, like : Dim rang as string = cmbcolor.selecteditem but it doesn't work

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Fill With The Selected Item From The Combo Box?

May 9, 2011

I ahve a combox (cbnames) on a login form which is populated with items. I make a selection and click on ok. Form1 appears and I have a textbox which I want to fill with the selected item from the combo box.

However, on form1 (view code) I don't appear to see cbnames. cbnames is available on the login form. How do i make a combobox public? or accessible to other forms?

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Determine And Obtain The Value Of The Item That Has Been Selected In The Combo Box?

Apr 1, 2011

I am having difficulty using the selected value of the combobox while calling it from the ok button click event procedure. While debugging in the Ok button coding none of the values are their, but for the comboxbox coding it appears that it is working properly.I made a seperate funciton to handle the combobox, could this be my error?
ComboBox

Public Function choosepipecomboboxcoding(ByVal cboChoosePipe As Object,
ByVal HDPE As Double,
ByVal PVC As Double,

[code].....

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Why Timer Stops For 1st Selected Item In Combo Box

Apr 26, 2009

Visual Basic Express Edition 2008 Problem. I have a Combo Box containing Country Names "New York" & "New Zealand", when "New York" is selected it shows the time and date of New York in label1 on the form and the time is updated every second by the timer, but when I make another selection by selecting New Zealand in the combox dropdown list then New York's time updation is stopped in label 1 and only New Zealand's time is updated in label 2. Why the timer control stops functioning for the first selection after we make a second selection in the combo box. I want that time for both label 1 country as well as label 2 country updates simultaneously on the form. My code is as follows:I have added 2 label controls and one combo box control on the form and following code.[code]Can any one advice me how all countries selected in the combo box one after other are dispplayed with updated time every second?

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Find Out Wherer A Mouse Button Is Pressed When Mouse Pointer Is Leaving A UIElement?

Apr 6, 2011

I've been working on a GUI in WPF which I'm fairly new to, having only used Windows Forms up until now. So far, my GUI is very simple: it contains two rectangles, each of which drops a shadow. The shadow creates an effect of rectangles "floating above the canvas" so to speak.

When one of the rectangles is pressed, the myRectangle.MouseDown event is handled such that the shadow goes away, thus creating an effect of the rectangle being pressed down onto the canvas, like a button.Similarly, when mouse button is released, the myRectangle.MouseDown event is handled such that the shadow reappears and the rectangle "floats" again. This behavior make them resemble buttons. Note, there a reasons I want them to be rectangles and not custom buttons.

[Code]...

If the pointer leaves a rectangle while mouse button is pressed, I'd like shadow to reappear. This is arguable simple, because theoretically in this case, any time myRectangle.MouseLeave is raised, the shadow should come back on, even if it was already there.If the pointer left a rectangle when mouse button was pressed, then came back while before the button was released, I want the shadow to disappear again. This one is what gives me problems. No idea how to do this.

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Combo Box Selected Item Is Null - Assign An Empty String To It Instead?

Dec 9, 2011

I have a property called ReplacementTo and I set a value to it based on the selecteditem from the combobox, like this:

classEquipmentItem.ReplacementTo = cmbReplcmnt.SelectedItem.ToString

Now I can't use cmbReplcmnt.Text because what I actually need is the value of that SelectedItem

So problem is, if the user leaves the combobox as blank, it throws a null exception.I decided to use the IIf function then:classEquipmentItem.ReplacementTo = IIf(IsNothing(cmbReplcmnt.SelectedItem.ToString), classEquipmentItem.ReplacementTo = "", cmbReplcmnt.SelectedItem.ToString)

Unfortunately I still get the error I tried using a Try-Catch for it and it worked, but I don't want to rely on the Try-Catch, so I was wondering is there a another way to work this through?

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Gradient Background Of Listbox Selected Item On Mouse Click?

Oct 31, 2009

[code].....

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Mouse Cursor Is Hiding Until Item Selected From Dropdown List

Jun 8, 2012

VB.NET Winforms Application... When a user starts typing in the search box of the application it automatically populates the name list dropdown box with the valid results and sets the droppeddown value to true... Everything is working fine except the fact that the user is forced to select a value from the name list or press the esc key because without doing so the mouse cursor just disappears and you have to move the mouse all the way outside the application for it to come back and it will only do so while outside the applicaiton.. Below is the code that I am using for this and it should be noted that I am using the droppeddown value else where in the application and none of those instances have an issue its only this one..

Private Sub u_lastName_Box_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles u_lastName_Box.TextChanged
u_nameLook_Box.Items.Clear()

[Code]....

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My Program Isn't Selected The Right Item That Click On - Allows A User To View A List Of Foods In A Combo Box

May 1, 2012

I am creating a program that allows a user to view a list of foods in a combo box, add that food unto a list box, and adds all of the calories of that food together. When the user highlights their select food, the program automatically shows the amount of calories for that particular food in a text box. The program is getting the food and calorie information from an access database. I managed to get all of the food calories to add up properly, however, I ran into a problem. Sometimes, well, most of the time, when I select certain foods from the combo box, the program automatically reselects another random food, usually a food that begins with either an A, B, or C. Also, the other random food that the program chooses usually has the same amount of calories as the food I originally wanted to choose. I have over 6,000 items in the database. I don't understand why this is happening. This is what my code looks like for the button that adds each food to the list box:

Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
Foods_Selected.Items.Add(ComboBox1.Text)

Static i As Single

[CODE]...

And this is what my code looks like for the button that adds all of the foods together:

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click

Dim x As Single
Dim TotalCalories As Single

[CODE]...

I have no idea what to try. It's like the program just skips over random foods, even though all of the information for them is in the database.

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Mouse Pointer As Icon?

Feb 20, 2012

How do I change my mouse cursor/icon to use a image or icon. I want to make a simple "wack a mole" type game but I dont know how to change the pointer to a icon or at least get a image to follow the pointer.

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Wpf :: Hide Mouse Pointer?

May 13, 2011

I am attempting to hide the mouse pointer when there has been a few seconds of inactivity and then re-show the pointer again when the user moves the mouse. I have been able to get the mouse pointer to hide and re-show as I require it, however when I execute grid.Children.Clear() and grid.Children.Add() the mouse pointer re-appears (but again hides after a few seconds of inactivity).

My code is as below:
Private Sub Window1_MouseMoved(ByVal sender As Object, ByVal e As MouseEventArgs) Handles MyBase.MouseMove

[code]....

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Change Mouse Pointer On Timer_Tick?

Feb 26, 2009

Change mouse pointer on Timer_Tick? [code]...

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Image Follow Mouse Pointer?

Apr 17, 2012

i want to make a custom mouse cursor but I found that can be hard so I want to go the next best route. I want to see how you make an image follow the mouse pointer. I assume it would use some kind of image = mousepinter new point (x, y) or somethign like that. Suggestions or samples? In the end i want to take this code snippet and make a duck hunt game and a whack a mole type game

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Capture Screen Without Locking The Mouse Pointer?

Aug 1, 2010

Any one know an alternative way to draw the screen to a bitmap without using the copy screen function.Trying to avoid locking up the mouse pointer.

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Mouse Pointer At Form Border Style?

Apr 19, 2010

I have a problem in a vb.net windows application.I have a form with Sizable form border style. but i want to resize it only from TOP & BOTTOM. I have done the code for this.

But when i move the mouse on form's RIGHT & LEFT border, the mouse pointer gets changed to resize mode. When i drag it form size does not change. but when i try to resize it from LEFT whole form moved to LEFT. I do not need it.

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Move The Mouse Pointer To A Certain Position On The Screen?

Aug 11, 2010

I'm trying to move the mouse pointer to a certain position on the screen.I've done the declarations for both the SetCursorPos as well as the mouse_event, however I keep getting a Declaration expected error at this line: SetCursorPos(x,y),Perhaps something is wrong with the project or vb as well, cause I used an other declaration as well and when I wanted to use that I also got a Declaration expected error.[code]....

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Determine Control Under Mouse Pointer With Context Menu

Mar 27, 2012

I have a program that has two list boxes. I want to have the user right click either listbox and remove an item using the context menu option. I have tried to use GetChildAtPoint (control.mouseposition) but I cannot return a control the mouse is over. I then tried to use the _Click event of the context menu to get the sender, but the sender is the contextmenu control. Here is the code I am using:

Dim ctrl As Control = Me.GetChildAtPoint(Control.MousePosition)
If ctrl Is Nothing Then
Exit Sub

[Code]....

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Show Some Label When Mouse Pointer Passing At Some Area

Apr 6, 2009

i'm writing an application that using a picture-box (raster image, like a map).I want to show some label when my mouse pointer passing at some area.

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VS 2008 : Move Mouse Pointer To A Certain Color On Screen?

Jul 21, 2009

Is there a code in which the software scans the screen and point a specified color out of that scan and mark it.

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VS 2008 Mouse Pointer Disappears When Filling Textbox?

Jan 31, 2011

I have a main form "Parent" and another "child" form. When I am filling a textbox in the child form the mouse pointer disappears. Then I hit the tab key to jump to a combobox. At this time when I move the mouse, the pointer doesn't come up until I click the mouse button. This is annoying and the user of my program doesn't like it. How can I keep the mouse pointer always on top. NOte: although the main form has the parent property as true, the other child form are not defined as child forms.

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VS 2008 - Display The Color Of The Current Pixel Under The Mouse Pointer

Aug 6, 2009

I want to make a small application for my web designing needs that will display the color of the current pixel under the mouse pointer. I need this to work on the entire screen (no matter what form/application is in focus) and it needs to update in real time.

I'm not worried about the math or working with coordinates, but I don't know (and can't find) anything that might get the color of the pixel under the cursor on any form. I've found a small number of VB6 examples, but I'm with .NET 2008. Does anyone know of a method or anything (DLL even >.<)

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[vb2008] Click In A Point Of The Screen Without To Move The Mouse Pointer?

Feb 22, 2011

Pressing a Hotkey, I want to click the button of another application (a game table), knowing it x and y coordinates, without to move on the screen then mouse pointer, because this generate an annoyng fluttering.atm I use mouse_event, that works fine, but with the fluttering..In you opinion is this job is possible with a direct Api? I tried to hide the mouse with ShowCursor(False), but it works only over my forms, not over the screen...

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Display Submenu Items By Hovering The Mouse Pointer On Menus In Window?

Nov 22, 2011

I am using Vb.NET to build a windows application. In menu-strips by default the submenus will appear on clicking on the menu items. I am willing to display the submenu items by hovering the cursor on menu items. What is the procedure to do that?

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Why The Mouse_Leave Event Fires When Don't Leave The Control With The Mouse Pointer In This Situation

Jun 11, 2011

Anyone 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].....

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Multiple PictureBoxes Display Line Graph / Label To Follow Mouse Pointer

Dec 24, 2010

I am developing an application with multiple picture boxes, each displaying a line graph. I want to be able to have a label following the mousepointer showing xy coordinates of the point. I also want to allow a user to zoom in on a specific picture box by double clicking on it. The code does what I want as written (changes backcolor so I know double click event fires) except moving the position of the label to follow the mouse pointer.

However if if uncomment the line in the MouseMoved sub:
LB.Location = New Point(e.X, e.Y)
Then the label moves as desired however the double click event no longer fires.

Public Class Form1
Dim PB As New PictureBox, LB As New Label
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Controls.Add(PB)
With PB
[Code] .....

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