Develop Reference

How can I seperate a page click from a drag in WPF?

I need to only fire the page click event if a normal page click happens, not when a user clicks somewhere on my page, then drags the mouse to a different location and lets go of the mouse button. Right now the page click event is fired when the user lets go of the mouse button regardless of where he first clicked or how long the mouse button was held down for. I cannot modify any code in the mouse drag, mouse down, or mouse up events unfortunately, so no solution involving these events will work for me.

Button event and states

I have a Windows Form in C# with 4 buttons with different states that I use as a menu.
What is the best way to use/implement the different button states.
Normal --> Mouse Enter, Mouse Leave and Mouse click. On click, that specific button should stay the clicked color and only change back to normal once a different button is clicked. Clicked color should also not change again on mouse enter or mouse leave. Should be flat buttons.
Thanks

change background of all buttons to default on click.
Then apply the Required backrgound to the button which triggered the click event by using the sender variable of the event

Mouse click event mixing up with move down nd mouse up events in Windows Forms

I have an operation that requires me to use Mouse Click, Mouse Down and Mouse Up events. However, the Mouse Down and Mouse Up events are being called when the Mouse Click event occurs. i.e. They are over riding the Click Event. Any ideas of how to work around this situation. I have to use these events in order to complete the operation in the viewport.
I am using Win Forms events with C#.

first of all Why you want to use all three events ? In which order you expect these events to be fired?
mousedown
Fires when the user depresses the mouse button.
mouseup
Fires when the user releases the mouse button.
click
Fires when a mousedown and mouseup event occur on the same element.
Mouse Click = Mouse Down + Mouse Up
So definitely if you have all three events in your form all of them will be fired.

How to determine if user clicks out of ContextMenuStrip?

I am building winform application without any form shown (opacity of form is 0 and ShowInTaskbar property is false). It is accessible only from tray Notify icon. When users clicks with left mouse button on it, the contextMenustrip menu will be show. Because I want to detect LEFT mouse button click I can't use ContextMenu Property of NotifyIcon.
I would like, that if users clicks whenever out of the menu, it should hide. I don't have any idea how I can do that...
If I have shown form, I could detect Deactivate form event and then hide my menu, but in described situation it looks harder.

1) Instead of setting opacity to 0 better set WindowState = FormWindowState.Minimized
2) You cant detect mouse clicks outside of your program as they are controlled by other programs or your OS, but handling Leave or MouseLeave event should help you

c# Control.Validating event leaves mouse focus on other controls?

I have a c# .net 2.0 winForm with a textbox and a trackbar. The textbox Validating event sets e.cancel if the user clicks the trackbar and the validation fails. I am then left with the cursor in the textbox, but the mouse focus is still on the trackbar so moving the mouse moves the trackbar.
I have tried SetFocus in the validating event (bad according to MSDN but I tried anyway) but the mouse stays on the trackbar.
How do I detach the mouse focus from the trackbar?

Are you displaying the validation error message in a message box. If that is the case the mouse release of trackbar wouldnt have fired as the message box would have taken control and that's the reason you are seeing the trackbar moving after you exit the message box.
MessageBox and validating event dont go well with each other. Best way to do it is to use a ErrorProvider.