C# Detect if Form is in the “Background” / Invisible (for the User)
0
We have some Forms that have no border / no toolbox (overlays)
Whenever the user clicks somewhere else in the underlaying window, the overlay-form is send to the background (regular non-modal-form behaviour)
Is there an Event for this, so the "overlay" could detect it's visibility change and close itself?
Maybe it can be handled within in resize / paint event, where the "invisibility" can be catched?
Background:
Typical "Select-Or-Create-New" UseCase. Clicking "plus" shows the tiny creation-form. Currently it's "topmost", so the user needs to hit "Escape" to get rid of it. (Else there would be a mess of "background-overlays", hence the question)
Would be more "userfriendly" if a click on something else closes that "tiny form":
c# winforms
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
|
show 1 more comment
0
We have some Forms that have no border / no toolbox (overlays)
Whenever the user clicks somewhere else in the underlaying window, the overlay-form is send to the background (regular non-modal-form behaviour)
Is there an Event for this, so the "overlay" could detect it's visibility change and close itself?
Maybe it can be handled within in resize / paint event, where the "invisibility" can be catched?
Background:
Typical "Select-Or-Create-New" UseCase. Clicking "plus" shows the tiny creation-form. Currently it's "topmost", so the user needs to hit "Escape" to get rid of it. (Else there would be a mess of "background-overlays", hence the question)
Would be more "userfriendly" if a click on something else closes that "tiny form":
c# winforms
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
1
Form.Deactivate?
– TnTinMn
Nov 13 '18 at 22:58
@TnTinMn Form.Deactivate!
– dognose
Nov 13 '18 at 23:03
Change the pop-up form toTopLevel = false;and try using this example: How to create drop down information box in C# Winforms?
– LarsTech
Nov 13 '18 at 23:15
@LarsTech yes, ofc. its no longer "TopLevel". That was just a workaround to avoid having a lot overlays beeing send to the background whenever the user clicks "somewhere else".
– dognose
Nov 13 '18 at 23:22
I think you missed my point. A pop-up control using a ToolStripControlHost would close the pop-up for you when the user clicks somewhere else. It also wouldn't deactivate your main form.
– LarsTech
Nov 13 '18 at 23:27
|
show 1 more comment
0
0
0
We have some Forms that have no border / no toolbox (overlays)
Whenever the user clicks somewhere else in the underlaying window, the overlay-form is send to the background (regular non-modal-form behaviour)
Is there an Event for this, so the "overlay" could detect it's visibility change and close itself?
Maybe it can be handled within in resize / paint event, where the "invisibility" can be catched?
Background:
Typical "Select-Or-Create-New" UseCase. Clicking "plus" shows the tiny creation-form. Currently it's "topmost", so the user needs to hit "Escape" to get rid of it. (Else there would be a mess of "background-overlays", hence the question)
Would be more "userfriendly" if a click on something else closes that "tiny form":
c# winforms
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
We have some Forms that have no border / no toolbox (overlays)
Whenever the user clicks somewhere else in the underlaying window, the overlay-form is send to the background (regular non-modal-form behaviour)
Is there an Event for this, so the "overlay" could detect it's visibility change and close itself?
Maybe it can be handled within in resize / paint event, where the "invisibility" can be catched?
Background:
Typical "Select-Or-Create-New" UseCase. Clicking "plus" shows the tiny creation-form. Currently it's "topmost", so the user needs to hit "Escape" to get rid of it. (Else there would be a mess of "background-overlays", hence the question)
Would be more "userfriendly" if a click on something else closes that "tiny form":
c# winforms
c# winforms
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
edited Nov 13 '18 at 22:54
dognose
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
asked Nov 13 '18 at 22:45
dognosedognose
15.9k64790
15.9k64790
1
Form.Deactivate?
– TnTinMn
Nov 13 '18 at 22:58
@TnTinMn Form.Deactivate!
– dognose
Nov 13 '18 at 23:03
Change the pop-up form toTopLevel = false;and try using this example: How to create drop down information box in C# Winforms?
– LarsTech
Nov 13 '18 at 23:15
@LarsTech yes, ofc. its no longer "TopLevel". That was just a workaround to avoid having a lot overlays beeing send to the background whenever the user clicks "somewhere else".
– dognose
Nov 13 '18 at 23:22
I think you missed my point. A pop-up control using a ToolStripControlHost would close the pop-up for you when the user clicks somewhere else. It also wouldn't deactivate your main form.
– LarsTech
Nov 13 '18 at 23:27
|
show 1 more comment
1
Form.Deactivate?
– TnTinMn
Nov 13 '18 at 22:58
@TnTinMn Form.Deactivate!
– dognose
Nov 13 '18 at 23:03
Change the pop-up form toTopLevel = false;and try using this example: How to create drop down information box in C# Winforms?
– LarsTech
Nov 13 '18 at 23:15
@LarsTech yes, ofc. its no longer "TopLevel". That was just a workaround to avoid having a lot overlays beeing send to the background whenever the user clicks "somewhere else".
– dognose
Nov 13 '18 at 23:22
I think you missed my point. A pop-up control using a ToolStripControlHost would close the pop-up for you when the user clicks somewhere else. It also wouldn't deactivate your main form.
– LarsTech
Nov 13 '18 at 23:27
1
1
Form.Deactivate?
– TnTinMn
Nov 13 '18 at 22:58
Form.Deactivate?
– TnTinMn
Nov 13 '18 at 22:58
@TnTinMn Form.Deactivate!
– dognose
Nov 13 '18 at 23:03
@TnTinMn Form.Deactivate!
– dognose
Nov 13 '18 at 23:03
Change the pop-up form to
TopLevel = false; and try using this example: How to create drop down information box in C# Winforms?– LarsTech
Nov 13 '18 at 23:15
Change the pop-up form to
TopLevel = false; and try using this example: How to create drop down information box in C# Winforms?– LarsTech
Nov 13 '18 at 23:15
@LarsTech yes, ofc. its no longer "TopLevel". That was just a workaround to avoid having a lot overlays beeing send to the background whenever the user clicks "somewhere else".
– dognose
Nov 13 '18 at 23:22
@LarsTech yes, ofc. its no longer "TopLevel". That was just a workaround to avoid having a lot overlays beeing send to the background whenever the user clicks "somewhere else".
– dognose
Nov 13 '18 at 23:22
I think you missed my point. A pop-up control using a ToolStripControlHost would close the pop-up for you when the user clicks somewhere else. It also wouldn't deactivate your main form.
– LarsTech
Nov 13 '18 at 23:27
I think you missed my point. A pop-up control using a ToolStripControlHost would close the pop-up for you when the user clicks somewhere else. It also wouldn't deactivate your main form.
– LarsTech
Nov 13 '18 at 23:27
|
show 1 more comment
1 Answer
1
active
oldest
votes
1
You can use the Deactivate event of the form:
private void Form1_Deactivate(object sender, EventArgs e)
Visible = false;
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
Thx, missed the obvious it seems.
– dognose
Nov 13 '18 at 23:03
1
@dognose, this happens, although I have used this event many times (long time ago) I opened a new winform project and looked in the events, because although I knew it was there I didn't remember what was it ;)
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:05
@dognose Instead ofVisible = false;, you might want to do something likeOpacity = .5;so that the form can still be seen (and re-activated again, where you would setOpacity = 1;)
– Rufus L
Nov 13 '18 at 23:06
Also checked all Events, but afterVisibleChangedjust reacted onthis.visible=x- I expectedDisabledto require an explicit setting ofthis.enabled=falseas well :-)
– dognose
Nov 13 '18 at 23:08
@RufusL this was only to show the event, and dognose is an experienced programmer as his rep shows, he'll get hang of it. and I actually set visibility because of this:**Is there an Event for this, so the "overlay" could detect it's visibility change and close itself**
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:08
|
show 3 more comments
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1 Answer
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1
You can use the Deactivate event of the form:
private void Form1_Deactivate(object sender, EventArgs e)
Visible = false;
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
Thx, missed the obvious it seems.
– dognose
Nov 13 '18 at 23:03
1
@dognose, this happens, although I have used this event many times (long time ago) I opened a new winform project and looked in the events, because although I knew it was there I didn't remember what was it ;)
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:05
@dognose Instead ofVisible = false;, you might want to do something likeOpacity = .5;so that the form can still be seen (and re-activated again, where you would setOpacity = 1;)
– Rufus L
Nov 13 '18 at 23:06
Also checked all Events, but afterVisibleChangedjust reacted onthis.visible=x- I expectedDisabledto require an explicit setting ofthis.enabled=falseas well :-)
– dognose
Nov 13 '18 at 23:08
@RufusL this was only to show the event, and dognose is an experienced programmer as his rep shows, he'll get hang of it. and I actually set visibility because of this:**Is there an Event for this, so the "overlay" could detect it's visibility change and close itself**
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:08
|
show 3 more comments
1
You can use the Deactivate event of the form:
private void Form1_Deactivate(object sender, EventArgs e)
Visible = false;
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
Thx, missed the obvious it seems.
– dognose
Nov 13 '18 at 23:03
1
@dognose, this happens, although I have used this event many times (long time ago) I opened a new winform project and looked in the events, because although I knew it was there I didn't remember what was it ;)
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:05
@dognose Instead ofVisible = false;, you might want to do something likeOpacity = .5;so that the form can still be seen (and re-activated again, where you would setOpacity = 1;)
– Rufus L
Nov 13 '18 at 23:06
Also checked all Events, but afterVisibleChangedjust reacted onthis.visible=x- I expectedDisabledto require an explicit setting ofthis.enabled=falseas well :-)
– dognose
Nov 13 '18 at 23:08
@RufusL this was only to show the event, and dognose is an experienced programmer as his rep shows, he'll get hang of it. and I actually set visibility because of this:**Is there an Event for this, so the "overlay" could detect it's visibility change and close itself**
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:08
|
show 3 more comments
1
1
1
You can use the Deactivate event of the form:
private void Form1_Deactivate(object sender, EventArgs e)
Visible = false;
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
You can use the Deactivate event of the form:
private void Form1_Deactivate(object sender, EventArgs e)
Visible = false;
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
answered Nov 13 '18 at 22:59
Ashkan Mobayen KhiabaniAshkan Mobayen Khiabani
20.6k1566115
20.6k1566115
Thx, missed the obvious it seems.
– dognose
Nov 13 '18 at 23:03
1
@dognose, this happens, although I have used this event many times (long time ago) I opened a new winform project and looked in the events, because although I knew it was there I didn't remember what was it ;)
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:05
@dognose Instead ofVisible = false;, you might want to do something likeOpacity = .5;so that the form can still be seen (and re-activated again, where you would setOpacity = 1;)
– Rufus L
Nov 13 '18 at 23:06
Also checked all Events, but afterVisibleChangedjust reacted onthis.visible=x- I expectedDisabledto require an explicit setting ofthis.enabled=falseas well :-)
– dognose
Nov 13 '18 at 23:08
@RufusL this was only to show the event, and dognose is an experienced programmer as his rep shows, he'll get hang of it. and I actually set visibility because of this:**Is there an Event for this, so the "overlay" could detect it's visibility change and close itself**
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:08
|
show 3 more comments
Thx, missed the obvious it seems.
– dognose
Nov 13 '18 at 23:03
1
@dognose, this happens, although I have used this event many times (long time ago) I opened a new winform project and looked in the events, because although I knew it was there I didn't remember what was it ;)
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:05
@dognose Instead ofVisible = false;, you might want to do something likeOpacity = .5;so that the form can still be seen (and re-activated again, where you would setOpacity = 1;)
– Rufus L
Nov 13 '18 at 23:06
Also checked all Events, but afterVisibleChangedjust reacted onthis.visible=x- I expectedDisabledto require an explicit setting ofthis.enabled=falseas well :-)
– dognose
Nov 13 '18 at 23:08
@RufusL this was only to show the event, and dognose is an experienced programmer as his rep shows, he'll get hang of it. and I actually set visibility because of this:**Is there an Event for this, so the "overlay" could detect it's visibility change and close itself**
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:08
Thx, missed the obvious it seems.
– dognose
Nov 13 '18 at 23:03
Thx, missed the obvious it seems.
– dognose
Nov 13 '18 at 23:03
1
1
@dognose, this happens, although I have used this event many times (long time ago) I opened a new winform project and looked in the events, because although I knew it was there I didn't remember what was it ;)
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:05
@dognose, this happens, although I have used this event many times (long time ago) I opened a new winform project and looked in the events, because although I knew it was there I didn't remember what was it ;)
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:05
@dognose Instead of
Visible = false;, you might want to do something like Opacity = .5; so that the form can still be seen (and re-activated again, where you would set Opacity = 1;)– Rufus L
Nov 13 '18 at 23:06
@dognose Instead of
Visible = false;, you might want to do something like Opacity = .5; so that the form can still be seen (and re-activated again, where you would set Opacity = 1;)– Rufus L
Nov 13 '18 at 23:06
Also checked all Events, but after
VisibleChanged just reacted on this.visible=x - I expected Disabled to require an explicit setting of this.enabled=false as well :-)– dognose
Nov 13 '18 at 23:08
Also checked all Events, but after
VisibleChanged just reacted on this.visible=x - I expected Disabled to require an explicit setting of this.enabled=false as well :-)– dognose
Nov 13 '18 at 23:08
@RufusL this was only to show the event, and dognose is an experienced programmer as his rep shows, he'll get hang of it. and I actually set visibility because of this:**Is there an Event for this, so the "overlay" could detect it's visibility change and close itself**
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:08
@RufusL this was only to show the event, and dognose is an experienced programmer as his rep shows, he'll get hang of it. and I actually set visibility because of this:**Is there an Event for this, so the "overlay" could detect it's visibility change and close itself**
– Ashkan Mobayen Khiabani
Nov 13 '18 at 23:08
|
show 3 more comments
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1
Form.Deactivate?
– TnTinMn
Nov 13 '18 at 22:58
@TnTinMn Form.Deactivate!
– dognose
Nov 13 '18 at 23:03
Change the pop-up form to
TopLevel = false;and try using this example: How to create drop down information box in C# Winforms?– LarsTech
Nov 13 '18 at 23:15
@LarsTech yes, ofc. its no longer "TopLevel". That was just a workaround to avoid having a lot overlays beeing send to the background whenever the user clicks "somewhere else".
– dognose
Nov 13 '18 at 23:22
I think you missed my point. A pop-up control using a ToolStripControlHost would close the pop-up for you when the user clicks somewhere else. It also wouldn't deactivate your main form.
– LarsTech
Nov 13 '18 at 23:27