winforms - Toggle the picture of picture box with picture box on_click c# -

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i have 1 image in picture box using resource want change image when click icon.png should changed icon1.png within picturebox when click again picture box should changed icon.png

private void picturebox10_click(object sender, eventargs e)     {         if (picturebox10.imagelocation != @"icon1.png")         {             var image = image.fromfile(@"icon1.png");             picturebox10.image = image;          }         if (picturebox10.imagelocation == @"icon1.png")         {             var image = image.fromfile(@"icon.png");             picturebox10.image = image;         }      }

but not working please me out of this.

you're getting null image location it's not set when you're assigning picture image property. there few ways fix this:

  1. change assignment assign using imagelocation 

    picturebox10.imagelocation = @"icon1.png";

  2. change check see if image property equal new image

    picturebox10.image == image.fromfile(@"icon.png");

  3. set image location @ same time set image property

    picturebox10.image == image.fromfile(@"icon.png"); picturebox10.imagelocation = @"icon.png" ;

i feel second might not come equal, want try first 1 or third

suggested code:

private void picturebox10_click(object sender, eventargs e) {     if (picturebox10.imagelocation != @"icon1.png")     {         picturebox10.imagelocation = @"icon1.png"      }     if (picturebox10.imagelocation == @"icon1.png")     {         picturebox10.imagelocation = @"icon.png";     }  }

or:

private void picturebox10_click(object sender, eventargs e) {     if (picturebox10.imagelocation != @"icon1.png")     {         var image = image.fromfile(@"icon1.png");         picturebox10.image = image;         picturebox10.imagelocation = @"icon1.png";      }     if (picturebox10.imagelocation == @"icon1.png")     {         var image = image.fromfile(@"icon.png");         picturebox10.image = image;         picturebox10.imagelocation = @"icon.png";     }  }

you need update intial property setting set imagelocation , not image property or set imagelocation @ same time set image file

edit

off top of head, set property initially, can (source):

protected override void onload(eventargs e){     picturebox10.imagelocation = @"icon.png"; }

though can't remember if picturebox have been created then, if not use onshown event instead (source)

edit 2

here way create event , set property, first follow steps here add event onshown form. need click on form , not controls inside form find event.

once done, inside event add following code:

picturebox10.imagelocation = @"icon.png";

that should resolve issue


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