[forms-devel] forms-devel Digest, Vol 4, Issue 2
Michael Rumpler
michael at mrumpler.at
Wed Aug 17 06:59:44 UTC 2016
Hi,
I would join the two proposals for a CheckBox and a RadioButton. They do almost the same. The element could act like a CheckBox if no GroupName is set.
Furthermore I’d add two properties to change the default appearance.
public ImageSource CheckedImage
public ImageSource UncheckedImage
You both seem to want to display a text beside the CheckBox/RadioButton. It should be possible to configure, where the text is displayed in relation to the image. Something like:
public TextPosition TextPosition
public enum TextPosition
{
Right, Left, Above, Below
}
(the same would be great for a simple Button too)
Regards,
Michael
From: rina you [mailto:rina6350.you at gmail.com]
Sent: Wednesday, August 17, 2016 8:09 AM
To: forms-devel at lists.dot.net; Jason Smith <jas at microsoft.com>
Subject: Re: [forms-devel] forms-devel Digest, Vol 4, Issue 2
Hello,
I'd like to share a draft spec for CheckBox in the mailing list.
And then, I will make a PR for CheckBox based on other opinions in this mailing list.
* The CheckBox will inherit View and IFontElement and have a public constructor for initializing a new instance of the CheckBox class.
* The CheckBox will have the following public fields for bindable properties:
- public static readonly BindableProperty FontAttributesProperty : Identifies the FontAttributes bindable property.
- public static readonly BindableProperty FontFamilyProperty : Identifies the FontFamily bindable property.
- public static readonly BindableProperty FontSizeProperty : Identifies the FontSize bindable property.
- public static readonly BindableProperty IsCheckedProperty : Identifies the IsChecked bindable property.
- public static readonly BindableProperty TextProperty : Identifies the Text bindable property.
- public static readonly BindableProperty TextColorProperty : Identifies the TextColor bindable property.
* The CheckBox will have the following public properties.
- public Font FontAttributes : A value that indicates whether the font of the checkbox is bold, italic or neither.
- public String FontFamily : A value that indicates the font family which the checkbox font belongs to.
- public Double FontSize : A value that indicates font size of the checkbox.
- public bool IsChecked : A value that indicates whether this checkbox is checked or not.
- public String Text : A value for the text that is displayed as the content of the checkbox.
- public Color TextColor : A value that indicates the color for the text of checkbox.
* The CheckBox will have an event.
- public event EventHandler Clicked : This event occurs when the checkbox is checked.
If you have any opinion about the draft spec for CheckBox, please, could you share your opinion?
I look forward to hearing any opinions about this draft spec.
Thank you.
Best regards,
- Rina You
2016. 8. 16. 오후 7:18에 "rina you" <rina6350.you at gmail.com <mailto:rina6350.you at gmail.com> >님이 작성:
Hello,
I am happy to hear this news from you.
In this case, should I prepare the PR for CheckBox?
I look forward to hearing your opinion.
Thank you.
Best regards,
- Rina You
2016. 8. 16. 오후 4:26에 "Jason Smith" <jas at microsoft.com <mailto:jas at microsoft.com> >님이 작성:
In general we are on board with the creation of a general Checkbox control. I would love to see an API proposal here in the mailing list :)
From: forms-devel [mailto:forms-devel-bounces at lists.dot.net <mailto:forms-devel-bounces at lists.dot.net> ] On Behalf Of rina you
Sent: Friday, August 12, 2016 12:57 AM
To: forms-devel at lists.dot.net <mailto:forms-devel at lists.dot.net>
Subject: Re: [forms-devel] forms-devel Digest, Vol 4, Issue 2
Hello all and Adam,
Thank you for you opinion.
I agree that the way using ListView you mention can be another way to provide a multiple selection of items.
I also agree that this approach can provide better UX for ListView.
However, how about considering the scenario that the number of item is one or two?
If the number of item is one or two and app user can select one status between 'Checked' and 'Unchecked' in each item,
Should app developer provide this UX with ListView?
The development process of an app that this UX is provided with ListView takes more time than the procedure using a simple checkbox.
The app should include more code line than an app using a simple checkbox.
As you already know, checkBox have function to indicate two states which are 'checked' and 'unchecked' with text
as well as function to provide multiple selections of items.
So, checkBox could be useful control for providing user's selection between 'checked' and 'unchecked' about one or two items with text.
Also, is this link(https://material.google.com/ <https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fmaterial.google.com%2f&data=01%7c01%7cjas%40microsoft.com%7cb3c1d44ecf3042c9df2308d3c2863d6f%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=4Q%2b7aBplhu%2bp8mercu%2b%2bNUx1aIzyNpnbyIsJiFQ%2fNjg%3d> ) Google Material Design Guidelines you mention on a previous email?
Actually, it is a little hard to find some opinion that guideline specially discourage checkbox.
Instead, this design guideline describes well that checkbox is one of controls for allowing the user to select options.
I'd like to share two link about checkbox in Google Material Design Guidelines.
- https://material.google.com/components/selection-controls.html# <https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fmaterial.google.com%2fcomponents%2fselection-controls.html%23&data=01%7c01%7cjas%40microsoft.com%7cb3c1d44ecf3042c9df2308d3c2863d6f%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=uuf%2ferYU9MNszNei%2bznP66uRhu%2fud0LuPvVmV59R3mY%3d>
- https://material.google.com/components/lists-controls.html# <https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fmaterial.google.com%2fcomponents%2flists-controls.html%23&data=01%7c01%7cjas%40microsoft.com%7cb3c1d44ecf3042c9df2308d3c2863d6f%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=KfVnIYNo1G7rgkZDPT1QhtIEgC8NAxF9wEAl%2fp3MBLU%3d>
These two link describe definitely how checkbox can be useful for providing various UX to user.
Thank you for sharing your opinion about checkbox again.
Best regards,
- Rina You
2016. 8. 12. 오후 1:27에 "S.H Choi" <flyofsky at gmail.com <mailto:flyofsky at gmail.com> >님이 작성:
---------- 전달된 메일 ----------
보낸사람: "Adam Pedley" <adam.pedley at gmail.com <mailto:adam.pedley at gmail.com> >
날짜: 2016. 8. 11. 오후 9:15
제목: Re: [forms-devel] forms-devel Digest, Vol 4, Issue 2
받는사람: <forms-devel at lists.dot.net <mailto:forms-devel at lists.dot.net> >
참조:
Since Checkboxes are natively a part of Android and UWP, I think it could be good to expose them. iOS would probably need a toggle with a different image, or a button with a different selected state as I don't know of a native checkbox.
Rina, while checkboxes can be good the specific scenario you mention for their use, such as a multiple select of items in a list is normally discouraged due to UX issues such as if you are selecting the item or ticking the checkbox. For this reason Google Material Design Guidelines specifically discourages them and I think other guideline do as well.
Might I suggest when you select an item in the ListView or list of some kind you show a tick next to the item, or highlight the row in the list. This approach tends to go over better in a mobile UI and doesn't confuse selecting the list row, vs a control in the list.
On Thu, Aug 11, 2016 at 10:00 PM, <forms-devel-request at lists.dot.net <mailto:forms-devel-request at lists.dot.net> > wrote:
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Today's Topics:
1. Add a CheckBox (rina you)
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Message: 1
Date: Thu, 11 Aug 2016 20:31:08 +0900
From: rina you <rina6350.you at gmail.com <mailto:rina6350.you at gmail.com> >
To: forms-devel at lists.dot.net <mailto:forms-devel at lists.dot.net>
Subject: [forms-devel] Add a CheckBox
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Hello,
I'd like to add a CheckBox for allowing the user can select multiple
options in the list.
And a CheckBox is a specific control that has two states which are
'checked' and 'unchecked'.
This CheckBox will have the following properties.
- FontAttributes : A value that indicate whether the font of the checkbox
is bold, italic or neither.
- FontFamily : A value that indicate font family to which the font for
checkbox text belongs.
- FontSize : A value that indicate font size of checkbox.
- IsChecked : A value that indicate whether this checkbox is checked or
not.
- Text : A text displayed as the content of the checkbox.
- TextColor : A value that indicate the color for the text of checkbox.
Also, this CheckBox will have an event.
- Checked : This event occurs when checkbox is checked.
Just like other controls, the CheckBox is a very common control.
Xamarin will be able to provide richer function in many application, if
this control is added on xamarin.
I will look forward to hearing your opinion.
Thank you.
Best regard,
Rina You
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