Category: Xamarin forms select

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Xamarin forms select

19.04.2021 Xamarin forms select

The Xamarin. Forms Picker displays a short list of items, from which the user can select an item. Picker defines the following properties:. All of the properties are backed by BindableProperty objects, which means that they can be styled, and the properties can be targets of data bindings.

For information about setting font properties, see Fonts. A Picker doesn't show any data when it's first displayed. Instead, the value of its Title property is shown as a placeholder on the iOS and Android platforms:. When the Picker gains focus, its data is displayed and the user can select an item:. The Picker fires a SelectedIndexChanged event when the user selects an item.

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Following selection, the selected item is displayed by the Picker :. There are two techniques for populating a Picker with data:. You may also leave feedback directly on GitHub. Skip to main content.

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Exit focus mode. Picker defines the following properties: Title of type stringwhich defaults to null. TitleColor of type Colorthe color used to display the Title text. ItemsSource of type IListthe source list of items to display, which defaults to null.

Xamarin.Forms DatePicker

SelectedIndex of type intthe index of the selected item, which defaults to SelectedItem of type objectthe selected item, which defaults to null. TextColor of type Colorthe color used to display the text, which defaults to Color. FontFamily of type stringwhich defaults to null.

FontSize of type doublewhich defaults to CharacterSpacingof type doubleis the spacing between characters of the item displayed by the Picker. Instead, the value of its Title property is shown as a placeholder on the iOS and Android platforms: When the Picker gains focus, its data is displayed and the user can select an item: The Picker fires a SelectedIndexChanged event when the user selects an item. Following selection, the selected item is displayed by the Picker : There are two techniques for populating a Picker with data: Setting the ItemsSource property to the data to be displayed.

This is the recommended technique. Adding the data to be displayed to the Items collection. This technique was the original process for populating a Picker with data.

Related links Picker Related Articles Is this page helpful? Yes No.If we will get a Mock Location this will detect it. The two platforms need to be discussed separately.

We have to send the mock test location via LocationManager. One more important thing: only the System app can send mock locations, so we have to call for the operation system, that this will send mock locations. So, as above said, we can mock the Location programmatically. We have to create a script fiel and add it to the Emulator.

If we get a gpx file, we have to script the Emulator. Open the AppleScript App on the Mac and create a new script:. Just call the SetLocation function.

Xamarin Forms List Item Selected to New Page MVVM First #12

On Android it is still required that change the Mock Location app and request permissions. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Facebook Twitter Email Github. Generic; using System. ComponentModel; using System.

Linq; using System.

xamarin forms select

Text; using System. Threading; using System. Tasks; using Xamarin. Essentials; using Xamarin. Forms; namespace Xamarin. GetLocationAsync request ; if location!

Toolbar; base. ApplicationContext; Xamarin. Init this, savedInstanceState ; global::Xamarin. Init this, savedInstanceState ; ActivityCompat. Content; using Android. Hardware; using Android. Locations; using Xamarin.

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Implementation; using Xamarin. Implementations; [assembly: Xamarin. Dependency typeof MockLocationProvider ] namespace Xamarin. GetSystemService Context. LocationService as LocationManager; locationManager. AddTestProvider LocationManager. GpsProvider, false, false, false, false, false, false, false, Power.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time.

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am using "Plugin. CrossPlatform" nuget for accessing Camera and take pictures in Xamarin Forms. But currently, it takes only a single picture at a time and upload only that last taken picture. I want to add multiple captures and allow a user to select a specific picture from recently captured images. Also, I have added selection mode, If a user wants to select a picture from gallery.

But there is the same issue. I want to select multiple images at a time and upload it, on both platforms. How's this implement in Xamarin Forms? Is there any example or blog for this task? I am using this package. You have to implement platform methods and access them with Dependency Service, something like that. TakePictures. While for iOS you can use PhotoPicker that can allow you to take multiple pictures before going back to your app.

Learn more. Asked 2 years, 2 months ago. Active 1 year, 7 months ago. Viewed 5k times. Hichame Yessou 2, 2 2 gold badges 12 12 silver badges 26 26 bronze badges. Srusti Thakkar Srusti Thakkar 1, 1 1 gold badge 14 14 silver badges 34 34 bronze badges. Active Oldest Votes.

The MediaPlugin doesn't allow multiple captures or picking up multiple pictures. ActionPick ; imageIntent.

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PutExtra Intent. ExtraAllowMultiple, true ; imageIntent. SetAction Intent. ActionGetContent ; Activity Forms. StartActivityForResult Intent. Create ; picker. IsCanceled t. Hichame Yessou Hichame Yessou 2, 2 2 gold badges 12 12 silver badges 26 26 bronze badges. Xamarin components are not supported anymore. Xamarin Android forms take multiple pictures from Camera this is the solution for it.Download the sample.

xamarin forms select

The Xamarin. Forms DatePicker invokes the platform's date-picker control and allows the user to select a date. DatePicker defines eight properties:. The DatePicker fires a DateSelected event when the user selects a date. Otherwise, DatePicker will raise an exception.

All eight properties are backed by BindableProperty objects, which means that they can be styled, and the properties can be targets of data bindings. The Date property has a default binding mode of BindingMode. Parse method with a CultureInfo. InvariantCulture argument to convert the string to a DateTime value.

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The dates must be specified in a precise format: two-digit months, two-digit days, and four-digit years separated by slashes:. In this example, all three properties are initialized to the corresponding properties in the viewmodel. Because the Date property has a binding mode of TwoWayany new date that the user selects is automatically reflected in the viewmodel.

If the DatePicker does not contain a binding on its Date property, an application should attach a handler to the DateSelected event to be informed when the user selects a new date. For information about setting font properties, see Fonts. It's possible to use an unconstrained horizontal layout option such as CenterStartor End with DatePicker :.

However, this is not recommended. Depending on the setting of the Format property, selected dates might require different display widths. For example, the "D" format string causes DateTime to display dates in a long format, and "Wednesday, September 12, " requires a greater display width than "Friday, May 4, ".

Depending on the platform, this difference might cause the DateTime view to change width in layout, or for the display to be truncated. These can be used to select two dates, and the program calculates the number of days between those dates.

The program doesn't change the settings of the MinimumDate and MaximumDate properties, so the two dates must be between and Each DatePicker is assigned a Format property of "D" for a long date format. Notice also that the endDatePicker object has a binding that targets its MinimumDate property. The binding source is the selected Date property of the startDatePicker object. This ensures that the end date is always later than or equal to the start date. In addition to the two DatePicker objects, a Switch is labeled "Include both days in total".

The two DatePicker views have handlers attached to the DateSelected event, and the Switch has a handler attached to its Toggled event. These event handlers are in the code-behind file and trigger a new calculation of the days between the two dates:.

When the sample is first run, both DatePicker views are initialized to today's date. The following screenshot shows the program running on iOS and Android:. Tapping either of the DatePicker displays invokes the platform date picker. The platforms implement this date picker in very different ways, but each approach is familiar to users of that platform:.

This allows, for example, additional buttons to be added to the dialog. You may also leave feedback directly on GitHub. Skip to main content. Exit focus mode. Forms view that allows the user to select a date. DatePicker defines eight properties: MinimumDate of type DateTimewhich defaults to the first day of the year MaximumDate of type DateTimewhich defaults to the last day of the year Currently, I've had great luck in selecting a file utilizing Xamarin.

Does anyone know how to get that to work as a Folder Picker or does anyone know of a good one out there? Note: No one wants to have a user try an select a file with Xamarin. FilePicker and strip out the file name for 2 reasons: 1, that's lame and 2, they may not have a file in that folder and therefore unable to select super lame. You could access the folders using System. GetDirectoriesmake a custom class on each platform to implement it and call this in forms with Dependency Service.

The package package above worked like a charm and I was hoping there was something else out there to SAVE time. To go into all three environments and create such an essential component does not seem very "Xamarin" to me; at least in terms of intention.

IMO this is pretty Essential hint hint at a disappointment and surprised it's not already available. Fetching files is different in each OS. The calls are the same though. Most of it still happens at the agnostic layer. Make a little 'FilesystemHelper class. Every C book covers it in a chapter on recursion. Ignore the look - its an in-house app and he wanted that File Commander look to it. But as you can see its just a control that looks at a directory and gets its content.

Two on a page and a copy button and bob's your uncle. ClintStLaurent -- Your in-house app is pretty much what I had to write up last year and was hoping not to do it again.

Xamarin.Forms documentation

The directory viewer is little more than a StackLayout for the toolbar Label for the directory path ListView for the list of contents. The Template for the ListView includes some gestures like On double tap, make that item the current folder, and therefore the Listview shows its contents. Then on a page you place it. And bind the double-tapped command to a handler on your ViewModel The handler just take the param the new target folder and fetches its contents and set's that result to the binding collection - UI updates from that binding.

TIP: Do all the fetch async because the file systems on these devices is not fast.

xamarin forms select

However I was able to leverage Font Awesome 4 for the the icons fyi - definitely suggest that. Xamarin Inc. This site uses cookies for analytics, personalized content and ads.

By continuing to browse this site, you agree to this use. Learn more. Xamarin Menu About What is Xamarin?By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have for some days been reading on different forums about the issue of selecting a text and copying the text natively from a label in xamarin forms and it seems to be no straightforward way of implementing this.

My problem is that I need to present a large amount of data from a book in a label and the user should be able to select and copy a chunk of text from the label. I moved on to present the data in an Editor component instead but then the user can edit the text in the Editor. Making the Editor component read-only doesn't solve the problem either. I recently faced the same business requirement. An Editor with Renderers customization on each platform was the solution for me.

Check out my post with full code for Xamarin. You can also read posts on native Android and native iOS for more details. Learn more. Select text and copy from label xamarin forms Ask Question. Asked 2 years, 3 months ago. Active 4 months ago. Viewed 1k times.

Any suggestions would be greatly appreciated! Ali Nazar Ali Nazar 71 1 1 silver badge 11 11 bronze badges. Hi, if you haven't read minimal reproducible example yet, please do so and edit your question. Thanks but i have already looked through that forum page before. Active Oldest Votes. Thanks alot. Vadim Yangunaev 1, 1 1 gold badge 9 9 silver badges 22 22 bronze badges.

Chetan Rawat Chetan Rawat 2 2 silver badges 13 13 bronze badges.Download the sample. CollectionView defines the following properties that control item selection:.

All of these properties are backed by BindableProperty objects, which means that the properties can be targets of data bindings. By default, CollectionView selection is disabled.

However, this behavior can be changed by setting the SelectionMode property value to one of the SelectionMode enumeration members:. CollectionView defines a SelectionChanged event that is fired when the SelectedItem property changes, either due to the user selecting an item from the list, or when an application sets the property.

In addition, this event is also fired when the SelectedItems property changes. In addition, CollectionView has a UpdateSelectedItems method that updates the SelectedItems property with a list of selected items, while only firing a single change notification.

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When the SelectionMode property is set to Singlea single item in the CollectionView can be selected. When an item is selected, the SelectedItem property will be set to the value of the selected item.

In this code example, the OnCollectionViewSelectionChanged event handler is executed when the SelectionChanged event fires, with the event handler retrieving the previously selected item, and the current selected item:. The SelectionChanged event can be fired by changes that occur as a result of changing the SelectionMode property. The following screenshots show single item selection in a CollectionView :.

When the SelectionMode property is set to Multiplemultiple items in the CollectionView can be selected. When items are selected, the SelectedItems property will be set to the selected items.

In this code example, the OnCollectionViewSelectionChanged event handler is executed when the SelectionChanged event fires, with the event handler retrieving the previously selected items, and the current selected items:. The following screenshots show multiple item selection in a CollectionView :. When the SelectionMode property is set to Singlea single item in the CollectionView can be pre-selected by setting the SelectedItem property to the item.

The SelectedItem property has a default binding mode of TwoWay.

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The SelectedItem property data binds to the SelectedMonkey property of the connected view model, which is of type Monkey. By default, a TwoWay binding is used so that if the user changes the selected item, the value of the SelectedMonkey property will be set to the selected Monkey object.

The SelectedMonkey property is defined in the MonkeysViewModel class, and is set to the fourth item of the Monkeys collection:. Therefore, when the CollectionView appears, the fourth item in the list is pre-selected:. When the SelectionMode property is set to Multiplemultiple items in the CollectionView can be pre-selected.

The SelectedItems property has a default binding mode of OneWay. The SelectedMonkeys property is defined in the MonkeysViewModel class, and is set to the second, fourth, and fifth items in the Monkeys collection:.

Therefore, when the CollectionView appears, the second, fourth, and fifth items in the list are pre-selected:. The SelectedItem and SelectedItems properties can be cleared by setting them, or the objects they bind to, to null. CollectionView has a Selected VisualState that can be used to initiate a visual change to the selected item in the CollectionView. A common use case for this VisualState is to change the background color of the selected item, which is shown in the following XAML example:.

The Style that contains the Selected VisualState must have a TargetType property value that's the type of the root element of the DataTemplatewhich is set as the ItemTemplate property value. In this example, the Style. For more information about visual states, see Xamarin. Forms Visual State Manager.

CollectionView selection is disabled by default. However, if a CollectionView has selection enabled, it can be disabled by setting the SelectionMode property to None :. When the SelectionMode property is set to Noneitems in the CollectionView cannot be selected, the SelectedItem property will remain nulland the SelectionChanged event will not be fired.

When an item has been selected and the SelectionMode property is changed from Single to Nonethe SelectedItem property will be set to null and the SelectionChanged event will be fired with an empty CurrentSelection property.

You may also leave feedback directly on GitHub. Skip to main content.


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