This commit is contained in:
AGerchevProgress 2020-01-10 15:01:58 +02:00
Родитель 1707c52291
Коммит 69a4d0476f
7 изменённых файлов: 317 добавлений и 14 удалений

Просмотреть файл

@ -18,7 +18,7 @@ In addition the List Picker for Xamarin provides the following properties:
* **ItemLength**(*double*): Defines the length of the items inside the list. * **ItemLength**(*double*): Defines the length of the items inside the list.
* **ItemSpacing**(*double*): Defines the spacing between the items inside the list. * **ItemSpacing**(*double*): Defines the spacing between the items inside the list.
* **SelectedItem**(*object*): Specifies the selected item of the list picker * **SelectedItem**(*object*): Specifies the selected item of the list picker
* **DisplayMemberPath**(*string*): Defines the path pf the property which is to be displayed as DisplayString. * **DisplayMemberPath**(*string*): Defines the path of the property which is to be displayed as DisplayString.
## Example ## Example

Просмотреть файл

@ -5,7 +5,7 @@ position: 1
slug: templated-picker-getting-started slug: templated-picker-getting-started
--- ---
# Getting Started # Getting Started with Custom Picker for Xamarin
This article will guide you through the steps needed to add a basic **RadTemplatedPicker** control in your application. This article will guide you through the steps needed to add a basic **RadTemplatedPicker** control in your application.
@ -35,7 +35,7 @@ You have two options:
| iOS | Telerik.Xamarin.iOS.dll <br/>Telerik.XamarinForms.Input<br/>Telerik.XamarinForms.Common.dll<br/>Telerik.XamarinForms.Primitives.dll | | iOS | Telerik.Xamarin.iOS.dll <br/>Telerik.XamarinForms.Input<br/>Telerik.XamarinForms.Common.dll<br/>Telerik.XamarinForms.Primitives.dll |
| UWP | Telerik.Core.dll<br/>Telerik.UI.Xaml.Primitives.UWP.dll<br/>Telerik.XamarinForms.Input<br/>Telerik.XamarinForms.Common.dll<br/>Telerik.XamarinForms.Primitives.dll | | UWP | Telerik.Core.dll<br/>Telerik.UI.Xaml.Primitives.UWP.dll<br/>Telerik.XamarinForms.Input<br/>Telerik.XamarinForms.Common.dll<br/>Telerik.XamarinForms.Primitives.dll |
## 3. Adding RadListPicker control ## 3. Adding RadTemplatedPicker control
You could use one of the following approaches: You could use one of the following approaches:
@ -48,18 +48,22 @@ Take a look at the following topics on how to use the toolbox:
#### Create the control definition in XAML or C#. #### Create the control definition in XAML or C#.
The snippet below shows a simple RadListPicker definition: The snippet below shows a simple RadTemplatedPicker definition:
<snippet id='listpicker-getting-started-xaml' /> <snippet id='templatedpicker-getting-started-xaml' />
<snippet id='listpicker-getting-started-csharp' /> <snippet id='templatedpicker-getting-started-csharp' />
add the following Business model for the first spinner:
<snippet id='templatedpicker-country-businessmodel' />
add the following Business model for the second spinner:
<snippet id='templatedpicker-city-businessmodel' />
here is a sample definition of the ViewModel: here is a sample definition of the ViewModel:
<snippet id='listpicker-getting-started-viewmodel' /> <snippet id='templatedpicker-viewmodel' />
and the Business model:
<snippet id='listpicker-getting-started-business-model' />
In addition to this, you need to add the following namespace: In addition to this, you need to add the following namespace:
@ -72,9 +76,9 @@ using Telerik.XamarinForms.Input;
This is the result: This is the result:
![List Picker](images/listpicker_getting_started.png) ![Templated Picker](images/listpicker_getting_started.png)
>important **SDK Browser** and **QSF** applications contain different examples that show RadDateTimePicker's main features. You can find the applications in the **Examples** and **QSF** folders of your local **Telerik UI for Xamarin** installation. >important **SDK Browser** and **QSF** applications contain different examples that show RadTemplatedPicker's main features. You can find the applications in the **Examples** and **QSF** folders of your local **Telerik UI for Xamarin** installation.
## See Also ## See Also

Просмотреть файл

@ -0,0 +1,62 @@
---
title: Key Features
page_title: Key Features
position: 2
slug: templated-picker-key-features
---
# Key Features
The purpose of this help article is to show you the key features of the Templated(Custom) Picker control for Xamarin.
## DisplayMemberPath
Its purpose is to specify a property of the source object to serve as the visual representation of the spinner item.
## DisplayStringFormat
You can choose what text to display when an item from the spinner was picked through the Picker DisplayStringFormat property. For more info on this check the Key Features - Display String section.
## SelectedValue
The SelectedValue property is used when you have linked your RadTemplatedPicker to a data source, and you want to return a value of type object other than the one which is displayed.
## Example
Here is a sample example which shows how the *SelectedValue* and *DisplayMemberPath* can be used:
<snippet id='templatedpicker-keyfeatures' />
Here is a sample definition of the SelectorTemplate:
<snippet id='templatedpicker-keyfeatures-selectortemplate' />
and for the HeaderTemplate:
<snippet id='templatedpicker-keyfeatures-headertemplate' />
add the following Business model for the first spinner:
<snippet id='templatedpicker-country-businessmodel' />
add the following Business model for the second spinner:
<snippet id='templatedpicker-city-businessmodel' />
here is a sample definition of the ViewModel:
<snippet id='templatedpicker-viewmodel' />
In addition to this, you need to add the following namespace:
```XAML
xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
```
```C#
using Telerik.XamarinForms.Input;
## See Also
- [Templates]({%slug templated-picker-templates%})
- [Styling]({%slug templated-picker-styling%})

Просмотреть файл

@ -25,4 +25,6 @@ slug: templated-picker-overview
## See Also ## See Also
- [Getting Started]({%slug templated-picker-getting-started%}) - [Getting Started]({%slug templated-picker-getting-started%})
- [Templates]({%slug templated-picker-templates%})
- [Styling]({%slug templated-picker-styling%})

Просмотреть файл

@ -0,0 +1,31 @@
---
title: Styling
page_title: Styling
position: 4
slug: templated-picker-styling
---
# Styling
Using the SelectorSettings property of the RadPickerBase class, you could style the dialog(popup) through the following properties:
* **PopupViewStyle**(of type *Style* with target type is **telerikInput:PickerPopupContentView**):
* **HeaderStyle**(of type *Style* with target type is **telerikInput:PickerPopupHeaderView**):
* **HeaderLabelStyle**(of type *Style* with target type is **Label**):
* **FooterStyle**(of type *Style* with target type is **telerikInput:PickerPopupFooterView**):
* **AcceptButtonStyle**(of type *Style* with target type is **Button**):
* **CancelButtonStyle**(of type *Style* with target type is **Button**):
The SelectorSetting also provides the following properties for popup customization:
* **PopupOutsideBackgroundColor**(*Xamarin.Forms.Color*): Defines the color outside of the popup.
* **HeaderLabelText**(*string*): Specifies the text visualized in the popup header.
* **AcceptButtonText**(*string*): Defines the text visualized for the accept button. By default the text is *OK*.
* **CancelButtonText**(*string*): Defines the text visualized for the cancel button. By default the text is *Cancel*.
>important A sample Styling example can be found in the TemplatedPicker/Features folder of the [SDK Samples Browser application]({%slug developer-focused-examples%}).
## See Also
- [Getting Started]({%slug templated-picker-getting-started%})
- [Templates]({%slug templated-picker-templates%})

Просмотреть файл

@ -0,0 +1,64 @@
---
title: Templates
page_title: Templates
position: 3
slug: templated-picker-templates
---
# Templates
Templated Picker for Xamarin provides the following template:
* **SelectorTemplate**(*ControlTemplate*): Defines the template used for displaying the selector of the picker.
In addition to this you can define the following templates provided from the RadPickerBase class:
* **PlaceholderTemplate**(*ControlTemplate*): Defines the template visualized for the placeholder.
* **DisplayTemplate**(*ControlTemplate*): Defines the template visualized when the picked date/time is displayed.
And using RadPickerBase.SelectorSettings property(of type *Telerik.XamarinForms.Input.PickerPopupSelectorSettings*) you can define the following templates:
* **HeaderTemplate**(*ControlTemplate*): Defines what will be displayed inside the dialog(popup) header.
* **FooterTemplate**(*ControlTemplate*): Defines what will be displayed inside the dialog(popup) footer.
## Example
Here is a sample Templated Picker definition:
<snippet id='templatedpicker-keyfeatures' />
### SelectorTemplate
Here is a sample definition of the SelectorTemplate:
<snippet id='templatedpicker-keyfeatures-selectortemplate' />
### HeaderTemplate:
<snippet id='templatedpicker-keyfeatures-headertemplate' />
add the following Business model for the first spinner:
<snippet id='templatedpicker-country-businessmodel' />
add the following Business model for the second spinner:
<snippet id='templatedpicker-city-businessmodel' />
here is a sample definition of the ViewModel:
<snippet id='templatedpicker-viewmodel' />
In addition to this, you need to add the following namespace:
```XAML
xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
```
```C#
using Telerik.XamarinForms.Input;
>important A sample Key Features example can be found in the TemplatedPicker/Features folder of the [SDK Samples Browser application]({%slug developer-focused-examples%}).
## See Also
- [Styling]({%slug templated-picker-styling%})

Просмотреть файл

@ -0,0 +1,140 @@
---
title: Load calendar appoinments data from JSON
description: deserialize appointment objects from JSON file
type: how-to
page_title: RadCalendar appointment from JSON
slug: appointment-from-json
position:
tags: calendar, appointment, JSON, deserialize, xamarin, telerik ui for xamarin, events, newtonsoft
ticketid: 1417911
res_type: kb
---
## Environment
<table>
<tbody>
<tr>
<td>Product Version</td>
<td>2019.3.1004.1</td>
</tr>
<tr>
<td>Product</td>
<td>Calendar for Xamarin</td>
</tr>
</tbody>
</table>
## Description
This article shows how to deserialize appointment objects from JSON.
## Solution
First, download NuGet packages for NewtonSoft library. More information about NewtonSoft can be found [here](https://www.newtonsoft.com/json).
Create new JSON file with name "Source.json" to our project and change its Build Action to "Embedded resource".
Here is a sample how our JSON file is stuctured.
```JSON
[
{
"Title": "Meeting with Tom",
"Detail": "Sea Garden",
"StartDate": "2019-10-07T00:00:00Z",
"EndDate": "2019-10-07T01:00:00Z",
"Color": "Red",
"IsAllDay": true
},
{
"Title": "Lunch with Sara",
"Detail": "Restaurant",
"StartDate": "2019-10-08T00:00:00Z",
"EndDate": "2019-10-08T01:00:00Z",
"Color": "Blue",
"IsAllDay": true
},
{
"Title": "Elle Birthday",
"StartDate": "2019-10-09T00:00:00Z",
"EndDate": "2019-10-09T01:00:00Z",
"Color": "Green",
"IsAllDay": false
}
]
```
Add the RadCalendar in the Main.xaml file.
```XAML
<telerikInput:RadCalendar x:Name="calendar"/>
```
After that lets create a class that will convert inconsistent JSON data like Colors.
```C#
public class AppointmentJsonConverter : JsonConverter<Appointment>
{
public override Appointment ReadJson(JsonReader reader, Type objectType, Appointment existingValue, bool hasExistingValue, JsonSerializer serializer)
{
JObject jObject = JObject.Load(reader);
var title = jObject["Title"].Value<string>();
String detail = null;
if (jObject["Detail"] != null)
{
detail = jObject["Detail"].Value<string>();
}
var startDate = jObject["StartDate"].Value<DateTime>();
var endDate = jObject["EndDate"].Value<DateTime>();
var colorTypeConverter = new ColorTypeConverter();
var color = (Color)colorTypeConverter.ConvertFromInvariantString(jObject["Color"].Value<string>());
return new Appointment()
{
Title = title,
Detail = detail,
StartDate = startDate,
EndDate = endDate,
Color = color
};
}
public override void WriteJson(JsonWriter writer, Appointment value, JsonSerializer serializer)
{
throw new NotImplementedException();
}
}
```
Finally, create a method named "GetJsonData()" which uses NewtonSoft library and deserializes the appointment objects in it.
```C#
public partial class MainPage : ContentPage
{
public MainPage()
{
InitializeComponent();
this.GetJsonData();
}
private void GetJsonData()
{
string jsonFileName = "Source.json";
ObservableCollection<Appointment> objAppointmentList = new ObservableCollection<Appointment>();
var assembly = typeof(MainPage).GetTypeInfo().Assembly;
Stream stream = assembly.GetManifestResourceStream($"{assembly.GetName().Name}.{jsonFileName}");
using (var reader = new System.IO.StreamReader(stream))
{
var jsonString = reader.ReadToEnd();
objAppointmentList = JsonConvert.DeserializeObject<ObservableCollection<Appointment>>(jsonString, new AppointmentJsonConverter());
}
this.calendar.AppointmentsSource = objAppointmentList;
}
}
```