How to create an Editor in Xamarin?
Various applications need to be edited so that they can be created in a way that is convenient for the user. To do this, you can create an Editor in Xamarin. Forms using an XAML file.
 | 8 minute(s) read | Published on: Mar 24, 2021 Updated on: Dec 14, 2021 |
Applications also need an editor to be able to edit them and get the way users to want. Editors created in applications can make edits to audio, image, text, etc., at the request of users. In this tutorial, we will create an editor used to edit texts.
In this tutorial, you will learn that:
- How to create this in Xamarin.Forms using a XAML file?
- How to respond to text changes that occur in the Editors?
- How to define the Editor's behavior?
Note:
To do this tutorial, you must have already done the article and project How to create a StackLayout in Xamarin.
Learn how to design an Editor's in Xamarin-Forms using Visual Studio
The requirements for doing this tutorial for creating an Editor's in Xamarin-Forms are as follows:
- Install the latest version of Visual Studio 2019 on the system
- Install the latest version of Mobile development with.NET on the system
Learn how to make a StackLayout in Xamarin-Forms using Visual Studio
1- Open Visual Studio.
2- After opening Visual Studio, you need to create a new black Xamarin.Forms app.
3- Choose a name you create. The name chosen in this article is Editor's Tutorial.
Note:
It is best to choose names for projects and classes created.
Note:
The name chosen for the project must be the same as the name chosen for the solution, so choose the solution name EditorTutorial.
- After naming, you must ensure that the system and application support the .NET Standard mechanism for shared code.
This mechanism is used to share code written in Xamarin.Forms with the C # programming language. If your system and app do not support this mechanism, it cannot have multiple outputs on multiple platforms at once so that you can have multiple outputs on several different platforms at the same time.
- Click on MainPage-xaml in the Solution Explorer section of the EditorTutorial project and replace the code below with all the code in that section.
By entering this code, you specify a UI for the page, including an Editor's and a StackLayout.
To indicate the length of the Editor, HeightRequest is used in device-independent units.
- Press the Start controller or Ctrl-F5 key combination to see the result of the applied changes.
Learn how to respond to text changes made in the Editor's using Visual Studio
- To respond to the text changes made in the Editor's, you must change the definition of the Editor's in the MainPage.xaml file.
- To do this, you must enter the code to create an event handler for TextChanged and Completed.
Replace the code below with all the code in the MainPage-xaml file.
- Open MainPage-xaml in the EditorTutorial project from the Solution Explorer section.
- Then double click on MainPage.xaml.cs.
- Add the following event handlers for OnEditorTextChanged and OnEditorCompleted.
The OnEditorTextChanged method is executed when the code inside the Editor's changes. The Editor object is the sender argument used to start the TextChanged event.
The TextChangedEvenArgs argument provides the old and new values generated after the change.
If editing is complete, the OnEditorCompleted method will run.
When the code inside the Editorchanges, the OnEditorTextChanged method runs. The sender argument is the Editorobject, responsible for initiating the TextChanged event and can be accessed through the Editorobject. The TextChangedEvenArgs argument provides the old and new values of the text, before and after the change.
Note:
Any text that enters the Editor will be in the Text attribute.
- Press the Start controller or Ctrl-F5 key combination to see the result of the steps you did.
- Then enter text in the Editor. You will see that the TextChanged event starts.
- Unfocused the Editor. You will see that the Completed event starts.
Learn how to change the Editor behavior using Visual Studio
- To change the Editor behavior, you must change the Editor definition in the MainPage-xaml file.
- Replace the code below with all the code in the MainPage-xaml file.
By entering this code, you specify the Editor attributes. The value in the AutoSize attribute is TextChanges
is. The TextChanges value is set to AutoSize to increase the Editor's length by entering text and decreasing the length by deleting text.
The MaxLength attribute is used to specify a longitudinal constraint.
- Press the Start control or Ctrl + F5 key combination to see the result of the steps you did.
- Enter text in the editor. You will notice that adding text increases the editor's length and decreases as deleting text.
In this tutorial, you will learn that:
- How to create an Editor in Xamarin.Forms using a XAML file?
- How to respond to text changes that occur in the Editor?
- How to define the Editor's behavior?
Note:
To do this tutorial, you must have already done the article and project How to create a StackLayout in Xamarin.
Learn how to make an Editor in Xamarin.Forms using Visual-Studio for Mac
The requirements for doing this tutorial for creating an Editor in Xamarin.Forms are as follows:
- Install the latest version of Visual-Studio for Mac on the system
- Install the latest version of support platform for Android and iOS on the system
- Install the latest version of Xcode
- Open VisualStudio.
- After opening Visual Studio, you must create a new black Xamarin.Forms app.
- Choose a name for which you create. The name chosen in this article is EditorTutorial.
Note:
It is best to choose names for projects and classes created.
Note:
The name chosen for the project must be the same as the name chosen for the solution, so choose the solution name EditorTutorial.
- After naming, you must ensure that the system and application support the .NET Standard mechanism for shared code.
This mechanism is used to share code written in Xamarin.Forms with the C # programming language. If your system and app do not support this mechanism, it cannot have multiple outputs on multiple platforms at once so that you can have multiple outputs on several different platforms at the same time.
- Click on MainPage.xaml in the Solution pad section of the EditorTutorial project and replace the code listed below with all the code in that section.
By entering this code, you specify a UI for the page, including an Editor and a StackLayout.
To indicate the length of the Editor, HeightRequest is used in device-independent units.
- Press the Start button or Ctrl-F5 key combination to see the result of the applied changes.
Learn how to respond to text changes made the using Visual Studio for Mac
- To respond to text changes made in the Editor, you must change the Editor definition in the MainPage.xaml file.
- To do this, you must enter the code to create an event handler for TextChanged and Completed.
Replace the code below with all the code in the MainPage.xaml file.
- Open MainPage.xaml in the EditorTutorial project from the Solution Explorer section.
- Then double click on MainPage.xaml.cs.
- Add the following event handlers for OnEditorTextChanged and OnEditorCompleted.
The OnEditorTextChanged method is executed when the code inside the Editor changes. The Editor object is the sender argument used to start the TextChanged event.
The TextChangedEvenArgs argument provides the old and new values generated after the change.
If editing is complete, the OnEditorCompleted method will run.
When the code inside the Editor changes, the OnEditorTextChanged method runs. The sender argument is the Editor object responsible for initiating the TextChanged event and can be accessed through the Editor object. The TextChangedEvenArgs argument provides the old and new values of the text, before and after the change.
Note:
Any text that enters the Editor will be in the Text attribute.
- Press the Start button or Ctrl + F5 key combination to see the result of the steps you did.
- Then enter text in the Editor. You will see that the TextChanged event starts. Unfocused the Editor.
- You will see that the Completed event starts.
Learn how to change the behavior using Visual Studio for Mac
- To change the Editor behavior, you must change the Editor definition in the MainPage.xaml file.
- Replace the code below with all the code in the MainPage.xaml file.
By entering this code, you specify the Editor attributes. The value in the AutoSize attribute is TextChanges
is. The TextChanges value is set to AutoSize to increase the Editor's length by entering text and decreasing the length by deleting text.
The MaxLength attribute is used to specify a longitudinal constraint.
- Press the Start controller or Ctrl + F5 key combination to see the result of the steps you did.
- Enter text in the Editors. You will notice that adding text increases the length of the Editors and decreases as deleting text.
