add entry and masked new features, 1 kb article for accordion

controls/entry/entry-key-features.md

@@ -36,6 +36,26 @@ RadEntry provides **IsPassword**(*bool*) property, which when set to True, repla
 
 <snippet id='entry-features-password'/>
 
+## Non-Editable State
+
+With R1 2021 Service Pack, RadEntry control provides a feature which allows you to choose whether the control will be editable or not - Read-Only state.
+
+* **IsReadOnly** *bool* property: Specifies whether the control will be in edit mode. The default value is `False`. If you want to restrict the control from editing, set the `IsReadOnly` to `True`
+
+### Example
+
+<snippet id='entry-features-read-only'/>
+
+## Max Length
+
+From r1 2021 Service Pack, the Radentry control has an additional feature, you can restrict the number of the symbols allowed to be entered in the input field. 
+
+* **MaxLength** (*int*) property: Specifies the maximum number of symbols allowed to be entered.
+
+### Example with MaxLength set to 10
+
+<snippet id='entry-features-maxlength'/>
+
 ## Keyboard
 
 The **Keyboard** property of type *Xamarin.Forms.Keyboard* allows you to define the type of the keyboard that will be visualized by the device.

controls/entry/entry-overview.md

@@ -17,8 +17,10 @@ slug: entry-overview
 
  * **Watermark**: RadEntry allows setting a placeholder text in the control, which could hint the users what is the input that is expected. For more details read [here]({% slug entry-key-features %}#watermark).
  * **Password functionality**: You could hide the characters a user is typing for privacy reasons, check [here]({% slug entry-key-features %}#password) for more details.
- * **Border styles**: RadEntry gives you the option to customize the look of the border around the input using the BorderStyle property, for more details read [here]({% slug entry-key-features %}#borderstyle).
  * **Keyboard support**: You could specify the virtual keyboard to be used with RadEntry considering the expected input.
+ * **Non-ediatble state**: Using a single property - `IsReadOnly`, you can specify whether the RadEntry control can be edited or not. Example and explanation can be found in [Key Features - Read-Only State]({%slug entry-key-features%}#non-editable-state).
+ * You can define the **maximum number of symbols** allowed in the RadEntry control. For detailed explanation and example check the [Key Features - Max Length]({%slug entry-key-features%}#max-length) section.
+ * **Border styles**: RadEntry gives you the option to customize the look of the border around the input using the BorderStyle property, for more details read [here]({% slug entry-key-features %}#borderstyle).
 
 ## See Also
 

controls/maskedinput/maskedinput-overview.md

@@ -18,9 +18,10 @@ slug: maskedinput-overview
 ## Key features ##
 
 * **Validation**: RadMaskedInput control uses a mask to distinguish between proper and improper user input. Validation mechanism can be based on custom regular expressions or built-in tokens. Read more about this in the [Tokens Validation]({% slug maskedinput-features-mask-tokens %}) and [RegEx Validation]({% slug maskedinput-features-mask-extensions %}) topics. 
-* **Mask Tokens**: You could choose from a set of predefined tokens in order to restrict user’s input.  For more details on the available tokens go to [Tokens Validation]({% slug maskedinput-features-mask-tokens %}) topic.
+* **Mask Tokens**: You can choose from a set of predefined tokens in order to restrict user’s input.  For more details on the available tokens go to [Tokens Validation]({% slug maskedinput-features-mask-tokens %}) topic.
 * **Commands**: MaskedInput allows you to attach commands that will be executed when certain actions, such as ApplyMaskStarted and ApplyMaskFinished occur. For detailed information on the matter go to [Commands]({% slug maskedinput-features-commands %}) article. 
-* **Customizable Validation UI**: With RadMaskedInput you could easily modify the appearance of the input-related errors, please refer to the [Validation UI]({% slug maskedinput-features-validation %}) topic for more details.
+* **Customizable Validation UI**: With RadMaskedInput you can easily modify the appearance of the input-related errors, please refer to the [Validation UI]({% slug maskedinput-features-validation %}) topic for more details.
+* **Keyboard support**: You can specify the virtual keyboard to be used with RadMaskedInput considering the expected input.
 
 ## See Also
 

controls/maskedinput/regex.md

@@ -25,7 +25,7 @@ Corresponding Regex | Usage
 
 ## Custom Regex Example
 
-**MaskedInput with custom RegEx validation**
+**MaskedInput with custom RegEx validation**. The `Keyboard` type is `Numeric`.
 
 <snippet id='maskedinput-features-regex-custom-validation-xaml'/>
 
@@ -38,7 +38,7 @@ The static class **Telerik.XamarinForms.Input.MaskedInput.MaskExtensions** conta
  
 ## Built-in Regex Example
 
-**Validation using the MaskExtensions class**
+**Validation using the MaskExtensions class**. The Masked type is Email. Note that the `Keyboard` type set is `Email`.
 
 <snippet id='maskedinput-features-regex-extensions-validation-xaml'/>
 

knowledge-base/accordion-add-items-dynamically.md

@@ -0,0 +1,77 @@
+---
+title: Add Items Dynamically to Accordion control
+description: How to add dynamically items to the accordion control
+type: how-to
+page_title: Add Items Dynamically to Accordion for Xamarin
+slug: accordion-add-items-dynamically
+position: 
+tags: xamarin, accordion, items, dynamically
+ticketid: 1507547
+res_type: kb
+---
+
+## Environment
+
+<table>
+	<tbody>
+		<tr>
+			<td>Product Version</td>
+			<td>2021.1 216.1</td>
+		</tr>
+		<tr>
+			<td>Product</td>
+			<td>Accordion for Xamarin</td>
+		</tr>
+	</tbody>
+</table>
+
+
+## Description
+
+The RadAccordion control supports adding multiple items dynamically. It provides `Children` property which is collection of `AccordionItem`.
+
+The `AccrodionItem` class provides properties for customization some of them are: `Header`, `HeaderText`, `Content`, which you can use to create items for specific scenarios.
+
+## Solution
+
+Here is the Accorsion definition in XAML
+
+```XAML
+<StackLayout>
+	<primitives:RadAccordion x:Name="Accordion"/>
+	<Button Text="Add new item"
+			Clicked="AddNewItem_Clicked" />
+</StackLayout>
+```
+
+you will need to add the following namespace:
+
+```XAML
+xmlns:primitives="clr-namespace:Telerik.XamarinForms.Primitives;assembly=Telerik.XamarinForms.Primitives"
+```
+
+### Add Items Dynamically to Accordion control
+
+We will use the a Button and on its Click event we will add the items:
+
+1. Create an instance of AccordionItem.
+
+2. Set its HeaderText and Content properties.
+
+3. Add the item to the accordion Children collection by using accordion.Children.Add().
+
+Here is the implementation inside the Button Click event
+
+```C#
+private void AddNewItem_Clicked(object sender, EventArgs e)
+{
+	Telerik.XamarinForms.Primitives.AccordionItem accordionItem = new Telerik.XamarinForms.Primitives.AccordionItem()
+	{
+		HeaderText = $"Item header {this.count}",
+		Content = new Label() { Text = $"Item content {this.count}" }
+	};
+
+	this.Accordion.Children.Add(accordionItem);
+	this.count++;
+}
+```