it's worked thanks bro have a nice day

There are 2 scenarios for handling file in the link you mentioned.

1. Files embedded as resources
   It just works on Tizen as well.

2. Saving and loading files
   In order to acess Tizen file system, you shoud aware of this.
   ApplicationInfo API are also helpful to you

@FredyWenger said:
@BhagatSehkhawat, @R888
Please read my posting from June 2015...
Normally you have to create a webservice that accesses the data on a SQL-Server.
In your webservice you implement methods that can be called from you app.
@BhagatSehkhawat:
In your question, the wcf webservice ( 1 ) have to access the SQL-Server ( 2 ) and you have to implement methods in the wcf webservice that can be called from your app (via httpclient in the app).
But, if you don't already have the wcf webservice, I strongly recommend you, you create a Json-webservice instead of a wcf webservice (as this is the furture.
So @both:
You have to create a webservice first (out of the "Xamarin-Universe"), where you implement your methods.
=> E.g. an asp.net webservice -> search on the internet for informations
Then, you have to implement the access to your webservice in your app (therefore you will find many informations in the Xamarin forums)
Hope this helps

Years later, your comment is still helpful @FredyWenger.

Hi @FredyWenger,
Thank You for your useful information.

How about you take a look at your other postings where you promote your blog post about these apis?

After some more research, i found that the problem was the return of a string in the Converter...
When binding the LayoutBounds, conveter should return Xamarin.Forms.Rectangle object...
So the converter should look like this:

public class TestStepWidgetConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        try
        {
            var val = double.Parse(parameter.ToString());

            return new Rectangle(val, -5, 5, 20);
        }
        catch
        {
            return new Rectangle(0.5, -5, 5, 20);
        }
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

@amirh379 Do you want to achieve the result like following GIF?

If so, please open the like Tabbar.xml following screenshot

Change the android:background="@drawable/shape_indicator_radius"

Add the shape_indicator_radius.xml in the drawable folder.

 <?xml version="1.0" encoding="utf-8" ?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"  >
<!--add the Radius-->
<corners android:bottomRightRadius="20dp" android:bottomLeftRadius="20dp"/>
<!--set the Tabbed bar color-->
<solid
     android:color="@color/tv_color_blue"/>
 </shape>

To change the textcolor when selecting, try to the platform-specific method.

public partial class TabbedPage1 : Xamarin.Forms.TabbedPage
{
    public TabbedPage1()
    {
        InitializeComponent();

        this.On<Android>().SetBarItemColor(Color.Red);
        this.On<Android>().SetBarSelectedItemColor(Color.White);
    }
}

Refer to: https://github.com/xamarin/Xamarin.Forms/pull/4899

However, it doesn't seem to work for the custom renderer. To change the font style of the tab, you could do this via the configuration in Tabbar.xml.

<android.support.design.widget.TabLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/sliding_tabs"
    ...
    app:tabTextAppearance="@style/CustomTab"
    .../>

styles.xml

<style name="CustomTab" parent="@android:style/Widget.Holo.ActionBar.TabText">
    <item name="android:textSize">15sp</item>
  </style>