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Silverlight 6 Hosting Denmark - HostForLIFE.eu :: How to Get and Set the Control's Coordinate

clock April 29, 2015 06:40 by author Rebecca

Unlike normal C#, in Silverlight, you can't access a control's coordinate through the object.Location.X and object.Location.Y. Instead, it is more troublesome to get and set the values. So this tutorial will tell you wow to get and set the control's coordinate/location/position.

For example, if you want to add Label on the GUI through the code instead of XAML, you have to do the following codes:

          Label[] arrayScores = new Label[MAX_PLAYERS]; //MAX_PLAYERS = 4
          for (int i = 0; i < arrayScores.Length; i++)
                {
                    arrayScores[i] = new Label();
                    arrayScores[i].Name = "Scores" + i;
                    arrayScores[i].Width = 50;
                    arrayScores[i].Height = 30;
                }

But that's not enough, you haven't set the coordinates of the Labels. You might think that adding the remaining codes at anywhere can do the job. However, it does not. Remember to put the coordinates setting code 'AFTER' the page is loaded.

Step 1

Add this.Loaded event in the constructor after the InitializeComponent()

    public MainPage()
            {
                InitializeComponent();
                ...
                ...
                this.Loaded += new RoutedEventHandler(MainPage_Loaded);
            }

Step 2

Set coordinates using CANVAS: set position, then add into canvas.

void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            Canvas.SetLeft(arrayScores[0], SCORE_OFFSET_LEFT);
            Canvas.SetLeft(arrayScores[1], SCORE_OFFSET_LEFT);
            Canvas.SetLeft(arrayScores[2], SCORE_OFFSET_LEFT);
            Canvas.SetLeft(arrayScores[3], SCORE_OFFSET_LEFT);
            canvas1.Children.Add(arrayScores[0]);
            canvas2.Children.Add(arrayScores[1]);
            canvas3.Children.Add(arrayScores[2]);
            canvas4.Children.Add(arrayScores[3]);
        }

That's all! And you're done!

HostForLIFE.eu Silverlight 6 Hosting
HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes. We have customers from around the globe, spread across every continent. We serve the hosting needs of the business and professional, government and nonprofit, entertainment and personal use market segments.



Silverlight with Free ASP.NET Hosting - HostForLIFE.eu :: How to Make Silverlight Overlay Notification

clock April 22, 2015 07:01 by author Rebecca

Most of us do not like applications that continuosly bothering with popup messages to make us aware that something happened. Sometimes, a message box coming up saying "Changes were saved succesfully" right after pressing the save button, this condition is so bothering because our work can be interrupted by the unimportant notification box. Maybe, we better would like to be told that it worked if it allows us to keep going or you'd better be told if something went wrong.

For example, during Christmas a lot of messages full of best wishes are going around. You can sent one of those to one friend and after a while an Overlay Notification appeared at the bottom of your screen saying "Message received by [contact]". So, in this post, I will tell you how to make that kind of notification in Silverlight which isn't keep bothering you while you were working on something.

Step 1

First, let us create a User Control. The control will be the already mentioned Overlay Notification. You canl make it appear and disappear after a while without user interaction. This could be the XAML code:

 <UserControl x:Class="SilverlightTestApp.Controls.OverlayNotification"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
   
    <UserControl.Resources>
        <Storyboard x:Name="ShowMessage" Completed="ShowMessage_Completed">
            <DoubleAnimation
            Duration="00:00:06"
            From="0.00"
            To="1.00"
            AutoReverse="True"
            Storyboard.TargetName="Popup"
            Storyboard.TargetProperty="Opacity"/>           
        </Storyboard>       
    </UserControl.Resources>
   
    <Grid x:Name="LayoutRoot" Background="White" HorizontalAlignment="Center" >
        <Border BorderBrush="Black" BorderThickness="1" MinWidth="150" MaxWidth="550" MaxHeight="75"
                   CornerRadius="4" Background="Transparent" Visibility="Collapsed" Opacity="0" x:Name="Popup">
            <TextBlock x:Name="lblMessage" HorizontalAlignment="Center" TextWrapping="Wrap" MaxWidth="400" MaxHeight="75"></TextBlock>
        </Border>
    </Grid>   

</UserControl>

Step 2

You have a Storyboard that will be triggered whenever you want to show the Notification. It will last 6 seconds (plus another 6 because of the AutoReverse=true). And will change the Opacity of our notification area to give the impression that it fades in and out.

Then you already had a Border with rounded corners. You'll have to make it visible whenever you want to show the message and hide it when the Storyboard is done. Inside of this Border, you will have a Textblock where your message will be displayed.

Let's take a look at the code behind:

using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace SilverlightTestApp.Controls
{
    public partial class OverlayNotification : UserControl
    {
        private string _message;
        public string Message
        {
            get
            {
                return _message;
            }
            set
            {
                _message = value;
                lblMessage.Text = value;
                Popup.Visibility = Visibility.Visible;
                ShowMessage.Begin();
            }
        }

        private System.Windows.Media.Color _color;
        public System.Windows.Media.Color Color
        {
            get
            {
                return _color;
            }
            set
            {
                _color = value;
                var newBrush = new SolidColorBrush();
                newBrush.Color = value;
                lblMessage.Foreground = newBrush;
            }
        }

        public OverlayNotification()
        {
            InitializeComponent();
        }

        private void ShowMessage_Completed(object sender, System.EventArgs e)
        {
            Popup.Visibility = Visibility.Collapsed;
        }
    }
}

You will expose at least the Message property (you also have the Color property for the font). Notice that everytime you set the Message property we update the Textblock's text, make the Border visible and trigger the Storyboard. Also noticed that you can handle the Storyboard's completed event to hide the Border.

To use it, just add this new User Control into the view where you want to use it in the same way that you would place a Textbox or any other control:

<my:OverlayNotification x:Name="myOverlayNotification"/>

Then, whenever you want to show a Notification, just set the Message property with the message you want to display:

 myOverlayNotification.Color = Colors.Red;
 myOverlayNotification.Message = "This is a test notification";

Feel free to play around with it modifying the layout and appeareance of the control in the XAML or adding more properties to be able to customize it more, for example, adding a BackgroundColor property.

Silverlight 6 with Free ASP.NET Hosting
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Silverlight with Free ASP.NET Hosting - HostForLIFE.eu :: How to Create Simple Navigation in Silverlight ?

clock April 21, 2015 08:08 by author Peter

Navigation Framework is absolutely good however in some cases we have a tendency to don't need to use the Navigation Framework. This navigation technique may be used instead that provides simple Navigation. Add the following code in App.xaml:

private static Grid root    
public static void Navigate(UserControl newPage)
{
UserControl oldPage = root.Children[0] as UserControl;
root.Children.Add(newPage);
root.Children.Remove(oldPage);
}

Now, Edit the App.xaml as shown below:
Previous code: 
private void Application_Startup(object sender, StartupEventArgs e)
{
 this.RootVisual = new MainPage();
 }

Modified code:

private void Application_Startup(object sender, StartupEventArgs e)
{
root = new Grid();
root.Children.Add(new MainPage());
this.RootVisual = root;     
}


Create a new usercontrol NewPage . Add Button to the Page inorder to navigate to the home. equally produce a button within the MainPage.xaml as well inorder to navigate to the NewPage. within the Button Click event add the following code:
       App app = (App)Application.Current;
        App.Navigate(new NewPage());


Application.Current gets the System.Windows.Application object for this application. The new instance of the Page is passed to the Navigate method of App class. When we run the code we are able to navigate between the MainPage and also the NewPage.xaml.

 

Silverlight 6 with Free ASP.NET Hosting

Try our Silverlight 6 with Free ASP.NET Hosting today and your account will be setup soon! You can also take advantage of our Windows & ASP.NET Hosting support with Unlimited Domain, Unlimited Bandwidth, Unlimited Disk Space, etc. You will not be charged a cent for trying our service. Once your trial period is complete, you decide whether you'd like to continue.

 



Silverlight 6 with Free ASP.NET Hosting - HostForLIFE.eu :: How to Create a Progress Bar while Uploading File

clock April 15, 2015 06:04 by author Rebecca

When you worked with Silverlight to create an GUI to let the user to upload the file, it is important to create a progress bar to make the user aware of the uploading progress.Today, I will show you how to create a progress bar while uploading a file.

Here is the sample of the progress bar that I've created:

Severa