MouseDragElementBehavior: accessing coordinates RSS

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  a.pierini

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  MouseDragElementBehavior: accessing coordinates

  Aug 14, 2009 12:36 PM | LINK

  Hi,

  in this piece of code 

   

  <Rectangle x:Name="rctDrawingArea" Fill="#55FFFFFF" Stroke="Black">

  <i:Interaction.Behaviors>

  <il:MouseDragElementBehavior x:Name="mdebDrawingArea"  ConstrainToParentBounds="True"/>

  </i:Interaction.Behaviors>

  </Rectangle>

   is there a way to access mdebDrawingArea.X (and Y)?

  I mean my rectangle is inside a grid and once I dragged it around  I need to know its final offset. I thought to get access to X and Y property because I noticed Margin property of the rectangle is not updated.

   Thank you all!

  MouseDragElementBehavior

  If the reply helps you, please kindly mark the post as answer.
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• 

  DJanjicek

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  Re: MouseDragElementBehavior: accessing coordinates

  Aug 14, 2009 10:09 PM | LINK

  I'm not aware of your code, but if it's something like this http://www.rick-sammons.com/?tag=/mousedragelementbehavior you can use the eventhandler to receive the x/y coordinates which are exposed by MouseEventArgs

  void Bla(object sender, System.Windows.Forms.MouseEventArgs e)
  {
      MessageBox.Show("X: " + e.X.ToString() + " " + "Y: " + e.Y.ToString());
  }
  

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  Pravinkumar...

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  Re: MouseDragElementBehavior: accessing coordinates

  Aug 15, 2009 02:24 PM | LINK

  Hi,

  Here is a code where you can track what is the position of X and Y co-ordinates-

  1) I have applied the behavior by code. The class MouseDragElementBehavior contains few events. One of them is DragFinished. You can get the co-ordinates within that event as well. Look at the code below-

  USER Control-

  <UserControl

  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

  xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

  xmlns:il="clr-namespace:Microsoft.Expression.Interactivity.Layout;assembly=Microsoft.Expression.Interactions"

  x:Class="SampleProject.MainPage"

  Width="640" Height="480">

  <Grid x:Name="LayoutRoot" Background="White">

  <TextBlock x:Name="txtcordinates" FontSize="20" Foreground="Blue"/>

  <Rectangle Fill="Red" Stroke="Black" Margin="144,88,160,192" x:Name="rect1"/>

  </Grid>

  </UserControl>

  UserControl Code in CS file-

  Import a namespace in .CS file codebehind of MainPage.XAML

  using Microsoft.Expression.Interactivity.Layout;

  public partial class MainPage : UserControl
  	{
  		public MainPage()
  		{
  			// Required to initialize variables
  			InitializeComponent();
              this.Loaded += new RoutedEventHandler(MainPage_Loaded);
  		}
  
          void MainPage_Loaded(object sender, RoutedEventArgs e)
          {
              MouseDragElementBehavior behavior = new MouseDragElementBehavior();
              behavior.Attach(rect1);
              behavior.DragFinished += new MouseEventHandler(behavior_DragFinished);
           
          }
  
          void behavior_DragFinished(object sender, MouseEventArgs e)
          {
              Point getposition = e.GetPosition(rect1);
              txtcordinates.Text="Position X : " + getposition.X + "                " + "Position Y" + getposition.Y;
          }
  
         
  }

  Let me know If this works for you!!

  Thanks,

  Pravin

  "Please Mark as answered, If this answers your question"

  Silverlight 3.0