Details

Written by: Stanko Milosev

Category: WPF

Published: 14 January 2014

Last Updated: 14 January 2014

Hits: 5240

First add a canvas:

Set width and height to auto:

Add a button.

Now comes a tricky part, at least for me, since I don't know how to delete margins from Visual Studio GUI, so I had to do it manually from XAML. So, here is my XAML:

<Window x:Class="DragNdrop.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Canvas Margin="20" HorizontalAlignment="Left" VerticalAlignment="Top">
            <Button Content="Button" 
                    PreviewMouseLeftButtonDown="Button_PreviewMouseLeftButtonDown" 
                    PreviewMouseLeftButtonUp="Button_PreviewMouseLeftButtonUp" 
                    PreviewMouseMove="Button_PreviewMouseMove"/>
        </Canvas>
    </Grid>
</Window>

Notice that margins from button node are deleted, and margin is equal 20 on canvas (Margin="20"), otherwise button will be away from mouse pointer.

Code looks like this:

public partial class MainWindow : Window
{
	private double FirstXPos;
	private double FirstYPos;
	private double FirstArrowXPos;
	private double FirstArrowYPos;
	private object MovingObject;
	public MainWindow()
	{
		InitializeComponent();
	}

	private void Button_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
	{
		FirstXPos = e.GetPosition(sender as Control).X;
		FirstYPos = e.GetPosition(sender as Control).Y;
		FirstArrowXPos = e.GetPosition((sender as Control).Parent as Control).X - FirstXPos - 20;
		FirstArrowYPos = e.GetPosition((sender as Control).Parent as Control).Y - FirstYPos - 20;
		MovingObject = sender;
	}

	private void Button_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
	{
		MovingObject = null;
	}

	private void Button_PreviewMouseMove(object sender, MouseEventArgs e)
	{
		if (e.LeftButton == MouseButtonState.Pressed && sender == MovingObject)
		{
			(sender as Control).SetValue(Canvas.LeftProperty,
				 e.GetPosition((sender as Control).Parent as Control).X - FirstXPos - 20);

			(sender as Control).SetValue(Canvas.TopProperty,
				 e.GetPosition((sender as Control).Parent as Control).Y - FirstYPos - 20);
		}
	}
}

Code you can download from here, dirty as usual and made in VS 2013

Details

Written by: Stanko Milosev

Category: WPF

Published: 21 October 2013

Last Updated: 21 October 2013

Hits: 5149

<Grid>
	<TextBox Height="194" HorizontalAlignment="Stretch" Name="textBox1" VerticalAlignment="Bottom" TextWrapping="Wrap" AcceptsReturn="True" />
</Grid>

Most important values are:

TextWrapping="Wrap"

and

AcceptsReturn="True"

Or in properties:

and

Details

Written by: Stanko Milosev

Category: WPF

Published: 30 November -0001

Last Updated: 14 October 2013

Hits: 1577

After creating new WPF project install Windows Azure Storage through NuGet:

You will need ServiceRuntime also, but that you have to install manually. Right click on "References":

Then click on browse and go, in my case, to C:\Program Files\Microsoft SDKs\Windows Azure\.NET SDK\2012-10\ref. Of course, first you have to install Azure SDK.

In my case, since I need this just as a sample application, add one button, and create click event for that button (double click on the button).

In same file (in my case \WpfApplication3\MainWindow.xaml.cs) add next three lines in your using list:

using Microsoft.WindowsAzure;
using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.Table;
using Microsoft.WindowsAzure.ServiceRuntime;