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WPF stretch image without Stretch="Fill"

I am trying to make responsive WPF app which shows image. One of the program's functionalities is selecting a piece of an image by clicking and draging the mouse. I use Point p = e.GetPosition((IInputElement)sender); to find cursor position, and I found out I cannot use Stretch="Fill" because it causes the MouseUp cursor to select a little lower than it should and MouseMove is also inaccurate (I have to drag the mouse a lot further than I should). On the internet, I found the reason for this behavior that you cannot use Fill and have to use None instead. However, the image is much smaller without Fill.
This is my XAML:
<Grid Grid.Row = "1"
Grid.Column="1"
HorizontalAlignment="Left"
VerticalAlignment= "Top"
Margin="0,30,0,0">
<Image x:Name= "image1"
Grid.Row = "1"
Grid.Column="1"
Cursor="Cross"
MinWidth="300"
MinHeight="300"
MaxWidth="512"
MaxHeight= "512"
Stretch = "None"
RenderOptions.BitmapScalingMode="NearestNeighbor"
RenderOptions.EdgeMode="Aliased"
VerticalAlignment="Top"
MouseDown="picOriginal_MouseDown"
MouseMove="picOriginal_MouseMove"
MouseUp="picOriginal_MouseUp" />
</Grid>
I don't know how to embed my image so that in the window view it fills the grid without this Fill property and at the same time is responsive for fullscreen. Should I wrap Image with something else from the WPF toolbox?

I find it easier using the background of the picture box to be the image then use the stretch in that. Alternatively, you could use the image with any of the other options, try using the the properties tab, here are the other stretch options tho: None, Fill, Uniform, UniformToFill
Tell me if this helps, tryna get rep, thanks!

ScrollViewer scrollbars not appearing

I'm working on updating previously working app. Testing shows the ScrollViewer acting oddly when the Zoom makes part of the contained images fall off the screen. The original app was created with VS 2013 as a Universal Windows app. The new app is created with VS 2015 as a Universal Windows app though the target build has been shifted to the anniversary release.
My XAML is defined so:
<ScrollViewer x:Name="SV1" Grid.Row="1" HorizontalScrollBarVisibility="Auto"
VerticalScrollBarVisibility="Auto"
SizeChanged="SV1_SizeChanged" ZoomMode="Enabled" >
<StackPanel x:Name="ImagePanel" Orientation="Horizontal" HorizontalAlignment="Center"
VerticalAlignment="Top" >
<Image x:Name="ImageLeft" Stretch="Uniform" />
<Image x:Name="ImageRight" Stretch="Uniform" />
</StackPanel>
</ScrollViewer>
The user can change the ZoomLevel of the ScrollViewer. The zoom change is implemented using SV1.ChangeView(null, null, zoomFactor).
The images visibly change size on the screen, but as they fall off the right or bottom the scrollbars don't appear. Even changing the visibility properties to "Visible" instead of "Auto" doesn't cause the scrollbars to appear. When the size changes and for a brief instant a thin line will appear where the bars should be and then disappear. Additionally, user input that would normally scroll like moving the mouse wheel does nothing.
Based on other commentary, I've tried replacing the StackPanel with a Grid with no apparent effect.
I'm drawing a blank. Any ideas?

It appears the answer is the next control which shares the same visual space needs to be set to Visibility="Collapsed" in the XAML. The visibility is controlled programmatically, but without the XAML tag the scrollbars of the previous control don't appear and with the tag they do.

Scrolling image inside ScrollViewer on tablet (Windows Store app, C#)

Inside ScrollViewer control I have a large image and I want to use scroll bars to move that image inside ScrollViewer. See XAML code below:
<ScrollViewer HorizontalAlignment="Left" Height="282" Width="554"
HorizontalScrollBarVisibility="Visible" VerticalScrollMode="Enabled">
<Image HorizontalAlignment="Left" Margin="0,0,0,0" VerticalAlignment="Top"
Source="Assets/big_image.jpg" Stretch="None" ManipulationMode="None"/>
</ScrollViewer>
This works fine on my PC. I can use mouse to move image inside ScrollViewer by using scrollbars. But when I deploy application on the tablet, I cannot do anything. The scrollbars are not visible and I cannot use gestures to manipulate the image. Does anyone know how can I solve this problem?

There is a Microsoft example with similar functionality:
http://code.msdn.microsoft.com/windowsapps/XAML-ScrollViewer-pan-and-949d29e9
This example uses a Scrollviewer with an inside image to show the capabilities of the ScrollViewer control to pan and zoom. I tried it with a tablet and it works well.
Hope it helps.

XY coordinates of WPF button move on runtime?

I got a pretty weird behavior of my WPF application: the XY position of my button on runtime seems to be divergent to that when I set it in my xaml-Editor of Visual Studio (is there a name for it btw?)
It has no alignments set or panels around it, i have only set it by margins. My button has the following code:
<Button Content="OK" Height="23" Margin="213,319,4,7" Name="button3" Width="75" IsCancel="True" Click="button3_Click" IsEnabled="False" />
Edit:
The margins are fixed because it is a non-resizable dialog. As you can see, the button's slightly moved to the left and up:
xaml-Editor:
Runtime:
Why is that and how can I fix it?

I guess the below link about the Alignment, Margins, and Padding Overview will help you to understand how it is works?
Else place a panel wrappers such as Stackpanel, Wrappand or Grid. It's suitable to work the layout of the controls
EDIT : The problem was with the ResizeMode="NoResize". If you remve this attribute in Window tag, then alignment would be good
Link to Refer

Man, that's the worst way to set the position of a UI element in WPF!
Refactor your XAML to something like this:
<Grid Margin="5">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<ListView Grid.Row="0" Name="TableList" Margin="5"/>
<Button Grid.Row="1" Name="button3" Content="OK"
Margin="5"
Width="75"
HorizontalAlignment="Right"/>
</Grid>
You see? There is a Grid that handles the position of all its children (in this case, a ListView and a Button).
The Button is put on the second Row, aligned to the right (HorizontalAlignment property).
Both the Grid and its children have Margin=5. This guarantees that the margin of every children is equal respect to the adiacent children and to other controls outside the Grid.
Also, the ListView and the Button are perfectly aligned.
The problem with your approach is that you set the Button Width and its Left Margin and its Right Margin. Maybe the total is not correct because the border of the Window eats some pixel, or simply WPF can't handle all the informations together and misses the calculation, who knows, but the consequence is that you must leave at least one parameter free. In my example, I left free the Margins from the Window. The Margin=5 sets only the relative Margin respect to the other controls, but how much the Button is distant from the left border of the Window is something I leave to the WPF graphical engine to calculate.

How do I control clipping in C# or XAML when using UniformToFill with an image

I have an image control in a resizable window with its stretch property set to UniformToFill.
<Image Name="some_image" Stretch="UniformToFill" Margin="0,0,0,0" />
The clipping window is pegged to the top left of the image; resizing chops off the right and bottom of the image.
I want the image to be clipped equally on all sides. Am I being dense and overlooking an obvious solution?
How do I control how the image gets clipped?
(Unrelated: This is my first post to stackoverflow. I just wanted to start off saying, thanks, this site has been amazing resource for me)

The HorizontalAlignment and VerticalAlignment property determine this behavior with an image control.
<Image Name="some_image" Stretch="UniformToFill" Margin="0,0,0,0" HorizontalAlignment="Center" VerticalAlignment="Center" />
Guess i was being dense!