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The image is cropped when the window is resized

I decided to migrate my application from WindForms to WPF and faced the following problem: My image is cropped inexplicably.
Can you help me? What am I doing wrong?
Before resizing
https://ibb.co/z4yYdJn
After resizing
https://ibb.co/6J60Sfc
<Window x:Class="ClientWPF.MainWindow"
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"
xmlns:local="clr-namespace:ClientWPF"
mc:Ignorable="d"
Title="Test WPF" Height="535" Width="567" Background="#FF1D1E20">
<Grid>
<Image x:Name="back_1" Source="/Resources/background_1.png" HorizontalAlignment="Left" VerticalAlignment="Top" Stretch="None"/>
<Image x:Name="back_2" Source="/Resources/background_2.png" HorizontalAlignment="Left" VerticalAlignment="Bottom" Stretch="None"/>
<Image Margin="192,75,188,236" Width="160" Height="160" Source="/Resources/logo.png" VerticalAlignment="Center" HorizontalAlignment="Center"/>
</Grid>
</Window>

I found my mistake. Image cropped due to property: Margin="192,75,188,236"

Text in label being cut off

Consider the below WPF -
The issue is the text that appears in the label is being cut off if it is longer than the width of the label.
XAML - label name is 'factTxt'
<Window x:Name="mainScreen" x:Class="FactsOnAll.MainWindow"
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"
xmlns:local="clr-namespace:FactsOnAll"
mc:Ignorable="d"
Title="Random Facts" Height="450" Width="800" Icon="Properties/checklist.png">
<Grid>
<Button x:Name="getFactBtn" Content="Get Random Fact" HorizontalAlignment="Left" Margin="304,331,0,0" VerticalAlignment="Top" Width="177" Click="getFactBtn_Click" FontSize="20" Background="#FF8ECF87" Foreground="#FF444444"/>
<Label x:Name="factTxt" Content="" Margin="10,98,10,0" VerticalAlignment="Top" HorizontalAlignment="Center" FontSize="20"/>
<Label x:Name="titleTxt" Content="Random Facts" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="772" Height="46" FontSize="24"/>
</Grid>
</Window>
Expect result
Allow the text to go to a new line. I thought increasing the height of the label would fix this but no luck.

The Label has no wrapping but a TextBlock.
You can just create custom content like, that will wrap automatically:
<Label Width="100">
<TextBlock Text="Get Random Fact" TextWrapping="Wrap"/>
</Label>

My content leaves my screen, how can I prevent this?

I am making a full-screen c# application, with WPF.
But my content is leaving my screen because i want the height and width of the application to be dynamic.
This is my current test:
<Window x:Class="examen.MainWindow"
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"
xmlns:local="clr-namespace:examen"
mc:Ignorable="d"
Background="#024886"
Title="MainWindow" WindowStyle="None" WindowState="Maximized" >
<Canvas>
<Rectangle Fill="#FBB510" Height="84" RadiusX="20" RadiusY="20" Stroke="Black"
VerticalAlignment="Bottom" MouseLeftButtonDown="Rectangle_MouseLeftButtonDown"
Canvas.Left="248" Width="89" Canvas.Top="242"/>
</Canvas>
</Window>
How can I make sure the content will stay at its place?

Try this solution...
Suround all of your windows controls with a ViewBox....
<Viewbox>
<Canvas>
<Rectangle Fill="#FBB510" Height="84" RadiusX="20" RadiusY="20" Stroke="Black" VerticalAlignment="Bottom" MouseLeftButtonDown="Rectangle_MouseLeftButtonDown" Canvas.Left="248" Width="89" Canvas.Top="242"/>
</Canvas>
</Viewbox>

How can set absolute position on stackpanel or grid in xaml WPF

Is it possible to set my StackPanel or Grid to be position absolute like CSS.
In CSS is have property Position of the elements and can set to be relative, absolute and is working good.
In XAML can make Grid, StackPanel to use position absolute.

You have to use Canvas in order to set absolute position in WPF.
In case of buttons in a window, here is a sample :
<Window x:Class="tobedeleted.MainWindow"
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"
Title="MainWindow" Height="350" Width="525">
<Canvas>
<Button Canvas.Left="10" Canvas.Bottom="20">Bottom left</Button>
</Canvas>
</Window>
The output is :
Feel free to ask if help is needed.

Absolute positioning defeats the purpose of WPF, but I agree, sometimes there is no other way so you have two basic options.
Elements under the root grid
Elements in a canvas that is the same size as the window (as Vasilievski pointed out)
Code example:
<Window x:Class="WpfApplication1.Window3"
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"
xmlns:local="clr-namespace:WpfApplication1"
mc:Ignorable="d"
Title="Window3" Height="300" Width="300">
<Grid>
<Rectangle Fill="Red" Width="100" Height="120"
HorizontalAlignment="Left"
VerticalAlignment="Top"
Panel.ZIndex="13"
Margin="12,34"
/>
<Rectangle Fill="Green" Width="100" Height="120"
HorizontalAlignment="Left"
VerticalAlignment="Top"
Margin="24,54"
/>
<Canvas>
<Rectangle Canvas.Left="5" Canvas.Top="5" Panel.ZIndex="2" Fill="Yellow" Width="120" Height="30" />
<Rectangle Canvas.Left="25" Canvas.Top="17" Panel.ZIndex="0" Fill="Blue" Width="120" Height="30" />
</Canvas>
</Grid>
</Window>

try this.
<StackPanel>
<Canvas>
<TextBlock Canvas.Left="10" Canvas.Top="6" Text="Choose a value from combobox:" Width="180"/>
<ComboBox Canvas.Left="190" Canvas.Top="4" Width="180"></ComboBox>
</Canvas>
</StackPanel>
RESULT:

How to disable resizing of a UserControl in WPF

How to:
Disable resizing for this usercontrol. In other words, when the user grabs the corners or the sides of this usercontrol with a mouse, I dont want the user to be able to change the size of the usercontrol?
Or if there is no way to stop resizing then how do I only allow the right side of the usercontrol dragged?
<UserControl x:Class="MyEditor.MyDialog"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="152" d:DesignWidth="590" HorizontalContentAlignment="Right" MinWidth="{Binding ElementName=VariableType}" MinHeight="{Binding RelativeSource={RelativeSource Self}}">
<Grid Width="591" Height="147" MinWidth="{Binding ElementName=VariableTypeTextBox}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="137*" />
<ColumnDefinition Width="454*" MinWidth="250" />
</Grid.ColumnDefinitions>
<Button Content="Cancel" Height="23" Margin="0,94,7,0" Name="CancelButton" VerticalAlignment="Top" Click="CancelButton_Click" Grid.Column="1" HorizontalAlignment="Right" Width="75" HorizontalContentAlignment="Center" VerticalContentAlignment="Top" />
<Button Content="Create" Height="23" Margin="0,94,108,0" Name="CreateButton" VerticalAlignment="Top" Click="CreateButton_Click" Grid.Column="1" HorizontalAlignment="Right" Width="75" HorizontalContentAlignment="Center" VerticalContentAlignment="Top" />
<Label Content="Variable Name " Height="28" Margin="0,12,29,0" Name="VariableName" VerticalAlignment="Top" HorizontalAlignment="Right" Width="96" Target="{Binding}" HorizontalContentAlignment="Right" />
<TextBox Height="29" Margin="0,11,7,0" Name="VarNameTextBox" VerticalAlignment="Top" KeyDown="OnKeyDownHandler" MouseLeave="MouseLeaveHandler" LostFocus="LostFocusHandler" Grid.Column="1" HorizontalAlignment="Stretch" />
<Label Content="Variable Type" Height="28" Margin="0,0,29,73" Name="VariableType" VerticalAlignment="Bottom" HorizontalContentAlignment="Right" HorizontalAlignment="Right" Width="96" />
<TextBox Height="23" Margin="0,51,7,0" Name="VariableTypeTextBox" VerticalAlignment="Top" IsReadOnly="True" Background="Silver" Foreground="Black" Grid.Column="1" HorizontalAlignment="Stretch" Width="AUTO" />
</Grid>

You've pasted the XAML for a UserControl, but your question is asking about a Window. So, you will need to place your UserControl inside a Window that is set up to not allow resizing.
A WPF Window has a ResizeMode property, which can be one of the following:
NoResize
CanMinimize
CanResize (default)
CanResizeWithGrip
You will want NoResize.
Example:
<Window x:Class="MyEditor.Views.EditorWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:views="clr-namespace:MyEditor"
mc:Ignorable="d"
ResizeMode="NoResize"
Title="Editor Window">
<views:MyDialog />
</Window>
Please see the documentation for more details.

Simply set the MinWidth/MaxWidth and MinHeight/MaxHeight properties to your required value.

For Disabling : ResizeMode="CanMinimize"
<Window x:Class="XXXXXX.MainWindow"
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"
xmlns:local="clr-namespace:XXXXXXX"
mc:Ignorable="d"
WindowState="Maximized"
ResizeMode="CanMinimize"
Title="Window">

Here is a simple solution:
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
((Window)Parent).ResizeMode = ResizeMode.NoResize;
}
Or an attached property on the UserControl if you use the Prism Library:
<prism:Dialog.WindowStyle>
<Style TargetType="Window">
<Setter Property="prism:Dialog.WindowStartupLocation"
Value="CenterScreen" />
<Setter Property="ResizeMode" Value="NoResize"/>
<Setter Property="ShowInTaskbar" Value="False"/>
Setter Property="SizeToContent" Value="WidthAndHeight"/>
</Style>
</prism:Dialog.WindowStyle>