How to make all controls resize accordingly proportionally when window is maximized

Question

When I clicked on the maximize button the window is maximized but the controls are not resized proportionally  What is the best way to make the controls resize accordingly  I am using MVVM   Here is my code    lt Window x Class  DataTransfer View Window1          xmlns  http   schemas microsoft com winfx 2006 xaml presentation          xmlns x  http   schemas microsoft com winfx 2006 xaml          Icon   DataTransfer component View Images ms msnexplore gif           ResizeMode  CanResizeWithGrip          Title  Window1  Height  500  Width  600  gt       lt  --Style   DynamicResource OfficeStyle  -- gt       lt Window Resources gt           lt ResourceDictionary gt               lt ResourceDictionary MergedDictionaries gt                   lt  -- lt ResourceDictionary Source   DataTransfer component View WindowBase xaml    gt -- gt                   lt  -- lt ResourceDictionary Source   DataTransfer component Themes WPFThemes CalendarResource xaml    gt -- gt               lt  ResourceDictionary MergedDictionaries gt           lt  ResourceDictionary gt       lt  Window Resources gt        lt Grid gt       lt Grid RowDefinitions gt           lt RowDefinition Height       gt       lt  Grid RowDefinitions gt       lt Grid ColumnDefinitions gt           lt ColumnDefinition Width        gt       lt  Grid ColumnDefinitions gt           lt Button Content  Button  HorizontalAlignment  Left  Margin  52 28 0 0  VerticalAlignment  Top  Width  75  Height  22    gt           lt DatePicker Name  dp  HorizontalAlignment  Left  Margin  175 25 0 0  VerticalAlignment  Top  Width  123  Text  aaa  GotFocus  DateGotFocused  LostFocus  OnLeaveArchiveDate   gt           lt Calendar HorizontalAlignment  Left  Margin  47 162 0 0  VerticalAlignment  Top   gt           lt TextBox Name  t1  HorizontalAlignment  Left  Height  23  Margin  337 23 0 0  TextWrapping  Wrap  Text  TextBox  VerticalAlignment  Top  Width  120  LostFocus  LeaveField    gt           lt RadioButton Content  RadioButton  HorizontalAlignment  Left  Margin  88 92 0 0  VerticalAlignment  Top   gt           lt CheckBox Content  CheckBox  HorizontalAlignment  Left  Margin  252 96 0 0  VerticalAlignment  Top   gt           lt ComboBox Name  combo  IsEditable  False  Text  aaa  IsReadOnly  True                    HorizontalAlignment  Left  Margin  337 89 0 0  VerticalAlignment  Top  Width  120                     Focusable  True  GotFocus  ComboBoxGotFocused   gt               lt ComboBoxItem gt January lt  ComboBoxItem gt               lt ComboBoxItem gt February lt  ComboBoxItem gt           lt  ComboBox gt           lt TextBlock HorizontalAlignment  Left  Height  40  Margin  260 184 0 0  TextWrapping  Wrap  Text  Text Block  VerticalAlignment  Top  Width  257   gt        lt  Grid gt   lt  Window gt

User · Answer

Well  it s fairly simple to do   On the window resize event handler  calculate how much the window has grown shrunk  and use that fraction to adjust 1  Height  2  Width  3  Canvas Top  4  Canvas Left properties of all the child controls inside the canvas   Here s the code   private void window1 SizeChanged object sender  SizeChangedEventArgs e                        myCanvas Width   e NewSize Width              myCanvas Height   e NewSize Height               double xChange   1  yChange   1               if  e PreviousSize Width    0              xChange    e NewSize Width e PreviousSize Width                if  e PreviousSize Height    0              yChange    e NewSize Height   e PreviousSize Height                foreach  FrameworkElement fe in myCanvas Children                                      because I didn t want to resize the grid I m having inside the canvas in this particular instance   doing that from xaml                                 if  fe is Grid    false                                        fe Height   fe ActualHeight   yChange                      fe Width   fe ActualWidth   xChange                       Canvas SetTop fe  Canvas GetTop fe    yChange                       Canvas SetLeft fe  Canvas GetLeft fe    xChange

User · Answer

In WPF there are certain  container  controls that automatically resize their contents and there are some that don t   Here are some that do not resize their contents  I m guessing that you are using one or more of these    StackPanel WrapPanel Canvas TabControl   Here are some that do resize their contents   Grid UniformGrid DockPanel   Therefore  it is almost always preferable to use a Grid instead of a StackPanel unless you do not want automatic resizing to occur   Please note that it is still possible for a Grid to not size its inner controls    it all depends on your Grid RowDefinition and Grid ColumnDefinition settings    lt Grid gt       lt Grid RowDefinitions gt           lt RowDefinition Height  100    gt   lt  -- lt  lt  lt  Exact Height    won t resize -- gt           lt RowDefinition Height  Auto    gt   lt  -- lt  lt  lt  Will resize to the size of contents -- gt           lt RowDefinition Height       gt   lt  -- lt  lt  lt  Will resize taking all remaining space -- gt       lt  Grid RowDefinitions gt   lt  Grid gt    You can find out more about the Grid control from the Grid Class page on MSDN  You can also find out more about these container controls from the WPF Container Controls Overview page on MSDN   Further resizing can be achieved using the FrameworkElement HorizontalAlignment and FrameworkElement VerticalAlignment properties  The default value of these properties is Stretch which will stretch elements to fit the size of their containing controls  However  when they are set to any other value  the elements will not stretch   UPDATE      In response to the questions in your comment   Use the Grid RowDefinition and Grid ColumnDefinition settings to organise a basic structure first    it is common to add Grid controls into the cells of outer Grid controls if need be  You can also use the Grid ColumnSpan and Grid RowSpan properties to enable controls to span multiple columns and or rows of a Grid   It is most common to have at least one row column with a Height Width of     which will fill all remaining space  but you can have two or more with this setting  in which case the remaining space will be split between the two  or more  rows columns   Auto  is a good setting to use for the rows columns that are not set to        but it really depends on how you want the layout to be   There is no Auto setting that you can use on the controls in the cells  but this is just as well  because we want the Grid to size the controls for us    therefore  we don t want to set the Height or Width of these controls at all   The point that I made about the FrameworkElement HorizontalAlignment and FrameworkElement VerticalAlignment properties was just to let you know of their existence    as their default value is already Stretch  you don t generally need to set them explicitly   The Margin property is generally just used to space your controls out evenly    if you drag and drop controls from the Visual Studio Toolbox  VS will set the Margin property to place your control exactly where you dropped it but generally  this is not what we want as it will mess with the auto sizing of controls  If you do this  then just delete or edit the Margin property to suit your needs

User · Answer

Just thought i d share this with anyone who needs more clarity on how to achieve this  myCanvas is a Canvas control and Parent to all other controllers  This code works to  neatly resize to any resolution from 1366 x 768 upward  Tested up to 4k resolution 4096 x 2160 Take note of all the MainWindow property settings  WindowStartupLocation  SizeToContent and WindowState  - important for this to work correctly - WindowState for my user case requirement was Maximized xaml  lt Window x Name  quot mainWindow quot       xmlns  quot http   schemas microsoft com winfx 2006 xaml presentation quot      xmlns x  quot http   schemas microsoft com winfx 2006 xaml quot      xmlns local  quot clr-namespace MyApp quot       xmlns ed  quot http   schemas microsoft com expression 2010 drawing quot      xmlns d  quot http   schemas microsoft com expression blend 2008 quot  xmlns mc  quot http   schemas openxmlformats org markup-compatibility 2006 quot  mc Ignorable  quot d quot      x Class  quot MyApp MainWindow quot        Title  quot MainWindow quot   SizeChanged  quot MainWindow SizeChanged quot      Width  quot 1366 quot  Height  quot 768 quot  WindowState  quot Maximized quot  WindowStartupLocation  quot CenterOwner quot  SizeToContent  quot WidthAndHeight quot  gt          lt Canvas x Name  quot myCanvas quot  HorizontalAlignment  quot Left quot  Height  quot 768 quot  VerticalAlignment  quot Top quot  Width  quot 1356 quot  gt           lt Image x Name  quot maxresdefault 1 1  jpg quot  Source  quot maxresdefault-1 1  jpg quot  Stretch  quot Fill quot  Opacity  quot 0 6 quot  Height  quot 767 quot  Canvas Left  quot -6 quot  Width  quot 1366 quot   gt            lt Separator Margin  quot 0 quot  Background  quot  FF302D2D quot  Foreground  quot  FF111010 quot  Height  quot 0 quot  Canvas Left  quot -811 quot  Canvas Top  quot 148 quot  Width  quot 766 quot   gt           lt Separator Margin  quot 0 quot  Background  quot  FF302D2D quot  Foreground  quot  FF111010 quot  HorizontalAlignment  quot Right quot  Width  quot 210 quot  Height  quot 0 quot  Canvas Left  quot 1653 quot  Canvas Top  quot 102 quot   gt           lt Image x Name  quot imgscroll quot  Source  quot BcaKKb47i 1  png quot  Stretch  quot Fill quot  RenderTransformOrigin  quot 0 5 0 5 quot  Height  quot 523 quot  Canvas Left  quot -3 quot  Canvas Top  quot 122 quot  Width  quot 580 quot  gt               lt Image RenderTransform gt                   lt TransformGroup gt                       lt ScaleTransform  gt                       lt SkewTransform  gt                       lt RotateTransform Angle  quot 89 093 quot   gt                       lt TranslateTransform  gt                   lt  TransformGroup gt               lt  Image RenderTransform gt           lt  Image gt    cs  private void MainWindow SizeChanged object sender  SizeChangedEventArgs e                myCanvas Width   e NewSize Width          myCanvas Height   e NewSize Height           double xChange   1  yChange   1           if  e PreviousSize Width    0              xChange    e NewSize Width   e PreviousSize Width            if  e PreviousSize Height    0              yChange    e NewSize Height   e PreviousSize Height            ScaleTransform scale   new ScaleTransform myCanvas LayoutTransform Value M11   xChange  myCanvas LayoutTransform Value M22   yChange           myCanvas LayoutTransform   scale          myCanvas UpdateLayout

[wpf] How to make all controls resize accordingly proportionally when window is maximized?

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