3. Root Window

< 1 min read

Every WPF window starts with a root element.

Usually, this is the Window.

Example:

<Window>

</Window>

This represents the application’s main window.

Everything visible on the screen must be placed inside this root element.

A Typical Window #

<Window
    x:Class="Demo.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Demo"
    Width="600"
    Height="400">

    <Grid>

    </Grid>

</Window>

Here:

Window is the root element.
Grid is the content.
Controls go inside the Grid.

Window Properties #

The root window has many useful properties.

Title #

Sets the window title.

Title="Inventory System"

Width #

Sets the width.

Width="800"

Height #

Sets the height.

Height="600"

ResizeMode #

Controls whether users can resize the window.

ResizeMode="NoResize"

Options include:

CanResize
NoResize
CanMinimize

WindowStartupLocation #

Determines where the window appears.

WindowStartupLocation="CenterScreen"

Background #

Sets the background color.

Background="LightGray"

Icon #

Specifies the window icon.

Icon="Images/logo.ico"

Updated on July 22, 2026