MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:syncfusion="clr-namespace:Syncfusion.Maui.DataGrid;assembly=Syncfusion.Maui.DataGrid"
             xmlns:local="clr-namespace:DataGrid_Columns"
             x:Class="DataGrid_Columns.MainPage">
    
    <ContentPage.BindingContext>
        <local:OrderInfoRepo />
    </ContentPage.BindingContext>

    <StackLayout>

        <StackLayout Orientation="Horizontal">
            <Button Text="Add" Clicked="Button_Clicked_1" Margin="3" />
            <Button Text="Edit" Clicked="Button_Clicked_2" Margin="3" />
            <Button Text="Remove" Clicked="Button_Clicked_3" Margin="3" />
            <Button Text="Clear" Clicked="Button_Clicked_4" Margin="3" />
        </StackLayout>

        <syncfusion:SfDataGrid x:Name="dataGrid" ItemsSource="{Binding Orders}"
                               ColumnWidthMode="FitByHeader"
                               AutoGenerateColumnsMode="None" >
            <syncfusion:SfDataGrid.Columns>
                <syncfusion:DataGridNumericColumn MappingName="OrderID" HeaderText="Order ID"/>
                <syncfusion:DataGridTextColumn MappingName="Customer" HeaderText="Customer"/>
                <syncfusion:DataGridCheckBoxColumn MappingName="IsShipped" HeaderText="Is Shipped"/>
                <syncfusion:DataGridDateColumn MappingName="ShipTime" HeaderText="Ship Time"/>
            </syncfusion:SfDataGrid.Columns>
        </syncfusion:SfDataGrid>

    </StackLayout>

</ContentPage>