PsUi

1.0.0

private/styles/Set-DataGridStyle.ps1

                                function Set-DataGridStyle {

    <#

    .SYNOPSIS

        Applies theme-aware styling to a DataGrid control.

    #>

    [CmdletBinding()]

    param(

        [Parameter(Mandatory)]

        [System.Windows.Controls.DataGrid]$Grid,

        [ValidateSet('Single', 'Extended')]

        [string]$SelectionMode = 'Extended'

    )

    # Try to apply the Modern XAML style

    $styleApplied = $false

    try {

        if ($null -ne [System.Windows.Application]::Current) {

            $style = [System.Windows.Application]::Current.TryFindResource('ModernDataGridStyle')

            if ($null -ne $style) {

                $Grid.Style = $style

                $styleApplied = $true

            }

        }

    }

    catch {

        Write-Verbose "Failed to apply ModernDataGridStyle from resources: $_"

    }

    # Always apply non-style configuration

    $Grid.GridLinesVisibility = [System.Windows.Controls.DataGridGridLinesVisibility]::Horizontal

    $Grid.HeadersVisibility = [System.Windows.Controls.DataGridHeadersVisibility]::Column

    $Grid.RowHeaderWidth = 0

    $Grid.AutoGenerateColumns = $false

    $Grid.CanUserAddRows = $false

    $Grid.CanUserResizeRows = $false

    $Grid.CanUserResizeColumns = $true

    $Grid.CanUserSortColumns = $true

    $Grid.CanUserReorderColumns = $true

    $Grid.SelectionMode = [System.Windows.Controls.DataGridSelectionMode]::$SelectionMode

    $Grid.SelectionUnit = [System.Windows.Controls.DataGridSelectionUnit]::FullRow

    $Grid.FontFamily = [System.Windows.Media.FontFamily]::new('Segoe UI')

    $Grid.FontSize = 12

    $Grid.Margin = [System.Windows.Thickness]::new(0)

    $Grid.AlternationCount = 2

    $Grid.BorderThickness = [System.Windows.Thickness]::new(1)

    # Row virtualization - without this, large datasets murder the UI

    $Grid.EnableRowVirtualization = $true

    $Grid.EnableColumnVirtualization = $true

    [System.Windows.Controls.VirtualizingPanel]::SetIsVirtualizing($Grid, $true)

    [System.Windows.Controls.VirtualizingPanel]::SetVirtualizationMode($Grid, [System.Windows.Controls.VirtualizationMode]::Recycling)

    [System.Windows.Controls.VirtualizingPanel]::SetScrollUnit($Grid, [System.Windows.Controls.ScrollUnit]::Pixel)

}