Public/Remove-WPFDataGridtem.ps1

function Remove-WPFDataGridItem
{
<#
    .SYNOPSIS
        This function remove a row to a DataGrid
     
    .DESCRIPTION
        This function remove a row to a DataGrid
     
    .PARAMETER DataGridView
        Specifies the DataGridView Control to use
     
    .PARAMETER SelectedItems
        Specifies that the selectedItems will be removed
     
    .EXAMPLE
        Remove-WFDataGridItem -DataGrid $datagrid1 -selectedItems
     
        Remove all selected items
     
    .NOTES
        Francois-Xavier Cat
        www.lazywinadmin.com
        @lazywinadm
        github.com/lazywinadmin
#>

    
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true)]
        [ValidateNotNull()]
        [System.Windows.Controls.DataGrid]$DataGrid,
        
        [switch]$SelectedItems
    )
    
    BEGIN
    {
        Add-Type –assemblyName PresentationFramework
        Add-Type –assemblyName PresentationCore
        Add-Type –assemblyName WindowsBase
    }
    PROCESS
    {
        IF($PSBoundParameters['SelectedItems'])
        {
            while ($dataGrid.SelectedItems.count -gt 0)
            {
                $dataGrid.ItemsSource.Table.Rows.RemoveAt($dataGrid.SelectedIndex)
            }
        }
    }
}