Function to display content of WooCommerce orders dashboard widget.

functions.php

<?php

/**
 * Create the function to output the contents of our Dashboard Widget.
 */

function wc_orders_dashboard_widget_function() {	

	$args 	= array( 
			'post_type' 		=> 'shop_order',
			'post_status' 		=> 'All',
			'posts_per_page' 	=> 5 
		  );

    $orders = get_posts( $args );

	if( count( $orders ) > 0 ) {
		?>		
		<table width="100%" class="vao_orders_table">
			<tr>
				<th><?php _e( 'Order Id', 'woocommerce' ); ?></th>
				<th><?php _e( 'Order Status', 'woocommerce' ); ?></th>
				<th><?php _e( 'Action', 'woocommerce' ); ?></th>
			</tr>
		<?php		
		foreach ( $orders as $key => $value ) {
			
			?>
			<tr>
				<td>
				<?php
				
				$order   =   new WC_Order( $value->ID );

				// 1. Get the order ID and its link
				if ( $order ) {				

	                echo '<a href="' . admin_url( 'post.php?post=' . $order->get_order_number() . '">Order #' . $order->get_order_number() . '</a>';

	            ?>
	            </td>	            
	            <td>	            
	            
	            <?php
	            	// 2. Get status of the order
	                echo esc_html( wc_get_order_status_name( $order->get_status() ) );
	            }
	            ?>
	        	</td>	        	
	        	<td>
				
				<?php

				// 3. Adding action buttons for each order

				do_action( 'woocommerce_admin_order_actions_start', $order );

				$actions = array();

				if ( $order->has_status( array( 'pending', 'on-hold' ) ) ) {
					$actions['processing'] = array(
						'url'       => wp_nonce_url( admin_url( 'admin-ajax.php?action=woocommerce_mark_order_status&status=processing&order_id=' . $value->ID ), 'woocommerce-mark-order-status' ),
						'name'      => __( 'Processing', 'woocommerce' ),
						'action'    => "processing",

					);
				}

				if ( $order->has_status( array( 'pending', 'on-hold', 'processing' ) ) ) {
					$actions['complete'] = array(
						'url'       => wp_nonce_url( admin_url( 'admin-ajax.php?action=woocommerce_mark_order_status&status=completed&order_id=' . $value->ID ), 'woocommerce-mark-order-status' ),
						'name'      => __( 'Complete', 'woocommerce' ),
						'action'    => "complete",
					);
				}

				$actions['view'] = array(
					'url'       => admin_url( 'post.php?post=' . $value->ID . '&action=edit' ),
					'name'      => __( 'View', 'woocommerce' ),
					'action'    => "view",
				);

				$actions = apply_filters( 'woocommerce_admin_order_actions', $actions, $order );

				foreach ( $actions as $action ) {
					printf( '<a class="button tips %s" href="%s" data-tip="%s">%s</a> ', esc_attr( $action['action'] ), esc_url( $action['url'] ), esc_attr( $action['name'] ), esc_attr( $action['name'] ) );
				}

				do_action( 'woocommerce_admin_order_actions_end', $order );
				
				?>
				</td>
			</tr>
			<?php			
		}

		?></table><?php
		
		// 4. Adding All orders link which will redirect to Orders page of WooCommerce
		printf( '<div id="vao_orders"><span class="dashicons dashicons-cart"></span> <a href="%s">' . __( 'View all orders' ) . '</a></div>', admin_url( 'edit.php?post_type=shop_order' ) );		
	}else{
		// If no orders then display No Orders message
		echo __( 'No Orders.' );
	}
}