需要使用C#将图像(Varbinary MAX)从SQL Server2014检索到Xamarin

using System;
using System.Data.SqlClient;
using System.Drawing;
using System.IO;
using Xamarin.Forms;

namespace ImageRetrievalApp
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
        }

        protected override void OnAppearing()
        {
            base.OnAppearing();

            // Connect to SQL Server
            using (SqlConnection connection = new SqlConnection("YourConnectionString"))
            {
                connection.Open();

                // Construct SQL query
                string query = "SELECT ImageData FROM Images WHERE ImageId = @ImageId";
                SqlCommand command = new SqlCommand(query, connection);
                command.Parameters.AddWithValue("@ImageId", 1);

                // Execute query and retrieve image data
                byte[] imageData = (byte[])command.ExecuteScalar();

                // Convert byte array to image
                ImageSource imageSource = ImageSource.FromStream(() => new MemoryStream(imageData));

                // Display image in Xamarin app
                Image image = new Image
                {
                    Source = imageSource
                };

                Content = new StackLayout
                {
                    Children = { image }
                };
            }
        }
    }
}