protected void loadLinkButton_Click(object sender, EventArgs e)
{
var photoId = int.Parse(loadPhotoIdTextBox.Text);
var photoDescription = PhotoData.SelectPhotoDescription(photoId);
photoImage.ImageUrl = string.Format("/PhotoHandler.ashx?photoId={0}", photoId);
photoDescriptionLabel.Text = photoDescription;
}
protected void saveLinkButton_Click(object sender, EventArgs e)
{
if (!photoFileUpload.HasFile)
{
return;
}
var photoId = int.Parse(savePhotoIdTextBox.Text);
var desc = descriptionTextBox.Text;
var httpStream = photoFileUpload.FileContent;
PhotoData.InsertPhoto(photoId, desc, httpStream);
}
public void ProcessRequest(HttpContext context)
{
if (!int.TryParse(context.Request.QueryString["photoId"], out int photoId))
{
return;
}
byte[] bytes = PhotoData.SelectPhotoImage(photoId);
context.Response.ContentType = MediaTypeNames.Image.Jpeg;
context.Response.BufferOutput = false;
context.Response.AddHeader("content-length", bytes.Length.ToString()); // not necessary, but nice to let the client know
using (MemoryStream ms = new MemoryStream(bytes))
{
ms.CopyTo(context.Response.OutputStream);
}
}