/// <summary>
/// Event handler for the gvImage_RowCommand event
/// </summary>
/// <param name="sender">a sender</param>
/// <param name="e">a e</param>
protected void gvImage_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "removeFavorite")
{
// Retrieve the row index
int index = Convert.ToInt32(e.CommandArgument);
// Retrieve the id of the object bound to row
int id = Convert.ToInt32(gvImage.DataKeys[index].Values["Id"].ToString());
// Create a temp image with same id
TravelImage image = new TravelImage();
image.Id = id;
// Remove from session
FavoritesSessionFacade.Remove(image);
// Display message
if (FavoritesSessionFacade.ImageCount() > 0)
{
lbImageErrorMessage.Text = "";
}
else
{
lbImageErrorMessage.Text = "No favorited images.";
}
// Rebind
gvImage.DataSource = FavoritesSessionFacade.ImageCollection;
gvImage.DataBind();
}
}
/// <summary>
/// Removes a image
/// </summary>
/// <param name="image">a image</param>
/// <returns>true/false value indicating if removed</returns>
public static bool Remove(TravelImage image)
{
bool isRemoved = false;
if (IsFavoritesExist())
{
Favorites temp = RetrieveFavoritesFromSession();
isRemoved = temp.Remove(image);
SendFavoritesToSession(temp);
}
return(isRemoved);
}
/// <summary>
/// Adds a images to favorites
/// </summary>
/// <param name="image">a image</param>
/// <returns>true/false value indicating if added</returns>
public static bool Add(TravelImage image)
{
bool isAdded = false;
Favorites temp = RetrieveFavoritesFromSession();
if (!temp.IsExist(image))
{
temp.Add(image);
SendFavoritesToSession(temp);
isAdded = false;
}
return(isAdded);
}
/// <summary>
/// Helper adds image to favorites
/// </summary>
/// <param name="item"></param>
private void AddImageToFavorites(ListViewItem item)
{
// Retrieve item index
int index = Convert.ToInt32(item.DisplayIndex);
// Initialize object
TravelImage image = new TravelImage();
image.Id = Convert.ToInt32(lvImageData.DataKeys[index].Values["Id"]);;
image.Title = lvImageData.DataKeys[index].Values["Title"].ToString();
image.Path = lvImageData.DataKeys[index].Values["Path"].ToString();
// Save to session (favorites)
FavoritesSessionFacade.Add(image);
}
/// <summary>
/// Event handler for rptImageBox_ItemCommand event
/// </summary>
/// <param name="sender">a sender</param>
/// <param name="e">a e</param>
protected void rptImageBox_ItemCommand(object sender, ListViewCommandEventArgs e)
{
// Retrieve item which raised item command event
ListViewItem item = (ListViewItem)e.Item;
// Retrieve item index
int index = Convert.ToInt32(item.DisplayIndex);
// Initialize object
TravelImage image = new TravelImage();
image.Id = Convert.ToInt32(lvImageBox.DataKeys[index].Values["Id"]);;
image.Title = lvImageBox.DataKeys[index].Values["Title"].ToString();;
image.Path = lvImageBox.DataKeys[index].Values["Path"].ToString();;
// Save to session
FavoritesSessionFacade.Add(image);
// Redirect to favorites page upon adding
Response.Redirect("./Favorites.aspx");
}
/// <summary>
/// Event handler for the gvImage_RowCommand event
/// </summary>
/// <param name="sender">a sender</param>
/// <param name="e">a e</param>
protected void gvImage_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "addFavorite")
{
// Retrieve index of row generating event
int index = Convert.ToInt32(e.CommandArgument);
// Retrieve the id of the object bound to row
int id = Convert.ToInt32(gvImage.DataKeys[index].Values["Id"].ToString());
// Initialize object
TravelImage image = new TravelImage();
image.Id = id;
image.Title = gvImage.DataKeys[index].Values["Title"].ToString();
image.Path = gvImage.DataKeys[index].Values["Path"].ToString();
// Add to session
FavoritesSessionFacade.Add(image);
// Redirect to favorites page
Response.Redirect("./Favorites.aspx");
}
}
/// <summary>
/// Removes a image from internal collection
/// </summary>
/// <param name="image">a image</param>
/// <returns>true/false value</returns>
public bool Remove(TravelImage image)
{
return(_imageCollection.Remove(image));
}
/// <summary>
/// Checks to see if image exists in internal collection
/// </summary>
/// <param name="image">a image</param>
/// <returns>true/false value</returns>
public bool IsExist(TravelImage image)
{
return(_imageCollection.Contains(image));
}
/// <summary>
/// Adds a travel image to internal collection
/// </summary>
/// <param name="image">a image</param>
public void Add(TravelImage image)
{
_imageCollection.Add(image);
}
