public EditForum(Forum ForumToEdit)
{
TempForum = ForumToEdit;
InitializeComponent();
ForumTextBox.Focus();
ForumTextBox.Text = ForumToEdit.ForumName;
}
public AddForum( Forum ForumToAdd)
{
TempForum = ForumToAdd;
InitializeComponent();
ForumTextBox.Focus();
}
//edit
private void EditForumButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (ForumsDataGrid.SelectedIndex == -1)
throw new Exception("Select any forum.");
int selForumID = (ForumsDataGrid.SelectedValue as Forum).ForumID;
Forum ForumToEdit = new Forum();
ForumToEdit.ForumName = (ForumsDataGrid.SelectedValue as Forum).ForumName;
EditForum editForum = new EditForum(ForumToEdit);
editForum.ShowDialog();
if (ForumToEdit.ForumName == null || ForumToEdit.ForumName == "")
throw new Exception("You should write smth!");
(from q in forumEntities.Forum
where q.ForumID == selForumID
select q).First().ForumName = ForumToEdit.ForumName;
forumEntities.SaveChanges();
FillShowForumTab();
}
catch (Exception excpt)
{
MessageBox.Show(excpt.Message);
}
}
//add
private void AddForumButton_Click(object sender, RoutedEventArgs e)
{
try
{
ForumsDataGrid.ItemsSource = null;
this.IsEnabled = false;
Forum ForumToAdd = new Forum();
AddForum addForum = new AddForum(ForumToAdd);
addForum.ShowDialog();
if (ForumToAdd.ForumName == null)
throw new Exception("none");
if (ForumToAdd.ForumName == "")
throw new Exception("Write forum's name!");
ForumToAdd.CreateDate = DateTime.Now;
ForumToAdd.TopicsCount = 0;
ForumToAdd.LastPostID = null;
ForumToAdd.UserId = UserLogined.UserId;
//check for uniq
var f = from q in forumEntities.Forum
where q.ForumName == ForumToAdd.ForumName
select q;
if (f.Count() != 0)
throw new Exception("Such forum already exists!");
forumEntities.Forum.AddObject(ForumToAdd);
forumEntities.SaveChanges();
}
catch (Exception excpt)
{
if(excpt.Message != "none")
MessageBox.Show(excpt.Message);
}
finally
{
FillShowForumTab();
this.IsEnabled = true;
}
}
//del
private void ForumsDataGrid_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Delete)
{
ForumExt ForumExtToDel = (ForumsDataGrid.SelectedValue as ForumExt);
Forum ForumToDel = new Forum();
ForumToDel.CreateDate = ForumExtToDel.CreateDate;
ForumToDel.ForumID = ForumExtToDel.ForumID;
ForumToDel.ForumName = ForumExtToDel.ForumName;
ForumToDel.LastPostID = ForumExtToDel.LastPostID;
ForumToDel.TopicsCount = ForumExtToDel.TopicsCount;
ForumToDel.UserId = ForumExtToDel.UserId;
DB.DelTopicsBelongToForum(ForumToDel.ForumID);
var forumdel = from q in forumEntities.Forum
where q.ForumID == ForumToDel.ForumID
select q;
forumEntities.DeleteObject(forumdel.First());
}
}
/// <summary>
/// Deprecated Method for adding a new object to the Forum EntitySet. Consider using the .Add method of the associated ObjectSet<T> property instead.
/// </summary>
public void AddToForum(Forum forum)
{
base.AddObject("Forum", forum);
}
/// <summary>
/// Create a new Forum object.
/// </summary>
/// <param name="forumID">Initial value of the ForumID property.</param>
/// <param name="topicsCount">Initial value of the TopicsCount property.</param>
/// <param name="forumName">Initial value of the ForumName property.</param>
/// <param name="createDate">Initial value of the CreateDate property.</param>
/// <param name="userId">Initial value of the UserId property.</param>
public static Forum CreateForum(global::System.Int32 forumID, global::System.Int32 topicsCount, global::System.String forumName, global::System.DateTime createDate, global::System.Guid userId)
{
Forum forum = new Forum();
forum.ForumID = forumID;
forum.TopicsCount = topicsCount;
forum.ForumName = forumName;
forum.CreateDate = createDate;
forum.UserId = userId;
return forum;
}