protected void PlayList_Buttons_Command(Object sender, System.Web.UI.WebControls.CommandEventArgs e)
{
var userNameIsValid = UserNameCheck();
if (userNameIsValid == false)
{
MessageUserControl.ShowInfo("", "ERROR: (PlayList_Buttons) User Name is NOT VALID");
}
else
{
switch (e.CommandName)
{
case ("Existing"):
//how do we do error handling using MessageUserControl if the
// code executing is NOT part of an ODS
//you could use Try/Catch (BUT WE WON'T)
//if you examine the source code of MessageUserControl, you will
// find embedded within the code the Try/Catch
//the syntax:
// MessageUserControl.TryRun( () => {coding block});
// MessageUserControl.TryRun( () => {coding block},"success title","successmessage");
MessageUserControl.TryRun(() => {
PlayListController sysmgr = new PlayListController();
List <UserPlayListTrack> info = sysmgr.ListExistingPlayList
(ExistingPlayListDDL.SelectedValue);
MyPlayList.DataSource = info;
MyPlayList.DataBind();
}, "", "SUCCESS: PlayList Retrieved");
break;
case ("New"):
if (string.IsNullOrEmpty(NewPlayListName.Text))
{
MessageUserControl.ShowInfo("", "ERROR: Give a new PlayList name.");
}
else
{
MessageUserControl.TryRun(() => {
PlayListController sysmgr = new PlayListController();
int id = sysmgr.AddNewPLaylist(NewPlayListName.Text, TextBoxUserName.Text);
ExistingPlayListDDL.DataBind();
ExistingPlayListDDL.SelectedValue = id.ToString();
MyPlayList.DataSource = null;
MyPlayList.DataBind();
}, "", "SUCCESS: New PlayList Added");
}
break;
case ("Save"):
var playListItems = GetPlayListItemsFromGridView();
MessageUserControl.TryRun(() => {
PlayListController sysmgr = new PlayListController();
sysmgr.SavePlayList(ExistingPlayListDDL.SelectedValue.ToInt(), playListItems);
}, "", "SUCCESS: PlayList Saved");
break;
}
}
}
protected void PlaylistDropDown_SelectedIndexChanged(object sender, EventArgs e)
{
//how do we do error handling using MessageUserControl if the
// code executing is NOT part of an ODS
//you could use Try/Catch (BUT WE WON'T)
//if you examine the source code of MessageUserControl, you will
// find embedded within the code the Try/Catch
//the syntax:
// MessageUserControl.TryRun( () => {coding block});
// MessageUserControl.TryRun( () => {coding block},"success title","successmessage");
MessageUserControl.TryRun(() => {
PlayListController sysmgr = new PlayListController();
List <UserPlayListTrack> info = sysmgr.ListExistingPlayList
(ExistingPlayListDDL.SelectedValue);
MyPlayList.DataSource = info;
MyPlayList.DataBind();
ButtonSavePlayList.Text = "Save (Playlist # " + ExistingPlayListDDL.SelectedValue + ")";
}, "", "SUCCESS: PlayList Retrieved");
NewPlayListName.Visible = false;
}