protected void SearchAlbumsBTN_Click(object sender, EventArgs e)
{
if (ArtistList.SelectedIndex == 0)
{
//index 0 physiclaly points to the prompt line
// "select an artist";
//using MessageUserControl for your own message..
MessageUserControl.ShowInfo("Search Concern", "select an artist");
ArtistAlbumList.DataSource = null;
ArtistAlbumList.DataBind();
}
else
{
//normally when leaving web page to class library you will want try-catch error handling
//use MessageUserControll to handle errors
// MessageUserControll has try-catch embedded inside its logic
MessageUserControl.TryRun(() => {
//bind to grid
AlbumController sysmgr = new AlbumController(); //new instance
//make a controller request to list object to use fot populating the Gridview
List <ChinookSystem.ViewModels.ArtistAlbums> info = sysmgr.Albums_GetAlbumsForArtist(int.Parse(ArtistList.SelectedValue)); //fully qualify name to avoid descrepancies
//bind list object to grid
ArtistAlbumList.DataSource = info;
ArtistAlbumList.DataBind();
}, "success message title", "success message goes here");
}
}
protected void SearchAlbums_Click(object sender, EventArgs e)
{
if (ArtistList.SelectedIndex == 0)
{
//index 0 is physically pointing to prompt line
// "Select an artist for the search";
//Using MessageUserControl for your own message
//first version
MessageUserControl.ShowInfo("Search Concern", "Select an artist");
//second version
ArtistAlbumList.DataSource = null;
ArtistAlbumList.DataBind();
}
else
{
//user friendly error handling
//normally when you leave web page to class library you want to have error handling
//use MessageUserControl to handle errors which has try/catch EMBEDDED in its logic
MessageUserControl.TryRun(() =>
{
//standard lookup and assignment
AlbumController sysmgr = new AlbumController();
List <ChinookSystem.ViewModels.ArtistAlbums> info = sysmgr.Albums_GetAlbumsForArtist(int.Parse(ArtistList.SelectedValue));
ArtistAlbumList.DataSource = info;
ArtistAlbumList.DataBind();
}, "Success Message title", "Your success message here");
}
}
protected void SearchAlbums_Click(object sender, EventArgs e)
{
if (ArtistList.SelectedIndex == 0)
{
//index 0 is physically pointing to the prompt line
//Message.Text = "Select an artist for the search";
//using MessageUserControl for your own message
MessageUserControl.ShowInfo("Search concern", "Select an artist for the search");
ArtistAlbumList.DataSource = null;
ArtistAlbumList.DataBind();
}
else
{
//user friendly error handling
//normally when you leave the web page to your class library, you will want to have error handling (aka try/catch)
//use MessageUserControl to handle errors
//MessageUserControl has try/catch embedded inside its logic
MessageUserControl.TryRun(() => {
//standard lookup and assignment
AlbumController sysmgr = new AlbumController();
List <ChinookSystem.ViewModels.ArtistAlbums> info = sysmgr.Albums_GetAlbumsForArtist(int.Parse(ArtistList.SelectedValue));
ArtistAlbumList.DataSource = info;
ArtistAlbumList.DataBind();
}, "Success Message title", "your success message goes here");
}
}
protected void SearchAlbums_Click(object sender, EventArgs e)
{
if (ArtistList.SelectedIndex == 0)
{
MessageLabel.Text = "Please select an artist!!!";
ArtistAlbumList.DataSource = null;
ArtistAlbumList.DataBind();
}
else
{
MessageLabel.Text = "";
//show the gridview
AlbumController sysmgr = new AlbumController();
List <ChinookSystem.ViewModels.ArtistAlbums> info = sysmgr.Albums_GetAlbumsForArtist(int.Parse(ArtistList.SelectedValue));
ArtistAlbumList.DataSource = info;
ArtistAlbumList.DataBind();
}
}
protected void SearchAlbums_Click(object sender, EventArgs e)
{
if (ArtistList.SelectedIndex == 0)
{
MessageUserControl.ShowInfo("Must select an artist.");
ArtistAlbum_Grid.DataSource = null;
ArtistAlbum_Grid.DataBind();
}
else
{
MessageUserControl.TryRun(() =>
{
AlbumController sysmgr = new AlbumController();
List <ChinookSystem.ViewModels.ArtistAlbums> info = sysmgr.Albums_GetAlbumsForArtist(int.Parse(ArtistList.SelectedValue));
ArtistAlbum_Grid.DataSource = info;
ArtistAlbum_Grid.DataBind();
}, "Success title", "Success message");
}
}
protected void SearchAlbums_Click(object sender, EventArgs e)
{
if (ArtistList.SelectedIndex == 0)
{
//index 0 is physically pointing to the prompt line
Message.Text = "Select an artist for the search.";
ArtistAlbumList.DataSource = null;
ArtistAlbumList.DataBind();
}
else
{
//standard lookup and assignment
AlbumController sysmgr = new AlbumController();
List <ChinookSystem.ViewModels.ArtistAlbums> info = sysmgr.Albums_GetAlbumsForArtist(
int.Parse(ArtistList.SelectedValue));
ArtistAlbumList.DataSource = info;
ArtistAlbumList.DataBind();
}
}
protected void SearchAlbums_Click(object sender, EventArgs e)
{
if (ArtistList.SelectedIndex == 0)
{
//Am I on the first physical line (prompt line) of the DDL
MessageUserControl.ShowInfo("Search Selection Concern", "Select an artist for the search.");
ArtistAlbumList.DataSource = null;
ArtistAlbumList.DataBind();
}
else
{
MessageUserControl.TryRun(() => {
AlbumController sysmgr = new AlbumController();
List <ChinookSystem.ViewModels.ArtistAlbums> info = sysmgr.Albums_GetAlbumsForArtist(
int.Parse(ArtistList.SelectedValue));
ArtistAlbumList.DataSource = info;
ArtistAlbumList.DataBind();
}, "Search Results", "The list of albums for the selected artist");
}
}
