private void ResourceGetsCreated(object sender, EventArgs args)
{
if (_mode == EditingMode.UserEditsExistingResource)
{
_view.ShowMessageToUser("Bitte erst die Änderungen speichern oder verwerfen!");
return;
}
TeachingResource newResource = new TeachingResource("Neue Ressource", "bitte ausfüllen");
_activeResource = newResource;
_allResources.Add(newResource);
if (_mode == EditingMode.EmptyDatabase)
{
_mode = EditingMode.UserEditsFirstNewResource;
}
else
{
_mode = EditingMode.UserEditsNewResource;
_view.UpdateResourceCollectionView(_allResources);
_view.HighlightLatestResource();
}
_view.EnterEditNewMode(newResource);
}
private void TeachingResourcesDGV_RowEnter(object sender, DataGridViewCellEventArgs e)
{
TeachingResource selected = teachingResourcesDGV.Rows[e.RowIndex].Tag as TeachingResource;
TeachingResourceHandler handler = ResourceSelected;
handler?.Invoke(selected);
}
public TeachingResource LoadFirstEntry()
{
if (File.Exists(_fileName))
{
IEnumerable <string> entries = File.ReadLines(_fileName);
return(TeachingResource.BuildFromCsvLine(entries.First()));
}
return(null);
}
public void EnterSelectExistingMode(TeachingResource selectedResource)
{
deleteButton.Enabled = true;
cancelButton.Enabled = false;
updateButton.Enabled = false;
CurrentResource = selectedResource;
titelTextBox.Text = selectedResource.Title;
titelTextBox.Enabled = true;
urlTextBox.Text = selectedResource.Url;
urlTextBox.Enabled = true;
titelTextBox.Select();
}
public void EnterEditNewMode(TeachingResource newResource)
{
createButton.Enabled = false;
deleteButton.Enabled = false;
cancelButton.Enabled = true;
updateButton.Enabled = true;
CurrentResource = newResource;
titelTextBox.Text = newResource.Title;
titelTextBox.Enabled = true;
urlTextBox.Text = newResource.Url;
urlTextBox.Enabled = true;
titelTextBox.Select();
}
public IEnumerable <TeachingResource> LoadAllEntries()
{
List <TeachingResource> allResources = new List <TeachingResource>();
if (File.Exists(_fileName))
{
IEnumerable <string> csvLines = File.ReadLines(_fileName);
foreach (string entry in csvLines)
{
allResources.Add(TeachingResource.BuildFromCsvLine(entry));
}
}
return(allResources);
}
private void ResourceGetsSelected(TeachingResource selectedResource)
{
if (selectedResource == null)
{
return;
}
if (_mode == EditingMode.NothingSelected || _mode == EditingMode.UserSelectedExistingResource)
{
_mode = EditingMode.UserSelectedExistingResource;
_activeResource = selectedResource;
_view.EnterSelectExistingMode(selectedResource);
}
else if (_mode == EditingMode.UserEditsNewResource)
{
// resource gets programmatically selected, but we ignore it while creation!
return;
}
else
{
throw new InvalidOperationException($"UI ist im {_mode} Modus! Darin kann nicht selektiert werden!");
}
}
