void Add_Click(object sender, RoutedEventArgs e)
{
var sel = SelectedCat;
long?parentId = null;
if (sel != null)
{
var kindOfAdd = MessageBox.Show("Create a sub-item of the selected category? (If No, it will be created at the root level.)", "Add Category", MessageBoxButton.YesNoCancel, MessageBoxImage.Question);
if (kindOfAdd == MessageBoxResult.Yes)
{
parentId = sel.RowId;
}
else if (kindOfAdd != MessageBoxResult.No)
{
return; //canceled
}
}
string s = StringDialog.GetInput("New category name", "", 40);
if (s == null)
{
return;
}
Globals.UI.ModifyCat(0, cat =>
{
cat.ParentId = parentId;
cat.Name = s;
});
DataContext = new VM();
}
/// <summary>
/// Get input; return null on cancel
/// </summary>
public static string GetInput(string caption, string initialValue, int maxLength)
{
var dialog = new StringDialog
{
Owner = App.Current.MainWindow
};
dialog.eCaption.Text = caption;
dialog.eValue.MaxLength = maxLength;
dialog.eValue.Text = initialValue;
if (dialog.ShowDialog() != true)
{
return(null);
}
return(dialog.eValue.Text);
}
void AddCat_Click(object sender, RoutedEventArgs e)
{
var prevSelectedCatIds = _VM.GetEditedSelectedIds();
//get whether root or child
long?parentId = null;
var sel = SelectedItem;
if (sel != null)
{
var answer = MessageBox.Show($"Add as sub-category of {sel.Name}? (If No, it will be created at the root level.)", "New Category", MessageBoxButton.YesNoCancel, MessageBoxImage.Question);
if (answer == MessageBoxResult.Yes)
{
parentId = sel.RowId;
}
else if (answer != MessageBoxResult.No)
{
return;
}
}
//get name
var name = StringDialog.GetInput("Category name", "", 40);
if (name == null)
{
return;
}
name = name.Trim();
if (name.Length == 0)
{
return;
}
//save
Globals.UI.ModifyCat(0, c =>
{
c.Name = name;
c.ParentId = parentId;
});
//reload
_VM = new VM(prevSelectedCatIds);
DataContext = _VM;
}
void Rename_Click(object sender, RoutedEventArgs e)
{
var sel = SelectedCat;
if (sel == null)
{
return;
}
string s = StringDialog.GetInput("New name", sel.Name, 40);
if (s == null)
{
return;
}
Globals.UI.ModifyCat(sel.RowId, cat =>
{
cat.Name = s;
});
DataContext = new VM();
}