public static string ToRenderString(this KeyedValue kv)
{
if (kv != null)
{
return($"{kv.Key.ToStringOrDefault()} :: {kv.Value}");
}
else
{
return("[null]");
}
}
/// <summary>
/// Removes the exit menu item if it exists.
/// </summary>
public bool RemoveExitMenuItem()
{
var success = false;
if (_exitKeyedMenuItem != null)
{
success = RemoveMenuItem(_exitKeyedMenuItem.Key);
}
_exitKeyedMenuItem = null;
return(success);
}
/// <summary>
/// Adds the exit menu item or replaces it if it already exists.
/// </summary>
public bool SetExitMenuItem(string exitText, string exitKey)
{
// Exclude any existing exit menu item.
RemoveExitMenuItem();
// Attempt to add the new item.
var keyedMenuItem = new KeyedValue <MenuItem>(exitKey, new MenuItem(exitText, () => Task.FromResult(false)));
var success = AddMenuItem(keyedMenuItem, false);
if (success)
{
_exitKeyedMenuItem = keyedMenuItem;
}
return(success);
}
/// <summary>
/// Attempts to add a menu item to the menu.
/// </summary>
private bool AddMenuItem(KeyedValue <MenuItem> keyedMenuItem, bool addToList)
{
try
{
_menuItemsByKey.Add(keyedMenuItem.Key, keyedMenuItem.Value);
if (addToList)
{
_keyedMenuItems.Add(keyedMenuItem);
}
return(true);
}
catch
{
return(false);
}
}
public bool MoveNext()
{
var kdv = this.CurrentValue;
if (kdv == null)
{
if (!this.InternalEnumerator.MoveNext())
{
return(false);
}
kdv = this.InternalEnumerator.Current.Value;
this.Current = new KeyValuePair <string, TValue>(kdv.Key, kdv.Value);
this.CurrentValue = kdv.Next;
return(true);
}
this.Current = new KeyValuePair <string, TValue>(kdv.Key, kdv.Value);
this.CurrentValue = kdv.Next;
return(true);
}
static string getAttribute(KeyedValue keyedValue) => $"{keyedValue.Key}=\"{keyedValue.Text}\"";
public void Reset()
{
this.InternalEnumerator.Reset();
this.Current = default;
this.CurrentValue = null;
}
public DefaultKeyedValueDataset(KeyedValue data)
{
DefaultKeyedValueDataset keyedValueDataset = this;
this.data = data;
}
