/// <summary>
/// Initializes a new instance of the <see cref="RowDefinitionCollection"/> class.
/// </summary>
/// <param name="grid">The <see cref="Grid"/> that owns the collection.</param>
internal RowDefinitionCollection(Grid grid)
{
Contract.Require(grid, nameof(grid));
this.grid = grid;
this.implicitRow = new RowDefinition() { Grid = grid, Height = new GridLength(1, GridUnitType.Star) };
this.implicitStorage.Add(implicitRow);
}
/// <summary>
/// Gets a value indicating whether the collection contains the specified row.
/// </summary>
/// <param name="definition">The row to evaluate.</param>
/// <returns><c>true</c> if the collection contains the specified row; otherwise, <c>false</c>.</returns>
public Boolean Contains(RowDefinition definition)
{
Contract.Require(definition, "definition");
if (storage.Count == 0)
{
return definition == implicitRow;
}
return storage.Contains(definition);
}
/// <summary>
/// Adds a row to the collection.
/// </summary>
/// <param name="definition">The row definition to add to the collection.</param>
public void Add(RowDefinition definition)
{
Contract.Require(definition, "definition");
if (definition.Grid != null)
definition.Grid.RowDefinitions.Remove(definition);
definition.Grid = grid;
storage.Add(definition);
OnModified();
}
/// <summary>
/// Removes a row from the collection.
/// </summary>
/// <param name="definition">The row to remove from the collection.</param>
/// <returns><c>true</c> if the specified row was removed from the collection; otherwise, <c>false</c>.</returns>
public Boolean Remove(RowDefinition definition)
{
Contract.Require(definition, "definition");
if (storage.Remove(definition))
{
definition.Grid = null;
OnModified();
return true;
}
return false;
}
