/// <summary>
/// Searches for a next block "deep"
/// (includes children of following blocks recursively)
/// </summary>
/// <returns></returns>
public Block FindNextFocusableBlock()
{
Block current = this.Next;
while (current != null)
{
Block foundFocusableBlock = current.FindFirstFocusableBlock();
if (foundFocusableBlock != null)
{
return(foundFocusableBlock);
}
current = current.Next;
}
return(null);
}
protected override void Children_KeyDown(Block block, System.Windows.Forms.KeyEventArgs e)
{
Block nextFocusable = null;
if (e.KeyCode == System.Windows.Forms.Keys.Home)
{
nextFocusable = this.FindFirstFocusableBlock();
if (nextFocusable != null)
{
nextFocusable.SetCursorToTheBeginning();
e.Handled = true;
}
}
else if (e.KeyCode == System.Windows.Forms.Keys.End)
{
nextFocusable = this.FindLastFocusableChild();
if (nextFocusable != null)
{
nextFocusable.SetCursorToTheEnd();
e.Handled = true;
}
}
else if (e.KeyCode == System.Windows.Forms.Keys.Return)
{
Block next = this.Next;
if (next != null)
{
nextFocusable = next.FindFirstFocusableBlock();
if (nextFocusable == null)
{
nextFocusable = nextFocusable.FindNextFocusableBlock();
}
if (nextFocusable != null)
{
nextFocusable.SetFocus();
e.Handled = true;
}
}
}
if (!e.Handled)
{
base.Children_KeyDown(block, e);
}
}
/// <summary>
/// Searches for a next block "deep"
/// (includes children of following blocks recursively)
/// </summary>
/// <returns></returns>
public Block FindNextFocusableBlockInChain()
{
Block current = this.Next;
while (current != null)
{
Block foundFocusableBlock = current.FindFirstFocusableBlock();
if (foundFocusableBlock != null && foundFocusableBlock.CanGetFocus)
{
return(foundFocusableBlock);
}
current = current.Next;
}
if (this.Parent != null)
{
return(this.Parent.FindNextFocusableBlockInChain());
}
return(null);
}