/// <summary>
/// Setup the flushing operation.
/// </summary>
/// <typeparam name="TData">Data type of column.</typeparam>
/// <param name="column">The column.</param>
/// <param name="getValue">The delegate to return data value.</param>
/// <returns>This row input for fluent coding.</returns>
public RowInput <T> WithFlush <TData>(Column <TData> column, Func <T, TData> getValue)
{
if (column == null)
{
throw new ArgumentNullException(nameof(column));
}
VerifyNotSealed();
_target = _target.Union(column);
_flushFuncs.Add((p, v) =>
{
if (getValue == null)
{
return(false);
}
var value = getValue(v);
if (column.AreEqual(p.GetValue(column), value))
{
return(false);
}
p.EditValue(column, value);
return(true);
});
return(this);
}
private static IColumns GetTargetColumns(IColumns result, RowBinding binding)
{
Debug.Assert(binding != null);
var input = binding.RowInput;
if (input != null)
{
return(result.Union(input.Target));
}
var childBindings = binding.ChildBindings;
if (childBindings == null)
{
return(result);
}
for (int i = 0; i < childBindings.Count; i++)
{
result = GetTargetColumns(result, childBindings[i]);
}
return(result);
}
