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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
namespace System.Windows.Forms;
/// <summary>
/// Determines when changes to a data-bound control property get propagated
/// back to the corresponding data source property.
/// </summary>
public enum DataSourceUpdateMode
{
/// <summary>
/// Data source is updated when the control property is validated, ie.
/// during the Validating event. Typically this does not occur until the
/// input focus leaves the control. After validation, the value in the
/// control property will also be re-formatted.
/// This is the default update mode.
/// </summary>
OnValidation = 0,
/// <summary>
/// Data source is updated whenever the control property changes (and also
/// updated again during validation). After validation, the value in the
/// control property will also be re-formatted.
/// </summary>
OnPropertyChanged = 1,
/// <summary>
/// Data source is never updated. Binding is "read-only" with respect to
/// the data source. Values entered into the control are *not* parsed,
/// validated or re-formatted. To force the data source to be updated,
/// use the Binding.WriteValue method.
/// </summary>
Never = 2,
}
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