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//------------------------------------------------------------------------------
// <copyright file="IStateManager.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
/*
* Interface implemented by objects that support state management.
*
* Copyright (c) 1999 Microsoft Corporation
*/
namespace System.Web.UI {
/// <devdoc>
/// <para>Defines the contract that controls must implement to support state
/// management.</para>
/// </devdoc>
public interface IStateManager {
/*
* Return true if tracking state changes.
*/
/// <devdoc>
/// <para>Determines if state changes are being tracked.</para>
/// </devdoc>
bool IsTrackingViewState {
get;
}
/*
* Load previously saved state.
*/
/// <devdoc>
/// <para>Loads the specified control's previously saved state.</para>
/// </devdoc>
void LoadViewState(object state);
/*
* Return object containing state changes.
*/
/// <devdoc>
/// <para>Returns the object that contains the state changes.</para>
/// </devdoc>
object SaveViewState();
/*
* Start tracking state changes.
*/
/// <devdoc>
/// <para>Instructs the control to start tracking changes in state.</para>
/// </devdoc>
void TrackViewState();
}
}
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