//------------------------------------------------------------------------------
// <copyright file="DataControlButton.cs" company="Microsoft">
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>                                                                
//------------------------------------------------------------------------------

namespace System.Web.UI.WebControls {

    using System;
    using System.Drawing;
    using System.Web.Util;


    /// <devdoc>
    ///  Derived version of Button used within a DataControl.
    /// </devdoc>
    [SupportsEventValidation]
    internal sealed class DataControlButton : Button {
        
        IPostBackContainer _container;

        internal DataControlButton(IPostBackContainer container) {
            _container = container;
        }

        public override bool CausesValidation {
            get {
                return false;
            }
            set {
                throw new NotSupportedException(SR.GetString(SR.CannotSetValidationOnDataControlButtons));
            }
        }
        
        public override bool UseSubmitBehavior {
            get {
                return false;
            }
            set {
                throw new NotSupportedException();
            }
        }
        
        protected sealed override PostBackOptions GetPostBackOptions() {
            PostBackOptions options;

            if (_container != null) {
                options = _container.GetPostBackOptions(this);
                
                if (Page != null) {
                    options.ClientSubmit = true;
                }
            }
            else {
                options = base.GetPostBackOptions();
            }

            return options;
        }
    }
}