DataControlPagerLinkButton.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebControls / DataControlPagerLinkButton.cs / 1 / DataControlPagerLinkButton.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI.WebControls { 
 
    using System;
    using System.Drawing; 
    using System.Web.Util;


    ///  
    ///  Derived version of LinkButton used within a DataControl.
    ///  
    [SupportsEventValidation] 
    internal class DataControlPagerLinkButton : DataControlLinkButton {
 
        internal DataControlPagerLinkButton(IPostBackContainer container) : base(container) {
        }

        public override bool CausesValidation { 
            get {
                return false; 
            } 
            set {
                throw new NotSupportedException(SR.GetString(SR.CannotSetValidationOnPagerButtons)); 
            }
        }

        ///  
        ///  In HTML hyperlinks always use the browser's link color.
        ///  For the DataControl, we want all LinkButtons to honor the ForeColor setting. 
        ///  This requires looking up into the control hierarchy to see if either the cell 
        ///  or the containing row or table define a ForeColor.
        ///  
        protected override void SetForeColor() {
            if (ControlStyle.IsSet(System.Web.UI.WebControls.Style.PROP_FORECOLOR) == false) {
                Color hyperLinkForeColor;
                Control control = this; 

                for (int i = 0; i < 6; i++) { 
                    control = control.Parent; 

                    // pager buttons are usually inside a table that's inside the pager row 
                    Debug.Assert(((i == 0) && (control is TableCell)) ||
                                 ((i == 1) && (control is TableRow)) ||
                                 ((i == 2) && (control is Table)) ||
                                 ((i == 3) && (control is TableCell)) || 
                                 ((i == 4) && (control is TableRow)) ||
                                 ((i == 5) && (control is Table))); 
                    hyperLinkForeColor = ((WebControl)control).ForeColor; 
                    if (hyperLinkForeColor != Color.Empty) {
                        ForeColor = hyperLinkForeColor; 
                        break;
                    }
                }
            } 
        }
    } 
}

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