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//------------------------------------------------------------------------------
// <copyright file="DataControlPagerLinkButton.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 LinkButton used within a DataControl.
/// </devdoc>
[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));
}
}
/// <devdoc>
/// 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.
/// </devdoc>
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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