352 lines
10 KiB
C#
352 lines
10 KiB
C#
//
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// System.Web.UI.WebControls.PagerSettings.cs
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//
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// Authors:
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// Lluis Sanchez Gual (lluis@novell.com)
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//
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// (C) 2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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using System.ComponentModel;
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using System.Security.Permissions;
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namespace System.Web.UI.WebControls
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{
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[TypeConverterAttribute (typeof(ExpandableObjectConverter))]
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[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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public sealed class PagerSettings: IStateManager
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{
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static readonly object propertyChangedEvent = new object ();
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StateBag ViewState = new StateBag ();
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Control ctrl;
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EventHandlerList events = new EventHandlerList ();
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[Browsable (false)]
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public event EventHandler PropertyChanged {
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add { events.AddHandler (propertyChangedEvent, value); }
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remove { events.RemoveHandler (propertyChangedEvent, value); }
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}
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public PagerSettings ()
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{
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}
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internal PagerSettings (Control ctrl)
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{
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this.ctrl = ctrl;
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}
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[WebCategoryAttribute ("Appearance")]
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[NotifyParentPropertyAttribute (true)]
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[UrlPropertyAttribute]
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[DefaultValueAttribute ("")]
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[EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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public string FirstPageImageUrl {
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get {
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object ob = ViewState ["FirstPageImageUrl"];
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if (ob != null) return (string) ob;
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return string.Empty;
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}
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set {
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ViewState ["FirstPageImageUrl"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Appearance")]
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[DefaultValueAttribute ("<<")]
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[NotifyParentPropertyAttribute (true)]
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public string FirstPageText {
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get {
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object ob = ViewState ["FirstPageText"];
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if (ob != null) return (string) ob;
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return "<<";
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}
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set {
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ViewState ["FirstPageText"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Appearance")]
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[NotifyParentPropertyAttribute (true)]
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[UrlPropertyAttribute]
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[DefaultValueAttribute ("")]
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[EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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public string LastPageImageUrl {
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get {
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object ob = ViewState ["LastPageImageUrl"];
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if (ob != null) return (string) ob;
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return string.Empty;
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}
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set {
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ViewState ["LastPageImageUrl"] = value;
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RaisePropertyChanged ();
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}
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}
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[NotifyParentPropertyAttribute (true)]
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[WebCategoryAttribute ("Appearance")]
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[DefaultValueAttribute (">>")]
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public string LastPageText {
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get {
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object ob = ViewState ["LastPageText"];
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if (ob != null) return (string) ob;
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return ">>";
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}
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set {
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ViewState ["LastPageText"] = value;
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RaisePropertyChanged ();
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}
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}
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[NotifyParentPropertyAttribute (true)]
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[WebCategoryAttribute ("Appearance")]
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[DefaultValueAttribute (PagerButtons.Numeric)]
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public PagerButtons Mode {
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get {
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object ob = ViewState ["Mode"];
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if (ob != null) return (PagerButtons) ob;
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return PagerButtons.Numeric;
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}
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set {
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ViewState ["Mode"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Appearance")]
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[NotifyParentPropertyAttribute (true)]
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[UrlPropertyAttribute]
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[DefaultValueAttribute ("")]
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[EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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public string NextPageImageUrl {
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get {
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object ob = ViewState ["NextPageImageUrl"];
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if (ob != null) return (string) ob;
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return string.Empty;
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}
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set {
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ViewState ["NextPageImageUrl"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Appearance")]
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[NotifyParentPropertyAttribute (true)]
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[DefaultValueAttribute (">")]
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public string NextPageText {
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get {
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object ob = ViewState ["NextPageText"];
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if (ob != null) return (string) ob;
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return ">";
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}
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set {
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ViewState ["NextPageText"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Behavior")]
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[NotifyParentPropertyAttribute (true)]
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[DefaultValueAttribute (10)]
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public int PageButtonCount {
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get {
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object ob = ViewState ["PageButtonCount"];
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if (ob != null) return (int) ob;
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return 10;
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}
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set {
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ViewState ["PageButtonCount"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Layout")]
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[DefaultValueAttribute (PagerPosition.Bottom)]
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[NotifyParentPropertyAttribute (true)]
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public PagerPosition Position {
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get {
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object ob = ViewState ["Position"];
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if (ob != null) return (PagerPosition) ob;
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return PagerPosition.Bottom;
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}
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set {
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ViewState ["Position"] = value;
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}
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}
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[WebCategoryAttribute ("Appearance")]
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[NotifyParentPropertyAttribute (true)]
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[UrlPropertyAttribute]
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[DefaultValueAttribute ("")]
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[EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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public string PreviousPageImageUrl {
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get {
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object ob = ViewState ["PreviousPageImageUrl"];
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if (ob != null) return (string) ob;
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return string.Empty;
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}
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set {
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ViewState ["PreviousPageImageUrl"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Appearance")]
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[DefaultValueAttribute ("<")]
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[NotifyParentPropertyAttribute (true)]
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public string PreviousPageText {
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get {
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object ob = ViewState ["PreviousPageText"];
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if (ob != null) return (string) ob;
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return "<";
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}
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set {
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ViewState ["PreviousPageText"] = value;
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RaisePropertyChanged ();
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}
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}
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[WebCategoryAttribute ("Appearance")]
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[DefaultValueAttribute (true)]
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[NotifyParentPropertyAttribute (true)]
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public bool Visible {
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get {
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object ob = ViewState ["Visible"];
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if (ob != null) return (bool) ob;
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return true;
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}
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set {
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ViewState ["Visible"] = value;
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}
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}
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void RaisePropertyChanged ()
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{
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EventHandler eh = events [propertyChangedEvent] as EventHandler;
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if (eh != null)
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eh (this, EventArgs.Empty);
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}
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public override string ToString ()
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{
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return string.Empty;
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}
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void IStateManager.LoadViewState (object savedState)
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{
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ViewState.LoadViewState (savedState);
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}
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object IStateManager.SaveViewState ()
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{
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return ViewState.SaveViewState();
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}
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void IStateManager.TrackViewState ()
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{
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ViewState.TrackViewState();
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}
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bool IStateManager.IsTrackingViewState
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{
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get { return ViewState.IsTrackingViewState; }
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}
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internal Table CreatePagerControl (int currentPage, int pageCount)
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{
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Table table = new Table ();
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TableRow row = new TableRow ();
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table.Rows.Add (row);
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int buttonCount = (Mode == PagerButtons.Numeric || Mode == PagerButtons.NumericFirstLast) ? PageButtonCount : 1;
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int first = buttonCount * (currentPage / buttonCount);
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int last = first + buttonCount;
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if (last > pageCount) {
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last = pageCount;
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if (last - first < buttonCount)
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first = last - buttonCount;
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if (first < 0)
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first = 0;
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}
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// First button
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if (Mode == PagerButtons.NumericFirstLast || Mode == PagerButtons.NextPreviousFirstLast) {
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if (first > 0)
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row.Cells.Add (CreateCell (FirstPageText, FirstPageImageUrl, "Page", "First"));
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}
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// Prev button
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if (Mode == PagerButtons.NextPrevious || Mode == PagerButtons.NextPreviousFirstLast) {
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if (first > 0)
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row.Cells.Add (CreateCell (PreviousPageText, PreviousPageImageUrl, "Page", "Prev"));
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}
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// Numbers
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if (Mode == PagerButtons.Numeric || Mode == PagerButtons.NumericFirstLast) {
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if (first > 0)
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row.Cells.Add (CreateCell ("...", string.Empty, "Page", first.ToString ()));
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for (int n = first; n < last; n++)
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row.Cells.Add (CreateCell ((n + 1).ToString (), string.Empty, (n != currentPage) ? "Page" : "", (n != currentPage) ? (n + 1).ToString () : ""));
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if (last < pageCount)
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row.Cells.Add (CreateCell ("...", string.Empty, "Page", (last + 1).ToString ()));
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}
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// Next button
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if (Mode == PagerButtons.NextPrevious || Mode == PagerButtons.NextPreviousFirstLast) {
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if (last < pageCount)
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row.Cells.Add (CreateCell (NextPageText, NextPageImageUrl, "Page", "Next"));
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}
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// Last button
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if (Mode == PagerButtons.NumericFirstLast || Mode == PagerButtons.NextPreviousFirstLast) {
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if (last < pageCount)
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row.Cells.Add (CreateCell (LastPageText, LastPageImageUrl, "Page", "Last"));
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}
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return table;
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}
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TableCell CreateCell (string text, string image, string command, string argument) {
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TableCell cell = new TableCell ();
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Control button;
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if (String.IsNullOrEmpty (command)) {
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Label l = new Label ();
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l.Text = text;
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button = l;
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}
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else
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button = (Control)DataControlButton.CreateButton (String.IsNullOrEmpty (image) ? ButtonType.Link : ButtonType.Image, ctrl, text, image, command, argument, true);
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cell.Controls.Add (button);
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return cell;
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}
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}
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}
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