DataPagerFieldCollection.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / Orcas / RTM / ndp / fx / src / xsp / System / Web / Extensions / ui / webcontrols / DataPagerFieldCollection.cs / 1 / DataPagerFieldCollection.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Collections; 
using System.ComponentModel;
using System.Configuration; 
using System.Web;
using System.Web.Resources;
using System.Web.Security;
using System.Web.UI; 

namespace System.Web.UI.WebControls { 
    ///  
    /// Summary description for DataPagerFieldCollection
    ///  
    [AspNetHostingPermission(System.Security.Permissions.SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(System.Security.Permissions.SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public class DataPagerFieldCollection : StateManagedCollection {
        private DataPager _dataPager; 
        private static readonly Type[] knownTypes = new Type[] {
                                                                typeof(NextPreviousPagerField), 
                                                                typeof(NumericPagerField), 
                                                                typeof(TemplatePagerField)
                                                            }; 

        public event EventHandler FieldsChanged;

        public DataPagerFieldCollection(DataPager dataPager) { 
            _dataPager = dataPager;
        } 
 
        /// 
        /// Gets a  at the specified index in the 
        /// collection.
        /// 
        [
        Browsable(false) 
        ]
        public DataPagerField this[int index] { 
            get { 
                return ((IList)this)[index] as DataPagerField;
            } 
        }


        ///  
        /// Appends a  to the collection.
        ///  
        public void Add(DataPagerField field) { 
            ((IList)this).Add(field);
        } 

        /// 
        /// Provides a deep copy of the collection.  Used mainly by design time dialogs to implement "cancel" rollback behavior.
        ///  
        public DataPagerFieldCollection CloneFields(DataPager pager) {
 
            DataPagerFieldCollection fields = new DataPagerFieldCollection(pager); 
            foreach (DataPagerField field in this) {
                fields.Add(field.CloneField()); 
            }
            return fields;
        }
 

        ///  
        /// Returns whether a DataPagerField is a member of the collection. 
        /// 
        public bool Contains(DataPagerField field) { 
            return ((IList)this).Contains(field);
        }

 
        /// 
        /// Copies the contents of the entire collection into an  appending at 
        /// the specified index of the . 
        /// 
        public void CopyTo(DataPagerField[] array, int index) { 
            ((IList)this).CopyTo(array, index);
            return;
        }
 

        ///  
        /// Creates a known type of DataPagerField. 
        /// 
        protected override object CreateKnownType(int index) { 
            switch (index) {
                case 0:
                    return new NextPreviousPagerField();
                case 1: 
                    return new NumericPagerField();
                case 2: 
                    return new TemplatePagerField(); 
                default:
                    throw new ArgumentOutOfRangeException(AtlasWeb.PagerFieldCollection_InvalidTypeIndex); 
            }
        }

 
        /// 
        /// Returns an ArrayList of known DataPagerField types. 
        ///  
        protected override Type[] GetKnownTypes() {
            return knownTypes; 
        }


        ///  
        /// Returns the index of the first occurrence of a value in a .
        ///  
        public int IndexOf(DataPagerField field) { 
            return ((IList)this).IndexOf(field);
        } 


        /// 
        /// Inserts a  to the collection 
        /// at the specified index.
        ///  
        public void Insert(int index, DataPagerField field) { 
            ((IList)this).Insert(index, field);
        } 


        /// 
        /// Called when the Clear() method is complete. 
        /// 
        protected override void OnClearComplete() { 
            OnFieldsChanged(); 
        }
 
        /// 
        /// 
        void OnFieldChanged(object sender, EventArgs e) {
            OnFieldsChanged(); 
        }
 
        ///  
        /// 
        void OnFieldsChanged() { 
            if (FieldsChanged != null) {
                FieldsChanged(this, EventArgs.Empty);
            }
        } 

 
        ///  
        /// Called when the Insert() method is complete.
        ///  
        protected override void OnInsertComplete(int index, object value) {
            DataPagerField field = value as DataPagerField;
            if (field != null) {
                field.FieldChanged += new EventHandler(OnFieldChanged); 
            }
            field.SetDataPager(_dataPager); 
            OnFieldsChanged(); 
        }
 

        /// 
        /// Called when the Remove() method is complete.
        ///  
        protected override void OnRemoveComplete(int index, object value) {
            DataPagerField field = value as DataPagerField; 
            if (field != null) { 
                field.FieldChanged -= new EventHandler(OnFieldChanged);
            } 
            OnFieldsChanged();
        }

 
        /// 
        /// Validates that an object is a HotSpot. 
        ///  
        protected override void OnValidate(object o) {
            base.OnValidate(o); 
            if (!(o is DataPagerField))
                throw new ArgumentException(AtlasWeb.PagerFieldCollection_InvalidType);
        }
 

        ///  
        /// Removes a  from the collection at the specified 
        /// index.
        ///  
        public void RemoveAt(int index) {
            ((IList)this).RemoveAt(index);
        }
 

        ///  
        /// Removes the specified  from the collection. 
        /// 
        public void Remove(DataPagerField field) { 
            ((IList)this).Remove(field);
        }

 
        /// 
        /// Marks a DataPagerField as dirty so that it will record its entire state into view state. 
        ///  
        protected override void SetDirtyObject(object o) {
            ((DataPagerField)o).SetDirty(); 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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DataPagerFieldCollection.cs source code in C# .NET

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