FormCollection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / FormCollection.cs / 1 / FormCollection.cs
                        

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

namespace System.Windows.Forms { 
    using System; 
    using System.Collections;
    using System.ComponentModel; 
    using System.Globalization;

    /// 
    ///  
    ///    
    ///       This is a read only collection of Forms exposed as a static property of the 
    ///       Application class. This is used to store all the currently loaded forms in an app. 
    ///    
    ///  
    public class FormCollection : ReadOnlyCollectionBase {

        internal static object CollectionSyncRoot = new object();
 
        /// 
        ///  
        ///     
        ///       Gets a form specified by name, if present, else returns null. If there are multiple
        ///       forms with matching names, the first form found is returned. 
        ///    
        /// 
        public virtual Form this[string name] {
            get { 
                if (name != null) {
                    lock (CollectionSyncRoot) { 
                        foreach(Form form in InnerList) { 
                            if (string.Equals(form.Name, name, StringComparison.OrdinalIgnoreCase)) {
                                return form; 
                            }
                        }
                    }
                } 
                return null;
            } 
        } 

        ///  
        /// 
        ///    
        ///       Gets a form specified by index.
        ///     
        /// 
        public virtual Form this[int index] { 
            get { 
                Form f = null;
 
                lock (CollectionSyncRoot) {
                    f = (Form) InnerList[index];
                }
                return f; 
            }
        } 
 
        /// 
        ///    Used internally to add a Form to the FormCollection 
        /// 
        internal void Add(Form form) {
            lock (CollectionSyncRoot) {
                InnerList.Add(form); 
            }
        } 
 
        /// 
        ///    Used internally to check if a Form is in the FormCollection 
        /// 
        internal bool Contains(Form form)
        {
            bool inCollection = false; 
            lock (CollectionSyncRoot)
            { 
                inCollection = InnerList.Contains(form); 
            }
            return inCollection; 
        }

        /// 
        ///    Used internally to add a Form to the FormCollection 
        /// 
        internal void Remove(Form form) { 
            lock (CollectionSyncRoot) { 
                InnerList.Remove(form);
            } 
        }
    }
}
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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