EntityConnectionStringBuilderItem.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWebControlsDesign / System / Data / WebControls / Design / EntityConnectionStringBuilderItem.cs / 1305376 / EntityConnectionStringBuilderItem.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//----------------------------------------------------------------------------- 

using System.Data.EntityClient; 
using System.Diagnostics;

namespace System.Web.UI.Design.WebControls
{ 
    internal class EntityConnectionStringBuilderItem : IComparable
    { 
        // Only one of the following should be set. This is enforced through the constructors and the fact that these fields are readonly. 
        private readonly EntityConnectionStringBuilder _connectionStringBuilder;
        private readonly string _unknownConnectionString; // used when the string cannot be loaded into a connection string builder or is missing some required keywords 

        internal EntityConnectionStringBuilderItem(EntityConnectionStringBuilder connectionStringBuilder)
        {
            // empty connection string builder is allowed, but not null 
            Debug.Assert(connectionStringBuilder != null, "null connectionStringBuilder");
 
            _connectionStringBuilder = connectionStringBuilder; 
        }
 
        internal EntityConnectionStringBuilderItem(string unknownConnectionString)
        {
            // empty is not allowed -- use the constructor that takes a builder if the string is empty
            Debug.Assert(!String.IsNullOrEmpty(unknownConnectionString), "null or empty unknownConnectionString"); 
            _unknownConnectionString = unknownConnectionString;
        } 
 
        internal string ConnectionString
        { 
            get
            {
                if (_connectionStringBuilder != null)
                { 
                    return _connectionStringBuilder.ConnectionString;
                } 
                else 
                {
                    return _unknownConnectionString; 
                }
            }
        }
 
        internal EntityConnectionStringBuilder EntityConnectionStringBuilder
        { 
            get 
            {
                return _connectionStringBuilder; 
            }
        }

        internal bool IsEmpty 
        {
            get 
            { 
                return String.IsNullOrEmpty(this.ConnectionString);
            } 
        }

        internal bool IsNamedConnection
        { 
            get
            { 
                if (_connectionStringBuilder != null) 
                {
                    return !String.IsNullOrEmpty(_connectionStringBuilder.Name); 
                }
                else
                {
                    // if the connection string is not recognized by a EntityConnectionStringBuilder, it can't be a valid named connection 
                    return false;
                } 
            } 
        }
 
        public override string ToString()
        {
            // Display just the name for named connections, but the full connection string otherwise
            if (_connectionStringBuilder != null) 
            {
                if (!String.IsNullOrEmpty(_connectionStringBuilder.Name)) 
                { 
                    return _connectionStringBuilder.Name;
                } 
                else
                {
                    return _connectionStringBuilder.ConnectionString;
                } 
            }
            else 
            { 
                return _unknownConnectionString;
            } 
        }

        int IComparable.CompareTo(EntityConnectionStringBuilderItem other)
        { 
            return (String.Compare(this.ToString(), other.ToString(), StringComparison.OrdinalIgnoreCase));
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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