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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