109 lines
3.8 KiB
C#
109 lines
3.8 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="EntityConnectionStringBuilderItem.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//
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// @owner [....]
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// @backupOwner [....]
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//------------------------------------------------------------------------------
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using System.Data.EntityClient;
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using System.Diagnostics;
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namespace System.Web.UI.Design.WebControls
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{
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internal class EntityConnectionStringBuilderItem : IComparable<EntityConnectionStringBuilderItem>
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{
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// Only one of the following should be set. This is enforced through the constructors and the fact that these fields are readonly.
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private readonly EntityConnectionStringBuilder _connectionStringBuilder;
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private readonly string _unknownConnectionString; // used when the string cannot be loaded into a connection string builder or is missing some required keywords
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internal EntityConnectionStringBuilderItem(EntityConnectionStringBuilder connectionStringBuilder)
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{
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// empty connection string builder is allowed, but not null
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Debug.Assert(connectionStringBuilder != null, "null connectionStringBuilder");
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_connectionStringBuilder = connectionStringBuilder;
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}
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internal EntityConnectionStringBuilderItem(string unknownConnectionString)
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{
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// empty is not allowed -- use the constructor that takes a builder if the string is empty
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Debug.Assert(!String.IsNullOrEmpty(unknownConnectionString), "null or empty unknownConnectionString");
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_unknownConnectionString = unknownConnectionString;
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}
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internal string ConnectionString
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{
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get
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{
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if (_connectionStringBuilder != null)
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{
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return _connectionStringBuilder.ConnectionString;
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}
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else
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{
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return _unknownConnectionString;
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}
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}
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}
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internal EntityConnectionStringBuilder EntityConnectionStringBuilder
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{
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get
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{
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return _connectionStringBuilder;
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}
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}
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internal bool IsEmpty
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{
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get
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{
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return String.IsNullOrEmpty(this.ConnectionString);
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}
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}
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internal bool IsNamedConnection
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{
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get
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{
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if (_connectionStringBuilder != null)
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{
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return !String.IsNullOrEmpty(_connectionStringBuilder.Name);
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}
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else
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{
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// if the connection string is not recognized by a EntityConnectionStringBuilder, it can't be a valid named connection
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return false;
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}
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}
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}
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public override string ToString()
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{
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// Display just the name for named connections, but the full connection string otherwise
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if (_connectionStringBuilder != null)
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{
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if (!String.IsNullOrEmpty(_connectionStringBuilder.Name))
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{
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return _connectionStringBuilder.Name;
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}
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else
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{
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return _connectionStringBuilder.ConnectionString;
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}
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}
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else
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{
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return _unknownConnectionString;
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}
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}
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int IComparable<EntityConnectionStringBuilderItem>.CompareTo(EntityConnectionStringBuilderItem other)
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{
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return (String.Compare(this.ToString(), other.ToString(), StringComparison.OrdinalIgnoreCase));
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}
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}
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}
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