OleDbPermission.cs source code in C# .NET

                        Code:
                         / Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / Data / System / Data / OleDb / OleDbPermission.cs / 1 / OleDbPermission.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
namespace System.Data.OleDb {
 
    using System.Collections;
    using System.Collections.Generic;
    using System.Data.Common;
    using System.Globalization; 
    using System.Runtime.Serialization;
    using System.Security; 
    using System.Security.Permissions; 

    [Serializable] 
#if WINFSInternalOnly
    internal
#else
    public 
#endif
    sealed class OleDbPermission :  DBDataPermission { 
 
        private String[] _providerRestriction; // should never be string[0]
        private String _providers; 

        [ Obsolete("OleDbPermission() has been deprecated.  Use the OleDbPermission(PermissionState.None) constructor.  http://go.microsoft.com/fwlink/?linkid=14202", true) ] // MDAC 86034
        public OleDbPermission() : this(PermissionState.None) {
        } 

        public OleDbPermission(PermissionState state) : base(state) { 
        } 

        [ Obsolete("OleDbPermission(PermissionState state, Boolean allowBlankPassword) has been deprecated.  Use the OleDbPermission(PermissionState.None) constructor.  http://go.microsoft.com/fwlink/?linkid=14202", true) ] // MDAC 86034 
        public OleDbPermission(PermissionState state, bool allowBlankPassword) : this(state) {
            AllowBlankPassword = allowBlankPassword;
        }
 
        private OleDbPermission(OleDbPermission permission) : base(permission) { // for Copy
        } 
 
        internal OleDbPermission(OleDbPermissionAttribute permissionAttribute) : base(permissionAttribute) { // for CreatePermission
        } 

        internal OleDbPermission(OleDbConnectionString constr) : base(constr) { // for Open
            if ((null == constr) || constr.IsEmpty) {
                base.Add(ADP.StrEmpty, ADP.StrEmpty, KeyRestrictionBehavior.AllowOnly); 
            }
        } 
 
        [System.ComponentModel.Browsable(false)]
        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)] 
        [Obsolete("Provider property has been deprecated.  Use the Add method.  http://go.microsoft.com/fwlink/?linkid=14202")]
        public string Provider {
            get {
                string providers = _providers; // MDAC 83103 
                if (null == providers) {
                    string[] restrictions = _providerRestriction; 
                    if (null != restrictions) { 
                        if (0 < restrictions.Length) {
                            providers = restrictions[0]; 
                            for (int i = 1; i < restrictions.Length; ++i) {
                                providers += ";" + restrictions[i];
                            }
                        } 
                    }
                } 
                return ((null != providers) ? providers : ADP.StrEmpty); 
            }
            set { // MDAC 61263 
                string[] restrictions = null;
                if (!ADP.IsEmpty(value)) {
                    restrictions = value.Split(new char[1] { ';' });
                    restrictions = DBConnectionString.RemoveDuplicates(restrictions); 
                }
                _providerRestriction = restrictions; 
                _providers = value; 
            }
        } 

        override public IPermission Copy () {
            return new OleDbPermission(this);
        } 
    }
 
    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly, AllowMultiple = true, Inherited = false )] 
    [Serializable]
#if WINFSInternalOnly 
    internal
#else
    public
#endif 
    sealed class OleDbPermissionAttribute : DBDataPermissionAttribute {
 
        private String _providers; 

        public OleDbPermissionAttribute(SecurityAction action) : base(action) { 
        }

        [System.ComponentModel.Browsable(false)]
        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)] 
        [Obsolete("Provider property has been deprecated.  Use the Add method.  http://go.microsoft.com/fwlink/?linkid=14202")]
        public String Provider { 
            get { 
                string providers = _providers;
                return ((null != providers) ? providers : ADP.StrEmpty); 
            }
            set {
                _providers = value;
            } 
        }
 
        override public IPermission CreatePermission() { 
            return new OleDbPermission(this);
        } 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------ 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
namespace System.Data.OleDb {
 
    using System.Collections;
    using System.Collections.Generic;
    using System.Data.Common;
    using System.Globalization; 
    using System.Runtime.Serialization;
    using System.Security; 
    using System.Security.Permissions; 

    [Serializable] 
#if WINFSInternalOnly
    internal
#else
    public 
#endif
    sealed class OleDbPermission :  DBDataPermission { 
 
        private String[] _providerRestriction; // should never be string[0]
        private String _providers; 

        [ Obsolete("OleDbPermission() has been deprecated.  Use the OleDbPermission(PermissionState.None) constructor.  http://go.microsoft.com/fwlink/?linkid=14202", true) ] // MDAC 86034
        public OleDbPermission() : this(PermissionState.None) {
        } 

        public OleDbPermission(PermissionState state) : base(state) { 
        } 

        [ Obsolete("OleDbPermission(PermissionState state, Boolean allowBlankPassword) has been deprecated.  Use the OleDbPermission(PermissionState.None) constructor.  http://go.microsoft.com/fwlink/?linkid=14202", true) ] // MDAC 86034 
        public OleDbPermission(PermissionState state, bool allowBlankPassword) : this(state) {
            AllowBlankPassword = allowBlankPassword;
        }
 
        private OleDbPermission(OleDbPermission permission) : base(permission) { // for Copy
        } 
 
        internal OleDbPermission(OleDbPermissionAttribute permissionAttribute) : base(permissionAttribute) { // for CreatePermission
        } 

        internal OleDbPermission(OleDbConnectionString constr) : base(constr) { // for Open
            if ((null == constr) || constr.IsEmpty) {
                base.Add(ADP.StrEmpty, ADP.StrEmpty, KeyRestrictionBehavior.AllowOnly); 
            }
        } 
 
        [System.ComponentModel.Browsable(false)]
        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)] 
        [Obsolete("Provider property has been deprecated.  Use the Add method.  http://go.microsoft.com/fwlink/?linkid=14202")]
        public string Provider {
            get {
                string providers = _providers; // MDAC 83103 
                if (null == providers) {
                    string[] restrictions = _providerRestriction; 
                    if (null != restrictions) { 
                        if (0 < restrictions.Length) {
                            providers = restrictions[0]; 
                            for (int i = 1; i < restrictions.Length; ++i) {
                                providers += ";" + restrictions[i];
                            }
                        } 
                    }
                } 
                return ((null != providers) ? providers : ADP.StrEmpty); 
            }
            set { // MDAC 61263 
                string[] restrictions = null;
                if (!ADP.IsEmpty(value)) {
                    restrictions = value.Split(new char[1] { ';' });
                    restrictions = DBConnectionString.RemoveDuplicates(restrictions); 
                }
                _providerRestriction = restrictions; 
                _providers = value; 
            }
        } 

        override public IPermission Copy () {
            return new OleDbPermission(this);
        } 
    }
 
    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly, AllowMultiple = true, Inherited = false )] 
    [Serializable]
#if WINFSInternalOnly 
    internal
#else
    public
#endif 
    sealed class OleDbPermissionAttribute : DBDataPermissionAttribute {
 
        private String _providers; 

        public OleDbPermissionAttribute(SecurityAction action) : base(action) { 
        }

        [System.ComponentModel.Browsable(false)]
        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)] 
        [Obsolete("Provider property has been deprecated.  Use the Add method.  http://go.microsoft.com/fwlink/?linkid=14202")]
        public String Provider { 
            get { 
                string providers = _providers;
                return ((null != providers) ? providers : ADP.StrEmpty); 
            }
            set {
                _providers = value;
            } 
        }
 
        override public IPermission CreatePermission() { 
            return new OleDbPermission(this);
        } 
    }
}

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