Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / xsp / System / Web / UI / WebControls / SessionParameter.cs / 1 / SessionParameter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.ComponentModel; using System.Data; using System.Security.Permissions; ////// Represents a Parameter that gets its value from the application's session state. /// [ DefaultProperty("SessionField"), ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class SessionParameter : Parameter { ////// Creates an instance of the SessionParameter class. /// public SessionParameter() { } ////// Creates an instance of the SessionParameter class with the specified parameter name, and session field. /// public SessionParameter(string name, string sessionField) : base(name) { SessionField = sessionField; } ////// Creates an instance of the SessionParameter class with the specified parameter name, database type, and /// session field. /// public SessionParameter(string name, DbType dbType, string sessionField) : base(name, dbType) { SessionField = sessionField; } ////// Creates an instance of the SessionParameter class with the specified parameter name, type, and session field. /// public SessionParameter(string name, TypeCode type, string sessionField) : base(name, type) { SessionField = sessionField; } ////// Used to clone a parameter. /// protected SessionParameter(SessionParameter original) : base(original) { SessionField = original.SessionField; } ////// The name of the session variable to get the value from. /// [ DefaultValue(""), WebCategory("Parameter"), WebSysDescription(SR.SessionParameter_SessionField), ] public string SessionField { get { object o = ViewState["SessionField"]; if (o == null) return String.Empty; return (string)o; } set { if (SessionField != value) { ViewState["SessionField"] = value; OnParameterChanged(); } } } ////// Creates a new SessionParameter that is a copy of this SessionParameter. /// protected override Parameter Clone() { return new SessionParameter(this); } ////// Returns the updated value of the parameter. /// protected override object Evaluate(HttpContext context, Control control) { if (context == null || context.Session == null) { return null; } return context.Session[SessionField]; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.ComponentModel; using System.Data; using System.Security.Permissions; ////// Represents a Parameter that gets its value from the application's session state. /// [ DefaultProperty("SessionField"), ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class SessionParameter : Parameter { ////// Creates an instance of the SessionParameter class. /// public SessionParameter() { } ////// Creates an instance of the SessionParameter class with the specified parameter name, and session field. /// public SessionParameter(string name, string sessionField) : base(name) { SessionField = sessionField; } ////// Creates an instance of the SessionParameter class with the specified parameter name, database type, and /// session field. /// public SessionParameter(string name, DbType dbType, string sessionField) : base(name, dbType) { SessionField = sessionField; } ////// Creates an instance of the SessionParameter class with the specified parameter name, type, and session field. /// public SessionParameter(string name, TypeCode type, string sessionField) : base(name, type) { SessionField = sessionField; } ////// Used to clone a parameter. /// protected SessionParameter(SessionParameter original) : base(original) { SessionField = original.SessionField; } ////// The name of the session variable to get the value from. /// [ DefaultValue(""), WebCategory("Parameter"), WebSysDescription(SR.SessionParameter_SessionField), ] public string SessionField { get { object o = ViewState["SessionField"]; if (o == null) return String.Empty; return (string)o; } set { if (SessionField != value) { ViewState["SessionField"] = value; OnParameterChanged(); } } } ////// Creates a new SessionParameter that is a copy of this SessionParameter. /// protected override Parameter Clone() { return new SessionParameter(this); } ////// Returns the updated value of the parameter. /// protected override object Evaluate(HttpContext context, Control control) { if (context == null || context.Session == null) { return null; } return context.Session[SessionField]; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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