Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / LoginStatusDesigner.cs / 1 / LoginStatusDesigner.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.Design.WebControls { using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.ComponentModel.Design; using System.Design; using System.Diagnostics; using System.Globalization; using System.Web.UI.WebControls; ////// /// Designer for the LoginStatus control. Includes verb to switch whether the control renders as "login" or "logout". /// [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)] public class LoginStatusDesigner : CompositeControlDesigner { private bool _loggedIn; private LoginStatus _loginStatus; ///public override DesignerActionListCollection ActionLists { get { DesignerActionListCollection actionLists = new DesignerActionListCollection(); actionLists.AddRange(base.ActionLists); actionLists.Add(new LoginStatusDesignerActionList(this)); return actionLists; } } protected override bool UsePreviewControl { get { return true; } } public override string GetDesignTimeHtml() { IDictionary parameters = new HybridDictionary(2); parameters["LoggedIn"] = _loggedIn; LoginStatus loginStatus = (LoginStatus)ViewControl; ((IControlDesignerAccessor)loginStatus).SetDesignModeState(parameters); bool blank; string originalText; if (_loggedIn) { originalText = loginStatus.LogoutText; // Need to check if original text is empty OR a single space " ", since it is // persisted as a single space in the designer due to a Trident bug blank = (originalText == null || originalText.Length == 0 || originalText == " "); if (blank) { loginStatus.LogoutText = "[" + loginStatus.ID + "]"; } } else { originalText = loginStatus.LoginText; blank = (originalText == null || originalText.Length == 0 || originalText == " "); if (blank) { loginStatus.LoginText = "[" + loginStatus.ID + "]"; } } return base.GetDesignTimeHtml(); } /// public override void Initialize(IComponent component) { VerifyInitializeArgument(component, typeof(LoginStatus)); _loginStatus = (LoginStatus) component; base.Initialize(component); } private class LoginStatusDesignerActionList : DesignerActionList { private LoginStatusDesigner _designer; public LoginStatusDesignerActionList(LoginStatusDesigner designer) :base(designer.Component) { _designer = designer; } public override bool AutoShow { get { return true; } set { } } [TypeConverter(typeof(LoginStatusViewTypeConverter))] public string View { get { if (_designer._loggedIn) { return SR.GetString(SR.LoginStatus_LoggedInView); } else { return SR.GetString(SR.LoginStatus_LoggedOutView); } } set { if (String.Compare(value, SR.GetString(SR.LoginStatus_LoggedInView), StringComparison.Ordinal) == 0) { _designer._loggedIn = true; } else if (String.Compare(value, SR.GetString(SR.LoginStatus_LoggedOutView), StringComparison.Ordinal) == 0) { _designer._loggedIn = false; } else { Debug.Fail("Unexpected view value"); } _designer.UpdateDesignTimeHtml(); } } public override DesignerActionItemCollection GetSortedActionItems() { DesignerActionItemCollection items = new DesignerActionItemCollection(); items.Add(new DesignerActionPropertyItem("View", SR.GetString(SR.WebControls_Views), String.Empty, SR.GetString(SR.WebControls_ViewsDescription))); return items; } private class LoginStatusViewTypeConverter : TypeConverter { public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { string[] names = new string[2]; names[0] = SR.GetString(SR.LoginStatus_LoggedOutView); names[1] = SR.GetString(SR.LoginStatus_LoggedInView); return new StandardValuesCollection(names); } public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return true; } public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return true; } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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