Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Design / Converters / ValidatedMobileControlConverter.cs / 1305376 / ValidatedMobileControlConverter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.Design.MobileControls.Converters { using System.Diagnostics; using System.Collections; using System.ComponentModel; using System.Web.UI; using System.Web.UI.Design.MobileControls.Adapters; using System.Web.UI.MobileControls; [ System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode) ] [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")] internal class ValidatedMobileControlConverter: StringConverter { private Form GetContainingForm(MobileControl mc) { return FindContainer(mc, typeof(Form)) as Form; } private StyleSheet GetContainingStyleSheet(MobileControl mc) { return FindContainer(mc, typeof(StyleSheet)) as StyleSheet; } private Control FindContainer(MobileControl mc, Type containerType) { for (Control control = mc; control != null; control = control.Parent) { if (containerType.IsAssignableFrom(control.GetType())) { return control; } } return null; } protected virtual Object [] GetValidatableControls(Object instance) { System.Web.UI.MobileControls.BaseValidator thisValidator = null; if (instance is Array) { Array controlList = (Array)instance; Debug.Assert(controlList.Length > 0); thisValidator = (BaseValidator) controlList.GetValue(0); Form firstForm = GetContainingForm(thisValidator); for (int i = 1; i < controlList.Length; i++) { BaseValidator validator = (BaseValidator)controlList.GetValue(i); if (GetContainingForm(validator) != firstForm) { return null; } } } if (instance is System.Web.UI.MobileControls.BaseValidator) { thisValidator = (System.Web.UI.MobileControls.BaseValidator) instance; } else if (instance is ChoicePropertyFilter) { IDeviceSpecificDesigner designer = ((ChoicePropertyFilter)instance).Designer; thisValidator = designer.UnderlyingObject as System.Web.UI.MobileControls.BaseValidator; } if (thisValidator == null) { Debug.Fail("Unsupported object passed in"); return null; } ArrayList controlArray = new ArrayList(); if (GetContainingStyleSheet(thisValidator) != null) { ISite site = thisValidator.Site; IContainer container = null; if (site != null) { container = site.Container; Debug.Assert(container != null); foreach(IComponent component in container.Components) { Control control = component as Control; if (control != null && CanBeValidated(control)) { controlArray.Add(control.ID); } } } } else { Form parentForm = GetContainingForm(thisValidator); if (parentForm != null) { ExtractValidatableControls(parentForm, controlArray); } else { return null; } } controlArray.Sort(); return controlArray.ToArray(); } private void ExtractValidatableControls(Control parent, ArrayList controlArray) { foreach (Control control in parent.Controls) { if (CanBeValidated(control)) { controlArray.Add(control.ID); } if (!(control is Form)) { ExtractValidatableControls(control, controlArray); } } } private bool CanBeValidated(Control control) { // Control must have an ID if (control.ID == null || control.ID.Length == 0) { return false; } // Control must have a ValidationProperty attribute ValidationPropertyAttribute valProp = (ValidationPropertyAttribute) TypeDescriptor.GetAttributes(control)[typeof(ValidationPropertyAttribute)]; if (null != valProp && null != valProp.Name) { return true; } return false; } ////// /// /// A type descriptor that specifies the location of the context to convert from. /// ////// Returns a collection of standard values retrieved from the context specified /// by the specified type descriptor. /// ////// public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { if (context == null || context.Instance == null) { return null; } Object [] objValues = GetValidatableControls(context.Instance); if (objValues != null) { return new StandardValuesCollection(objValues); } else { return null; } } ////// A StandardValuesCollection that represents the standard values collected from /// the specified context. /// ////// /// /// A type descriptor that indicates the context to convert from. /// ////// Gets whether /// or not the context specified contains exclusive standard values. /// ////// public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return false; } ////// ///if the specified context contains exclusive standard /// values, otherwise . /// /// /// /// A type descriptor that indicates the context to convert from. /// ////// Gets whether or not the specified context contains supported standard /// values. /// ////// public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return true; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007./// ///if the specified context conatins supported standard /// values, otherwise . ///
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