Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebControls / DataBoundControlHelper.cs / 1305376 / DataBoundControlHelper.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Data; using System.Security.Permissions; using System.Web.Util; ////// Helper class for DataBoundControls and v1 data controls. /// This is also used by ControlParameter to find its associated /// control. /// internal static class DataBoundControlHelper { ////// Walks up the stack of NamingContainers starting at 'control' to find a control with the ID 'controlID'. /// public static Control FindControl(Control control, string controlID) { Debug.Assert(control != null, "control should not be null"); Debug.Assert(!String.IsNullOrEmpty(controlID), "controlID should not be empty"); Control currentContainer = control; Control foundControl = null; if (control == control.Page) { // If we get to the Page itself while we're walking up the // hierarchy, just return whatever item we find (if anything) // since we can't walk any higher. return control.FindControl(controlID); } while (foundControl == null && currentContainer != control.Page) { currentContainer = currentContainer.NamingContainer; if (currentContainer == null) { throw new HttpException(SR.GetString(SR.DataBoundControlHelper_NoNamingContainer, control.GetType().Name, control.ID)); } foundControl = currentContainer.FindControl(controlID); } return foundControl; } ///// return true if the two string arrays have the same members /// public static bool CompareStringArrays(string[] stringA, string[] stringB) { if (stringA == null && stringB == null) { return true; } if (stringA == null || stringB == null) { return false; } if (stringA.Length != stringB.Length) { return false; } for (int i = 0; i < stringA.Length; i++) { if (!String.Equals(stringA[i], stringB[i], StringComparison.Ordinal)) { return false; } } return true; } // Returns true for types that can be automatically databound in controls such as // GridView and DetailsView. Bindable types are simple types, such as primitives, strings, // and nullable primitives. public static bool IsBindableType(Type type) { if (type == null) { return false; } Type underlyingType = Nullable.GetUnderlyingType(type); if (underlyingType != null) { // If the type is Nullable then it has an underlying type, in which case // we want to check the underlying type for bindability. type = underlyingType; } return (type.IsPrimitive || (type == typeof(string)) || (type == typeof(DateTime)) || (type == typeof(Decimal)) || (type == typeof(Guid)) || // support for new SqlServer 2008 types: (type == typeof(DateTimeOffset)) || (type == typeof(TimeSpan))); } internal static void ExtractValuesFromBindableControls(IOrderedDictionary dictionary, Control container) { IBindableControl bindableControl = container as IBindableControl; if (bindableControl != null) { bindableControl.ExtractValues(dictionary); } foreach (Control childControl in container.Controls) { ExtractValuesFromBindableControls(dictionary, childControl); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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