HandlerBase.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Data / System / Data / Common / HandlerBase.cs / 1 / HandlerBase.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
namespace System.Data.Common {
 
    using System;
    using System.Collections;
    using System.Configuration;
    using System.Diagnostics; 
    using System.Globalization;
    using System.Xml; 
 
    internal static class HandlerBase {
 
        static internal void CheckForChildNodes(XmlNode node) {
            if (node.HasChildNodes) {
                throw ADP.ConfigBaseNoChildNodes(node.FirstChild);
            } 
        }
        static private void CheckForNonElement(XmlNode node) { 
            if (XmlNodeType.Element != node.NodeType) { 
                throw ADP.ConfigBaseElementsOnly(node);
            } 
        }
        static internal void CheckForUnrecognizedAttributes(XmlNode node) {
            if (0 != node.Attributes.Count) {
                throw ADP.ConfigUnrecognizedAttributes(node); 
            }
        } 
 
        // skip whitespace and comments, throws if non-element
        static internal bool IsIgnorableAlsoCheckForNonElement(XmlNode node) { 
            if ((XmlNodeType.Comment == node.NodeType) || (XmlNodeType.Whitespace == node.NodeType)) {
                return true;
            }
            CheckForNonElement(node); 
            return false;
        } 
 
        static internal string RemoveAttribute(XmlNode node, string name, bool required, bool allowEmpty) {
            XmlNode attribute = node.Attributes.RemoveNamedItem(name); 
            if (null == attribute) {
                if (required) {
                    throw ADP.ConfigRequiredAttributeMissing(name, node);
                } 
                return null;
            } 
            string value = attribute.Value; 
            if (!allowEmpty && (0 == value.Length)) {
                throw ADP.ConfigRequiredAttributeEmpty(name, node); 
            }
            return value;
        }
 
        static internal DataSet CloneParent(DataSet parentConfig, bool insenstive) {
            if (null == parentConfig) { 
                parentConfig = new DataSet(DbProviderFactoriesConfigurationHandler.sectionName); 
                parentConfig.CaseSensitive = !insenstive;
                parentConfig.Locale = CultureInfo.InvariantCulture; 
            }
            else {
                parentConfig = parentConfig.Copy();
            } 
            return parentConfig;
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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