Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / DynamicData / DynamicData / QueryStringHandler.cs / 1305376 / QueryStringHandler.cs
using System.Collections.Generic; using System.Collections.Specialized; using System.Globalization; using System.Text; using System.Web.Resources; namespace System.Web.DynamicData { internal static class QueryStringHandler { public static string AddFiltersToPath(string virtualPath, IDictionaryfilters) { if (String.IsNullOrEmpty(virtualPath)) throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, DynamicDataResources.QueryStringHandler_VirtualPathCannotBeEmpty), "virtualPath"); if (filters == null) throw new ArgumentNullException("filters"); string queryString = ConcatenateQueryStringElements(filters); if (String.IsNullOrEmpty(queryString)) return virtualPath; StringBuilder result = new StringBuilder(virtualPath); if (!virtualPath.Contains("?")) { result.Append('?'); } else { if (!virtualPath.EndsWith("?", StringComparison.Ordinal) && !virtualPath.EndsWith("&", StringComparison.Ordinal)) { result.Append('&'); } } result.Append(queryString); return result.ToString(); } private static string ConcatenateQueryStringElements(IDictionary parameters) { if (parameters.Count == 0) { return String.Empty; } StringBuilder result = new StringBuilder(); bool firstParam = true; foreach (String s in parameters.Keys) { if (!String.IsNullOrEmpty(s)) { string key = SanitizeParameterComponent(s); string value = SanitizeParameterComponent(parameters[s]); if (firstParam) firstParam = false; else result.Append('&'); result.Append(key); result.Append('='); result.Append(value); } } return result.ToString(); } private static string SanitizeParameterComponent(object value) { if (value == null) return String.Empty; string strValue = value.ToString(); // Trim trailing spaces, as they are typically meaningless, and make the url look ugly strValue = strValue.TrimEnd(); return Uri.EscapeDataString(strValue); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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