/// <summary>Initializes a new <see cref="T:System.Net.WebRequest" /> instance for the specified URI scheme.</summary> /// <returns>A <see cref="T:System.Net.WebRequest" /> descendant for the specified URI scheme.</returns> /// <param name="requestUri">A <see cref="T:System.Uri" /> containing the URI of the requested resource. </param> /// <exception cref="T:System.NotSupportedException">The request scheme specified in <paramref name="requestUri" /> is not registered. </exception> /// <exception cref="T:System.ArgumentNullException"> /// <paramref name="requestUri" /> is null. </exception> /// <exception cref="T:System.Security.SecurityException">The caller does not have permission to connect to the requested URI or a URI that the request is redirected to. </exception> /// <PermissionSet> /// <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" /> /// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" /> /// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" /> /// </PermissionSet> public static WebRequest CreateDefault(System.Uri requestUri) { if (requestUri == null) { throw new ArgumentNullException("requestUri"); } return(WebRequest.GetCreator(requestUri.Scheme).Create(requestUri)); }