C# | Uri.IsWellFormedOriginalString() Method - GeeksforGeeks

30 Apr, 2019
Uri.IsWellFormedOriginalString() Method is used to show whether the string used to construct this Uri was well-formed and is not required to be further escaped.
Syntax: public bool IsWellFormedOriginalString ();
Return Value: This method returns true if the string was well-formed otherwise, false.
Below programs illustrate the use of Uri.IsWellFormedOriginalString() Method:
Example 1:
// C# program to demonstrate the// Uri.IsWellFormedOriginalString()// Methodusing System;using System.Globalization;  class GFG {      // Main Method    public static void Main()    {        // Declaring and initializing address        Uri address1 = new Uri("http://www.contoso.com/index.htm#search");          // Validating if Uri is well formed or not        // using IsWellFormedOriginalString() method        bool value = address1.IsWellFormedOriginalString();          // Displaying the result        if (value)            Console.WriteLine("uri is well formed");        else            Console.WriteLine("uri is not well formed");    }}
uri is well formed

Example 2:
// C# program to demonstrate the// Uri.IsWellFormedOriginalString() // Methodusing System;using System.Globalization;  class GFG {      // Main Method    public static void Main()    {          try {              // calling get() method            get(new Uri("http://www.contoso.com/path"));              // if The string is not correctly escaped.            get(new Uri("http://www.contoso.com/path???/file name"));              // The string is an absolute Uri             // that represents an implicit             // file Uri.            get(new Uri("c:\\directory\filename"));              // The string is an absolute URI that            // is missing a slash before the path.            get(new Uri("file://c:/directory/filename"));              // The parser for the Uri.Scheme indicates             // that the original string was not well-formed.            get(new Uri("xy11.z://www.contoso.com/path/file"));              // The string contains unescaped backslashes            // even if they are treated as forwarding slashes.            get(new Uri("http:\\host/path/file"));               // The string represents a hierarchical             // absolute Uri and does not contain "://".            get(new Uri("www.contoso.com/path/file"));        }          catch (UriFormatException e)         {            Console.Write("uri is so poorly formed that system thrown ");            Console.Write("{0}", e.GetType(), e.Message);            Environment.Exit(1);        }    }      // defining get() method    public static void get(Uri address)    {        // Validating if Uri is well formed or not        // using IsWellFormedOriginalString() method        bool value = address.IsWellFormedOriginalString();          // Displaying the result        if (value)            Console.WriteLine("uri is well formed");        else            Console.WriteLine("uri is poorly formed");    }}
uri is well formed
uri is poorly formed
uri is poorly formed
uri is poorly formed
uri is well formed
uri is so poorly formed that system thrown System.UriFormatException

Reference:
https://docs.microsoft.com/en-us/dotnet/api/system.uri.iswellformedoriginalstring?view=netstandard-2.1
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