C# | Uri.EscapeDataString(String) Method

Last Updated : 01 May, 2019

Uri.EscapeDataString(String) Method is used to convert a string to its escaped representation.

Syntax: public static string EscapeDataString (string stringToEscape);
Here, it takes the string to escape.

Return Value: This method returns a string which contains the escaped representation of stringToEscape.

Exception: This method throws ArgumentNullException if stringToEscape is null.
and UriFormatException if The length of stringToEscape exceeds 32766 characters.

Below programs illustrate the use of Uri.EscapeDataString(String) Method:

Example 1:

// C# program to demonstrate the 
// Uri.EscapeDataString(String) Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        try { 
  
            // Declaring and initializing address1 
            string address1 = "http://www.contoso.com/index.htm#search"; 
  
            // Converting a string to its  
            // escaped representation 
            // using EscapeDataString() method 
            string value = Uri.EscapeDataString(address1); 
  
            // Displaying the result 
            Console.WriteLine("Escaped string is : {0}", value); 
        } 
  
        catch (ArgumentNullException e)  
        { 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
} 

Output:

Escaped string is : https%3A%2F%2F2.zoppoz.workers.dev%3A443%2Fhttp%2Fwww.contoso.com%2Findex.htm%23search

Example 2: For ArgumentNullException

// C# program to demonstrate the 
// Uri.EscapeDataString(String) Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
  
        try { 
  
            // Declaring and initializing address1 
            string address1 = null; 
  
            // Converting a string to its  
            // escaped representation 
            // using EscapeDataString() method 
            string value = Uri.EscapeDataString(address1); 
  
            // Displaying the result 
            Console.WriteLine("Escaped string is : {0}", value); 
        } 
  
        catch (ArgumentNullException e)  
        { 
            Console.WriteLine("stringToEscape can not be null"); 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
  
        catch (UriFormatException e)  
        { 
            Console.WriteLine("Length of stringToEscape should"+ 
                          " not exceed from 32766 characters."); 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
} 

Output:

stringToEscape can not be null
Exception Thrown: System.ArgumentNullException

Example 3: For UriFormatException

// C# program to demonstrate the 
// Uri.EscapeDataString(String) Method 
using System; 
using System.Text; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        try { 
  
            // Declaring and initializing address1 
            StringBuilder address1 = new StringBuilder("http://www.contoso.com/index.htm#search"); 
  
            // appending StringBuilder 
            for (int i = 1; i <= 3000; i++) 
                address1.Append("abcedfghijklmnopdjdjdjdjdjjddjjdjdj"); 
  
            // Converting a string to its  
            // escaped representation 
            // using EscapeDataString() method 
            string value = Uri.EscapeDataString(address1.ToString()); 
  
            // Displaying the result 
            Console.WriteLine("Escaped string is : {0}", value); 
        } 
  
        catch (ArgumentNullException e) 
       { 
            Console.WriteLine("stringToEscape can not be null"); 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
  
        catch (UriFormatException e) 
        { 
            Console.WriteLine("Length of stringToEscape should"+ 
                          " not exceed from 32766 characters."); 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
} 

Output:

Length of stringToEscape should not exceed from 32766 characters.
Exception Thrown: System.UriFormatException

Reference:

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

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