C# | Convert.ToUInt32(String, IFormatProvider) Method

Last Updated : 11 Jul, 2025
This method is used to converts the specified string representation of a number to an equivalent 32-bit unsigned integer, using the specified culture-specific formatting information. Syntax: 
public static uint ToUInt32 (string value, IFormatProvider provider);
Parameters:
  • value : It is a string that contains the number to convert.
  • provider : It is an object that supplies culture-specific formatting information.
Return Value: This method returns a 32-bit unsigned integer that is equivalent to the number in value, or 0 (zero) if value is null. Exceptions:
  • FormatException: If the value does not consist of an optional sign followed by a sequence of digits (0 through 9).
  • OverFlowException: If the value represents a number that is less than MinValue or greater than MaxValue.
Below programs illustrate the use of Convert.ToUInt32(String, IFormatProvider) Method: Example 1: csharp 
// C# program to demonstrate the
// Convert.ToUInt32() Method
using System;
using System.Globalization;

class GFG {

// Main Method
public static void Main()
{
    try {

        // creating object of CultureInfo
        CultureInfo cultures = new CultureInfo("en-US");

        // declaring and initializing String array
        string[] values = {"12345", "+12345",
                                "123456789"};

        // calling get() Method
        Console.Write("Converted uint value"
             + " from a specified string ");

        for (int j = 0; j < values.Length; j++) 
        {
            get(values[j], cultures);
        }
    }

    catch (FormatException e)
    {
        Console.WriteLine("\n");
        Console.Write("Exception Thrown: ");
        Console.Write("{0}", e.GetType(), e.Message);
    }

    catch (OverflowException e)
    {
        Console.WriteLine("\n");
        Console.Write("Exception Thrown: ");
        Console.Write("{0}", e.GetType(), e.Message);
    }
}

// Defining get() method
public static void get(string s,
           CultureInfo cultures)
{

    // converting string to specified uint
    uint val = Convert.ToUInt32(s, cultures);

    // display the converted uint value
    Console.Write(" {0}, ", val);
}
}
Output: 
Converted uint value from a specified string  12345,  12345,  123456789,
Example 2: For FormatException csharp 
// C# program to demonstrate the
// Convert.ToUInt32() Method
using System;
using System.Globalization;

class GFG {

// Main Method
public static void Main()
{

    try {

        // creating object of CultureInfo
        CultureInfo cultures = new CultureInfo("en-US");

        // declaring and initializing String array
        string[] values = {"12345", "+12345",
                                "123456789"};

        // calling get() Method
        Console.Write("Converted uint value"
               + " of specified strings: ");

        for (int j = 0; j < values.Length; j++) 
        {
            get(values[j], cultures);
        }

        Console.WriteLine("\n");
        string s = "123 456, 789";

        Console.WriteLine("format of s is invalid ");

        // converting string to specified uint
        uint val = Convert.ToUInt32(s, cultures);

        // display the converted uint value
        Console.Write(" {0}, ", val);
    }

    catch (FormatException e) 
    {
        Console.Write("Exception Thrown: ");
        Console.Write("{0}", e.GetType(), e.Message);
    }

    catch (OverflowException e)
    {
        Console.Write("Exception Thrown: ");
        Console.Write("{0}", e.GetType(), e.Message);
    }
}

// Defining get() method
public static void get(string s,
           CultureInfo cultures)
{

    // converting string to
    // specified uint value
    uint val = Convert.ToUInt32(s, cultures);

    // display the converted
    // uint value
    Console.Write(" {0}, ", val);
}
}
Output: 
Converted uint value of specified strings:  12345,  12345,  123456789, 

format of s is invalid 
Exception Thrown: System.FormatException
Example 3: For OverflowException csharp 
// C# program to demonstrate the
// Convert.ToUInt32() Method
using System;
using System.Globalization;

class GFG {

// Main Method
public static void Main()
{

    try {

        // creating object of CultureInfo
        CultureInfo cultures = new CultureInfo("en-US");

        // declaring and initializing String array
        string[] values = {"12345", "+12345",
                                "123456789"};

        // calling get() Method
        Console.Write("Converted uint value "
                 + "of specified strings: ");

        for (int j = 0; j < values.Length; j++) 
        {
            get(values[j], cultures);
        }

        Console.WriteLine("\n");
        string s = "-7922816251426433759354395033500000";

        Console.WriteLine("s is less than the MinValue");

        // converting string to specified uint
        uint val = Convert.ToUInt32(s, cultures);

        // display the converted uint value
        Console.Write(" {0}, ", val);
    }

    catch (FormatException e) 
    {
        Console.Write("Exception Thrown: ");
        Console.Write("{0}", e.GetType(), e.Message);
    }

    catch (OverflowException e)
    {
        Console.Write("Exception Thrown: ");
        Console.Write("{0}", e.GetType(), e.Message);
    }
}

// Defining get() method
public static void get(string s,
           CultureInfo cultures)
{

    // converting string to
    // specified uint value
    uint val = Convert.ToUInt32(s, cultures);

    // display the converted uint value
    Console.Write(" {0}, ", val);
}
}
Output: 
Converted uint value of specified strings:  12345,  12345,  123456789, 

s is less than the MinValue
Exception Thrown: System.OverflowException
Reference:
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Article Tags:
C#
CSharp-method
CSharp Convert Class

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