here is the question C# cengage mindtap

reate a program named Auctionthat allows a user to enter an amount bid on an online auction item. Include three overloaded methods that accept an int, double, or string bid. Each method should display the bid and indicate whether it is over the minimum acceptable bid of $10.

If the bid is greater than or equal to $10, display Bid accepted.

If the bid is less than $10, display Bid not high enough.

If the bid is a string, accept it only if one of the following is true:

• It is numeric and preceded with a dollar sign.
• It is numeric and followed by the word dollars.

Otherwise, display a message that says Bid was not in correct format.

here's my code it says I'm wrong

using System;

//solution class for the program

class Solution {

// Method overloading below

public static void Auction(int val){ //method with int parameter

//check conditions for bid

if (val >= 10){

Console.WriteLine("Bid accepted.");

}

else{

Console.WriteLine("Bid not high enough.");

}

}

public static void Auction(double val){ //method with double parameter

//check conditions for bid

if (val >= 10.00){

Console.WriteLine("Bid accepted.");

}

else{

Console.WriteLine("Bid not high enough.");

}

}

public static void Auction(string val){ //method with string parameter

//check for numeric value in string

bool isNumber1=isNumeric(val.Substring(1));

bool isNumber2=isNumeric(val.Substring(0,val.Length-1));

//check conditions for bid

if ((val.StartsWith("$") && isNumber1) || (val.EndsWith("$") && isNumber2)){

Console.WriteLine("Bid accepted.");

}

else{

Console.WriteLine("Bid was not in correct format.");

}

}

//function to check if string in numeric

public static bool isNumeric(string str){

//check each character of string

foreach (char ch in str){

if ( !Char.IsNumber(ch) ){

return false;

}

}

return true;

}

//main method implementation for testing purpose

public static void Main() {

//create all possible values of Bid

int bid1=12, bid2=9;

double bid3=17.5, bid4=9.99;

string bid5="$15", bid6="15$", bid7="bid15";

//make all the function calls for testing purpose

Auction(bid1);

Auction(bid2);

Auction(bid3);

Auction(bid4);

Auction(bid5);

Auction(bid6);

Auction(bid7);

}

}