In this blog we will know a character is available in a given string.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication1

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

string s1 = "welcome";

int f1 = s1.IndexOf("a");

if (f1 != -1)

{

MessageBox.Show("Available at Position: " + f1.ToString());

}

else

{

MessageBox.Show("Not Available: ");

}

}

}

}



Thanks for reading