SortedList represents a collection of key-and-value pairs that are sorted by the keys and are accessible by key and by index.

SortedList sl = new SortedList();
//creating sorted list.
private void btnAdd_Click(object sender, EventArgs e)
if (txtValue.Text != "" && txtKey.Text != "")
        sl.Add(txtKey.Text, txtValue.Text);
//adding key and value to sorted list.
            txtKey.Text = "";
            txtValue.Text = "";
            MessageBox.Show("Text Box Empty");
private void btnDisplay_Click(object sender, EventArgs e)
ICollection ic = sl.Keys;
//assigning sortedlist key to ICollection variable.
foreach (string str in ic)
MessageBox.Show(str + ": " + sl[str]);
//executing loop for each key avaliable    
Screen Shot

  Modified On Nov-30-2017 12:39:46 AM

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