Replace First and Last characters from String in C# and VB.Net

Last Reply 7 months ago By pandeyism

Posted 7 months ago

Can you give an example for replace The left character and right character of string with another character ?

You are viewing reply posted by: pandeyism 7 months ago.
Posted 7 months ago


Please refer below sample.



protected void Page_Load(object sender, EventArgs e)
    string oldchar = "TSPForums.nea";
    string outcome = ReplaceLeft(oldchar);
    string finaloutcom = ReplaceRight(outcome);
    Response.Write("<b>" + oldchar + "</b>" + " After replacing left and right characters <b>" + finaloutcom + "</b>");

public string ReplaceLeft(string oldcharacterLeft)
    string result1 = oldcharacterLeft.Replace(oldcharacterLeft.Substring(0, oldcharacterLeft.Length + 1 - oldcharacterLeft.Length), "A");
    return result1;

public string ReplaceRight(string oldchrRight)
    string result2 = oldchrRight.Replace(oldchrRight.Substring(oldchrRight.Length - 1), "t");
    return result2;


Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim oldchar As String = "TSPForums.nea"
    Dim outcome As String = ReplaceLeft(oldchar)
    Dim finaloutcom As String = ReplaceRight(outcome)
    Response.Write("<b>" & oldchar & "</b>" & " After replacing left and right characters <b>" & finaloutcom & "</b>")
End Sub

Public Function ReplaceLeft(ByVal oldcharacterLeft As String) As String
    Dim result1 As String = oldcharacterLeft.Replace(oldcharacterLeft.Substring(0, oldcharacterLeft.Length + 1 - oldcharacterLeft.Length), "A")
    Return result1
End Function

Public Function ReplaceRight(ByVal oldchrRight As String) As String
    Dim result2 As String = oldchrRight.Replace(oldchrRight.Substring(oldchrRight.Length - 1), "t")
    Return result2
End Function


TSPForums.nea After replacing left and right characters