c# - How to clear contents of a StringBuilder

Clear a StringBuilder contents
The StringBuilder class represents a mutable String of characters. The StringBuilder class cannot be inherited. The StringBuilder class represents a String-like object whose value is a mutable sequence of characters.

The following .net c# tutorial code demonstrates how we can clear the contents of a StringBuilder instance. That means how we will remove/delete all the characters of a StringBuilder object. In this .net c# tutorial code we will use the StringBuilder class Clear() method.

The StringBuilder Clear() method removes all characters from the current StringBuilder instance. This Clear() method returns a StringBuilder object whose length is zero.

So finally, using the StringBuilder class Clear() method the .net c# developers can clear/delete StringBuilder instance contents.

<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html>
<script runat="server"> 
    protected void Button1_Click(object sender, System.EventArgs e)  
        StringBuilder stringb = new StringBuilder();

        stringb.Append("example - how to make StringBuilder empty.");

        Label1.Text = stringb.ToString();
        Label1.Text += "<br />stringbuilder length: " + stringb.Length;

        //this line clear stringbuilder contents. this make capacity lower.
        //stringb.Replace(stringb.ToString(), " ");

        //another way to clear stringbuilder contents.


        Label1.Text += "<br /><br />after clear contents stringbuilder length: " + stringb.Length;
<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>c# example - stringbuilder clear contents</title>  
    <form id="form1" runat="server">  
        <h2 style="color:MidnightBlue; font-style:italic;">  
            c# example - stringbuilder clear contents
        <hr width="550" align="left" color="Gainsboro" />  
        <br />  
        <br /><br />
            Text="stringbuilder clear contents"  
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