c# - How to append another StringBuilder to a StringBuilder

Append another StringBuilder to a StringBuilder
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 append another StringBuilder to a StringBuilder instance. That means how we can add another specified StringBuilder object at the end of a StringBuilder instance. In this .net c# tutorial code we will append another StringBuilder object to a StringBuilder instance using the StringBuilder class Append() method.

The StringBuilder Append() method appends the String representation of a specified object to this instance. The StringBuilder Append(StringBuilder) method overload appends the string representation of a specified string builder to this instance.

The StringBuilder Append(System.Text.StringBuilder? value) method overload has a parameter named value. The value parameter is the string builder to append. This method returns a StringBuilder which is a reference to this instance after the append operation is completed.

The Append() method modifies the existing instance of this class. This method does not return a new class instance. Because of this, .net c# developers can call a method or property on the existing reference and they do not have to assign the return value to a StringBuilder object.

So finally, using the StringBuilder class Append(StringBuilder) method overload the .net c# developers can append another StringBuilder to a StringBuilder instance.
stringbuilder-append-another-stringbuilder.aspx

<%@ 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("this is a text. ");
        StringBuilder stringb2 = new StringBuilder("this is another text.");

        stringb.Append(stringb2);
        
        Label1.Text = stringb.ToString();
    }  
</script>  
  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>c# example - stringbuilder append another stringbuilder</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <div>  
        <h2 style="color:MidnightBlue; font-style:italic;">  
            c# example - stringbuilder append another stringbuilder
        </h2>  
        <hr width="550" align="left" color="Gainsboro" />  
        <br />  
        <asp:Label   
            ID="Label1"   
            runat="server"  
            Font-Size="Large"  
            >  
        </asp:Label>  
        <br /><br /><br />
        <asp:Button   
            ID="Button1"   
            runat="server"   
            Text="stringbuilder append another stringbuilder"  
            OnClick="Button1_Click"
            Height="40"  
            Font-Bold="true"  
            />  
    </div>  
    </form>  
</body>  
</html>
More c# examples