c# - How to trim a StringBuilder

c# example - stringbuilder trim
stringbuilder-trim.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(" Blacksmith Plover. Ringed Plover. ");

        Label1.Text = "stringbuilder content: [" +stringb.ToString()+ "]";

        //this line trim stringbuilder contents.
        string trimmedString = stringb.ToString().Trim();

        stringb.Clear();
        stringb.Append(trimmedString);

        Label1.Text += "<br /><br />stringbuilder trimmed content: [" + stringb.ToString() + "]";
    }  
</script>  
  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>c# example - stringbuilder trim</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <div>  
        <h2 style="color:MidnightBlue; font-style:italic;">  
            c# example - stringbuilder trim
        </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 trim"  
            OnClick="Button1_Click"
            Height="40"  
            Font-Bold="true"  
            />  
    </div>  
    </form>  
</body>  
</html>
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