Format your c#,VB code for websites and blog
This tool allows you to format your C#, VB, HTML, XML, T-SQL or MSH (code name Monad) code for publishing on a web site or in a blog.

below is a sample c# code formated

privatevoid grdAttachments_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
        {
            CheckBox chk;
            if(e.Item.ItemIndex>=0)
            {
                e.Item.Attributes.Add("onmouseover", "this.style.background='#cdcdcd';");
                e.Item.Attributes.Add("onmouseout", "this.style.background='#cdcdcd';");

                e.Item.Cells[2].Attributes.Add("onmouseout", "this.style.background='#bbbbbb';");
                e.Item.Cells[2].Attributes.Add("onmouseout", "this.style.background='#ffffff';");

                
                Button btn=new Button();

                btn = (Button)e.Item.Cells[2].Controls[0];//if the button is in the 4th cell

                btn.Attributes.Add("onclick","return confirm('" + e.Item.Cells[0].Text  + "')"); 
                
                //btn.Visible    =    false;

                chk=(CheckBox)e.Item.Cells[0].FindControl("CheckBox1");
                chk.Attributes.Add("Onclick","javascript:Alert();");
                //chk.Visible=    false;
                
                DropDownList drp;
                drp    =    (DropDownList)e.Item.Cells[0].FindControl("DropDownList3");
                drp.Items.Add(new ListItem("aaaa","1"));
              
            }

        }

more info

also google have a tool which is used for code formating .
more info