TextBox newTextbox = new TextBox(); this.Controls.Add(newTextbox);
CheckBox newCheckbox = new CheckBox(); myPanel.Controls.Add(newCheckbox);
DropDownList newDropdown = new DropDownList(); this.Page.Controls.Add(newDropdown);This code creates a new dropdown list control and adds it to the current web page using the Page.Controls.Add method. The Input Add method is part of the System.Windows.Forms namespace in the .NET Framework, which is a package library that provides a wide range of GUI-related classes and controls for Windows applications.