There are number of ASP.NET mobile Web Forms controls support user input, including the TextBox and List controls. You can place one or more user input controls, along with other mobile controls such as labels, on the form when you are constructing a form that allows user inputs. You cannot raise an event for any of the controls until the user completes. We should have only a Limited number of controls placed on a single form. For most user input forms, you also need to provide a way for the user to submit input back to the server. We can accomplish this by placing a Command control on the form. All the samples in this section use a Command control. For larger amount of input a TextView control is a better choice.

You can alter the behavior of the TextBox control by setting the Password or Numeric property of the TextBox control in the mobile web forms. Password property renders a text box that hides its input and shows only some special characters like all the applications do. Setting the Numeric property of the control renders a text box that restricts its input to numeric characters. The following sample illustrates the use of these properties. The password attribute of the textbox control can be set to true or false to specify whether the textbox should be treated as a password field. A password field will hide the input by displaying * (stars) instead of ordinary text

Note: This property are only advisory. You will only get the preferred result on target device that support these properties. For example, most HTML browser cannot restrict the input of a text box to numeric characters. However, the numeric mode is very useful on cell phones, because the phones automatically place the keypad in numeric mode when editing a numeric text box.

Another mobile control, SelectionList, can also be used as part of an input form. The SelectionList mobile control differs from the List mobile control:

• Requires an additional submission mechanism on the form, such as a Command control, to send results back to the server.

• Does not generate OnItemCommand events.

• Maintains state information about one or more currently selected items.

• Provides different renderings by using list boxes, drop-down lists, checklists and option buttons.

Sometimes the user is allowed to select from an list of predefined values. For this TextBox and TextView controls are not well suited.

SelectionList Control supports drop down lists, check boxes and radio buttons. Menus and lists are also supported by SelectionList Control.

Below listed are some of the controls which is been supported by mobile web forms.