Clarion Community Help

Commands

Button

Performs a task, and causes the form to be posted to the server for processing.

LinkButton

Like a Button control, but has the appearance of a hyperlink, and causes the form to be posted to the server for processing.

ImageButton

Like a Button control, but incorporates an image instead of text, and causes the form to be posted to the server for processing.

HtmlAnchor

Enables Web navigation.

HtmlButton

Performs a task. This control can contain any arbitrary HTML, and therefore it is very flexible in look and feel. However, it is not compatible with all browsers.

HtmlInputButton

Performs a task. This button is supported on all browsers.

HtmlInputImage

Like a button, but displays a graphic.

Comparison to a value

CompareValidator

Compares a user's entry against a constant value or a property value of another control using a comparison operator (less than, equal, greater than, and so on).

Date setting

Calendar

Displays a graphic calendar to allow users to select a date.

File transfer

HtmlInputFile

Allows users to specify files to upload to a server. (The server must allow uploads.)

Forms

HtmlForm

Defines an HTML form. The values of controls within the form are posted to the server when the form is submitted.

Graphics Display

Image

Displays an image.

AdRotator

Displays a sequence (predefined or random) of images.

HtmlImage

Displays an image.

Grouping other controls

CheckBoxList

Creates a collection of check boxes.

Panel

Creates a borderless division on the form that serves as a container for other controls.

RadioButtonList

Creates a grouping of radio buttons. Inside the group, only one button can be selected.

Information storage

HtmlInputHidden

Stores state information for a form (information that needs to be available with each round trip to the server).

Navigation

HyperLink

Creates a Web navigation link.

HtmlAnchor

Creates a Web navigation link.

None

ValidationSummary

Displays the error messages of all other validation controls on the page in a single unified summary.

Other functions

HtmlGenericControl

Creates a basic object model (properties, methods, events) for any HTML element converted to a control.

Pattern matching

RegularExpressionValidator

Checks that the entry matches a pattern defined by a regular expression. This type of validation allows you to check for predictable sequences of characters, such as those in social security numbers, e-mail addresses, telephone numbers, postal codes, and so on.

Place holding

PlaceHolder

Enables you to place an empty container control in the page and then dynamically add child elements to it at run time.

Literal

Renders static text into a Web page without adding any HTML elements.

XML

Reads XML and writes it into a Web Forms page at the location of the control.

Range checking

RangeValidator

Checks that a user's entry is between specified lower and upper boundaries. You can check ranges within pairs of numbers, alphabetic characters, and dates. Boundaries can be expressed as constants or as values derived from another control.

Required entry

RequiredFieldValidator

Ensures that the user does not skip an entry.

Selection from a list

DropDownList

Allows users to select from a list that appears when the user clicks a button.

ListBox

Allows users to select from a list that appears when the user clicks a button.

Repeater

Displays information from a data source using a set of HTML elements and controls you specify, repeating the elements once for each record in the data set.

DataList

Like the Repeater control, but with more formatting and layout options, including the ability to display information in a table. The DataList control also allows you to specify editing behavior.

DataGrid

Displays information, usually data-bound, in tabular form with columns. Provides mechanisms to allow editing and sorting.

HtmlSelect

Displays a list of text and graphical items (icons).

Table manipulation

Table

Creates a table.

TableCell

Creates an individual cell within a table row.

TableRow

Creates an individual row within a table.

HtmlTable

Creates a table.

HtmlTableRow

Creates an individual row within a table.

HtmlTableCell

Creates an individual cell within a table row.

Text display (read only)

Label

Displays text that users cannot directly edit.

Text edit

TextBox

Displays text that can be edited by users at run time or changed programmatically.

HtmlInputText

Displays text that can be edited by users at run time, or changed programmatically.

HtmlTextArea

Displays large quantities of text. Used for multi-line text entry and display.

User-defined

CustomValidator

Checks the user's entry using validation logic that you code yourself.

Value setting

CheckBox

Displays a box that users can click to turn on and off.

CheckBoxList

Creates a grouping of check boxes. The list control makes it easy to create check boxes using data binding.

RadioButton

Displays a single button that can be turned on or off.

RadioButtonList

Creates a grouping of radio buttons. Inside the group, only one button can be selected.

HtmlInputCheckbox

Creates a box that users can click to turn on and off. The CheckBox control includes a label.

HtmlInputRadioButton

Displays a button that can be turned on or off. Radio buttons are typically used to allow the user to select one item from a short list of fixed options.