## AutoConnectButton ### Constructor ```cpp AutoConnectButton(const char* name = "", const char* value = "", const String& action = String()) ```

**Parameters**: nameThe element name.; valueValue of the element.; actionNative code of the action script executed when the button is clicked.

### Public member variables #### name The element name.

**Type**: String

#### value Value of the element.

**Type**: String

#### action HTML native code of the action script to be executed when the button is clicked. It is mostly used with a JavaScript to activate a script.[^1]

**Type**: String

[^1]:JavaScript can be inserted into a custom Web page using AutoConnectElement. ### Public member functions #### typeOf ```cpp ACElement_t typeOf(void) ``` Returns type of AutoConnectElement.

**Return value**: AC_Button

## AutoConnectCheckbox ### Constructor ```cpp explicit AutoConnectCheckboxBasis(const char* name = "", const char* value = "", const char* label = "", const bool checked = false) ```

**Parameters**: nameThe element name.; valueValue of the element.; labelA label string prefixed to the checkbox.; checkChecked state of the checkbox.

### Public member variables #### name The element name.

**Type**: String

#### value Value of the element. It becomes a value attribute of an HTML `#!html ` tag.

**Type**: String

#### label A label is an optional string. A label is always arranged on the right side of the checkbox. Specification of a label will generate an HTML `#!html ` tag with an `id` attribute. The checkbox and the label are connected by the id attribute.

**Type**: String

#### checked It indicates the checked status of the checkbox. The value of the checked checkbox element is packed in the query string and sent by submit.

**Type**: Boolean

### Public member functions #### typeOf ```cpp ACElement_t typeOf(void) ``` Returns type of AutoConnectElement.

**Return value**: AC_Checkbox

## AutoConnectElement ### Constructor ```cpp AutoConnectElement(const char* name = "", const char* value = "") ```

**Parameters**: nameThe element name.; valueValue of the element.

### Public member variables #### name The element name.

**Type**: String

#### value Value of the element. It is output as HTML as it is as a source for generating HTML code.

**Type**: String

### Public member functions #### typeOf ```cpp ACElement_t typeOf(void) ``` Returns type of AutoConnectElement.

**Return value**: AC_Element

## AutoConnectInput ### Constructor ```cpp AutoConnectInput(const char* name = "", const char* value = "", const char* label = "", const char* pattern = "", const char* placeholder = "") ```

**Parameters**: nameThe element name.; valueValue of the element.; labelLabel string.; patternRegular expression string for checking data format.; placeholderA placeholder string.

### Public member variables #### name The element name.

**Type**: String

#### value Value of the element. It becomes a value attribute of an HTML `#!html ` tag. An entered text in the custom Web page will be sent with a query string of the form. The value set before accessing the page is displayed as the initial value.

**Type**: String

#### label A label is an optional string. A label is always arranged on the left side of the input box. Specification of a label will generate an HTML `#!html ` tag with an id attribute. The input box and the label are connected by the id attribute.

**Type**: String

#### pattern A pattern specifies a regular expression that the input-box's value is checked against on form submission.

**Type**: String

#### placeholder A placeholder is an option string. Specification of a placeholder will generate a `placeholder` attribute for the input tag.

**Type**: String

### Public member functions #### typeOf ```cpp ACElement_t typeOf(void) ``` Returns type of AutoConnectElement.

**Return value**: AC_Input

#### isValid ```cpp bool isValid(void) ``` Evaluate the pattern as a regexp and return whether value matches. Always return true if the pattern is undefined.

**Return value**: trueThe value matches a pattern.; falseThe value does not match a pattern.

## AutoConnectRadio ### Constructor ```cpp AutoConnectRadio(const char* name = "", std::vector const& values = {}, const char* label = "", const ACArrange_t order = AC_Vertical, const uint8_t checked = 0) ```

**Parameters**: nameThe element name.; valuesAn array of values of the radio buttons. Specifies an [std::vector](https://en.cppreference.com/w/cpp/container/vector) object.; labelLabel string.; orderThe direction to arrange the radio buttons.; checkedAn index to be checked in the radio buttons.

### Public member variables #### name The element name.

**Type**: String

#### values An array of String type for the radio button options. It is an initialization list can be used. The `#!html ` tags will be generated from each entry in the values.

**Type**: std::vector<String>

#### label A label is an optional string. A label will be arranged in the left or top of the radio buttons according to the [order](#order).

**Type**: String

#### order Specifies the direction to arrange the radio buttons. A label will place in the left or the top according to the **_order_**. It is a value of **ACArrange_t** type and accepts one of the following:

**Type**: ACArrange_t - **`AC_Horizontal`** : Horizontal arrangement. - **`AC_Vertical`** : Vertical arrangement.

#### checked Specifies the index number (1-based) of the **values** to be checked. If this parameter is not specified neither item is checked.

**Type**: uint8_t

### Public member functions #### typeOf ```cpp ACElement_t typeOf(void) ``` Returns type of AutoConnectElement.

**Return value**: AC_Radio

#### add ```cpp void add(const String& value) ``` Adds an option for the radio button.

**Parameters**: valueAn option string to add to the radio button.

#### check ```cpp void check(const String& value) ``` Indicates the check of the specified option for the radio buttons. You can use the **check** function for checking dynamically with arbitrary of the radio button.

**Parameters**: valueAn option string to be checked.

#### empty ```cpp void empty(const size_t reserve = 0) ``` Clear the array of option strings that AutoConnectRadio has in the values. When a **_reserve_** parameter is specified, a vector container of that size is reserved.

**Parameters**: reserveReserved size of a container for the radio button option strings.

#### operator [ ] ```cpp const String& operator[] (const std::size_t n) ``` Returns a value string of the index specified by **_n_**.

**Parameters**: nIndex of values array to return. Its base number is 0.
**Return value**: A reference of a value string indexed by the specified the **n**.

#### size ```cpp size_t size(void) ``` Returns number of options which contained.

**Return value**: Number of options which contained.

#### value ```cpp const String& value(void) const ``` Returns current checked option of the radio buttons.

**Return value**: A String of an option current checked. If there is no checked option, a null string returned.

## AutoConnectSelect ### Constructor ```cpp AutoConnectSelect(const char* name = "", std::vector const& options = {}, const char* label = "") ```

**Parameters**: nameThe element name.; optionsAn array of options of the select element. Specifies an [std::vector](https://en.cppreference.com/w/cpp/container/vector) object.; labelLabel string.

### Public member variables #### name The element name.

**Type**: String

#### options An array of String type for the selection options. It is an initialization list can be used. The `#!html