Transfer¶

Description¶

A Transfer component in a form is a user interface element that allows users to move items between two lists or collections.

It's commonly used to create interactive selections, manage data assignments, or filter content.

Use Case¶

Assigning items: Allocate tasks, resources, or responsibilities to individuals or groups.
Creating custom lists: Build personalized selections of products, features, or preferences.
Filtering content: Narrow down options based on specific criteria or preferences.
Managing group memberships: Add or remove users from teams or access lists.
Product configuration: Select desired features or components for a product.
Email management: Move emails between folders or categorize them.

Interactivity¶

API¶

Events¶

Name	Description
`onChange (element)`	The onChange event occurs when the value of a field is changed

Methods¶

Name	Description	Parameters
`this.addClassName`	Add style class to a form item	`(fields: String`\|`String[], className: String)`
`this.removeClassName`	Remove style class from a form item	`(fields: String`\|`String[], className: String)`
`this.hide`	Hides the field	`(fields: String`\|`String[])`
`this.show`	Displays the field	`(fields: String`\|`String[])`
`this.disable`	Disable transfer field from user interaction	`(fields: String`\|`String[])`
`this.enable`	Enable transfer field from user interaction	`(fields: String`\|`String[])`

Info

The show() and hide() methods can also be used to control the visibility of the transfer component in response to user input.
Fields refers to a component ID or a list of component IDs. You can fetch the ID from the Component Attribute panel in the Page Builder.
Before using this.show(fields), make sure the component is hidden. This can be done using this.hide(fields) or by enabling the Hidden checkbox in the Component Attribute panel.
Before using this.enable(fields), make sure the component is disabled. This can be done using this.disable(fields) or by enabling the Disabled checkbox in the Component Attribute panel.

Steps to use the methods for the Page Builder components¶

Go to Form Attribute Action Panel Setting (Mounted | refresh | click 'Add action').
Write the method/code as shown in the Example below.
Click on Save.
On the main screen click on Save again.
Click on Preview to see the code in action.

Example

this.addClassName(fields, className)
- Go to Form Attribute Style Sheets add the class
```
.abc{ // abc is the class name
background-color: red;
}
```
- Follow the steps mentioned above, under Steps to use the methods for the Page Builder components
- this.addClassName('transfer_jhg5bttj', 'abc')

this.removeClassName(fields, className)

this.removeClassName('transfer_jhg5bttj', 'abc')

this.hide(fields)

var fields= ['transfer_jhg5bttj']
this.hide(fields)

this.show(fields)

var fields= ['transfer_jhg5bttj']
this.show(fields)

this.disable(['fields'])
```
this.disable(['transfer_jhg5bttj'])
```
this.enable(['fields'])
```
this.enable(['transfer_jhg5bttj'])
```

Config¶

Name	Description	Icon
ID	The transfer component's unique identifier
Name	[Optional] The display name of the Transfer field
Width	[Optional] Width of the field
Label Width	Width of the label associated with an input field. It determines the horizontal space occupied by the label text
Label Wrap	If the label is longer than the allowed width the text will continue on another line
Hide Label	Hides the label on the form
Text Prompt	A description to aid the user when completing the field
Searchable	Make the Source and Target options searchable
Option	Choose either Static or Dynamic way of adding data to the options of the Transfer Static data refers to a fixed set of options that are pre-defined and loaded into the transfer at the time of initialization Dynamic data are options fetched as needed from sources like databases or APIs. The transfer updates choices based on user selections. You select from Data source which refers to the origin of the data; Function which refers to the code that manipulates the data, and Assigned Value which refers to the specific value stored or associated with a data element
Titles	Change the titles of your transfer lists
Custom Class	An HTML class attribute which allows further customisation See Form Attribute > Style Sheets
Attribute Action	Enable Data Binding to connect the data to UI. Enable Hidden action to hide the field. Enable Disabled action to make the field unusable.
Action Settings	Click on the drop-down to select the pre-defined methods you wish to apply to your component. In this case, you can choose either mounted or refresh for `onChange`

Validation¶

Form validation is the process of checking the data entered into a form to ensure that it's valid and complete.

This helps to prevent users from submitting forms with invalid data, which can cause problems for the application that's processing the form.

Form validation can be performed using a variety of methods, including:

Name	Description
Required	If enabled, then the field value can't be empty, otherwise an error message is emitted
Custom Validation Rules	(rule, value, callback) => {
	rule: Verification rule, you can view the verification configuration information through this parameter; rule.field can get the field identifier of the current verification
	value: Value of the current field
	callback: Callback function (must be called) upon completion of validation; callback('Error message')/ callback(new Error('Error message')). These are two ways to return an error message

Info

The callback() function is also called to verify success in the custom validation method.

First time User?¶

If you are using the Page Builder components on the ConnexCS platform for the first time, we request you to use our guide on steps to use the Components.