| type | (string) the type of a control, set it to "combo" |
| name | (string) the name of a control |
| id | (string) the id of a control, auto-generated if not set |
| value | (string, array) specifies the id(s) of Combo items from data collection which values should appear in the input:- if multiselection:true is set for a combo, the property takes an array of string values as: value: ["id_1","id_2","id_3"],
- if multiselection:false is set or the multiselection config is not defined, the property gets either of the two values: value:"id_1" or value: ["id_1"]
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| data | (array) an array of Combo options. Each option is an object with a set of key:value pairs - attributes of options and their values.- The id attribute is returned and goes to form data. This attribute should always be fulfilled to avoid unexpected behavior
- The value attribute is displayed in the input field
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| validation | (function) the validation function, takes as a parameter the value to validate and returns true/false to indicate the result of validation |
| width | (string, number, "content") the width of a control |
| height | (string, number, "content") the height of a control |
| padding | (string, number) sets padding between a cell and a border of the Combo control |
| css | (string) adds style classes to a control |
| placeholder | (string) sets a placeholder in the input of Combo |
| disabled | (boolean) defines whether a control is enabled (false) or disabled (true) |
| required | (boolean) defines whether the field with Combo is required (for a form) |
| hidden | (boolean) defines whether a control is hidden |
| readonly | (boolean) makes Combo readonly (it is only possible to select options from the list, without entering words in the input) |
| label | (string) specifies a label for a control |
| labelWidth | (string, number) sets the width of the label of a control |
| hiddenLabel | (boolean) invisible label that will be used to identify the input on the server side |
| labelPosition | (string) defines the position of a label: "left"|"top" |
| helpMessage | (string) adds a help message to a control |
| preMessage | (string) a message that contains instructions for interacting with the control |
| successMessage | (string) a message that appears in case of successful validation of the control value |
| errorMessage | (string) a message that appears in case of error during validation of the control value |
| itemHeight | (number) sets the height of a cell in the list of options |
| listHeight | (number) sets the height of the list of options |
| template | (function) sets a template of displaying options in the popup list |
| filter | (function) sets a custom function for filtering Combo options. Check the details. |
| multiselection | (boolean) enables selection of multiple options in Combo |
| selectAllButton | (boolean) defines whether the Select All button should be shown |
| itemsCount | (boolean, function) shows the total number of selected options |
| virtual | (boolean) enables dynamic loading of data on scrolling the list of options |