value

sets the initial value for a control

string|number value;

Example

{
    view:"radio", label:"Branch", 
    value:2, 
    options:[
        { id:1, value:"Master" }, 
        { id:2, value:"Branch" } // the initially selected item
    ]
}

Related samples

Editable Combo Box ('combo')

Details

All controls fall into:

single-value - those containing a string or a number;
multiple-value - those containing an array of values;

In case of multiple-value controls, the property points to the ID of the initially chosen option.

Value of the control may be:

text value in the input text and textarea field;
selected item like date in calendar and color in the colorboard;
state of the two-state control (checkbox, radio, toggle);
selected option of integral buttons (tabbar, tabview, segmented;
selected option of select, richselect, and combo;
string with selected options of a multiselect and multicombo control.