Assignable angular expression to data-bind to.

Property name of the form under which the control is published.

Adds required validation error key if the value is not entered.

Adds required attribute and required validation constraint to the element when the ngRequired expression evaluates to true. Use ngRequired instead of required when you want to data-bind to the required attribute.

Sets minlength validation error key if the value is shorter than minlength.

Sets maxlength validation error key if the value is longer than maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any length.

Similar to ngPattern except that the attribute value is the actual string that contains the regular expression body that will be converted to a regular expression as in the ngPattern directive.

Sets pattern validation error key if the ngModel $viewValue does not match a RegExp found by evaluating the Angular expression given in the attribute value. If the expression evaluates to a RegExp object, then this is used directly. If the expression evaluates to a string, then it will be converted to a RegExp after wrapping it in ^ and $ characters. For instance, "abc" will be converted to new RegExp('^abc$').
Note: Avoid using the g flag on the RegExp, as it will cause each successive search to start at the index of the last search's match, thus not taking the whole input value into account.

Angular expression to be executed when input changes due to user interaction with the input element.

If set to false Angular will not automatically trim the input. This parameter is ignored for input[type=password] controls, which will never trim the input.

(default: true)