1, Disabled:
(1) Adding disabled to input allows the form to be disabled,
<input class= "Form-control input-lg" id= "Disabledinput" type= "text" placeholder= "form is disabled and cannot be entered" disabled></ Div>
(2) If fieldset set the Disabled property, the entire domain will be disabled.
class for class class for class= "Form-control" ><option> not selectable </option></select></div></fieldset>
2, Legend: If there is an input box in the legend, this input box cannot be disabled ,
<legend><input type= "text" class= "Form-control" placeholder= "Obviously I'm gray, but I'm not banned, don't believe me?" Click to try "/></legend>
3, Form verification status: Add Has-feedback, and add a
<span class= "Glyphiconglyphicon-ok form-control-feedback" ></span>
Label, the small icon appears, and under <input> add <span class= "Help-block" > to display "The correct information you have entered".
<form role= "Form" >
<div class= "Form-group has-success has-feedback" >
<label class= "Control-label" for= "InputSuccess1" > Success Status </label>
<input type= "text" class= "Form-control" id= "InputSuccess1" placeholder= "Success Status" >
<span class= "Help-block" > The information you entered is correct </span>
<span class= "Glyphicon glyphicon-ok form-control-feedback" ></span>
</div>
<div class= "Form-group has-warning has-feedback" >
<label class= "Control-label" for= "inputWarning1" > Warning status </label>
<input type= "text" class= "Form-control" id= "inputWarning1" placeholder= "Warning Status" >
<span class= "Help-block" > Please enter the correct information </span>
<span class= "Glyphicon glyphicon-warning-sign form-control-feedback" ></span>
</div>
<div class= "Form-group has-error has-feedback" >
<label class= "Control-label" for= "InputError1" > Error status </label>
<input type= "text" class= "Form-control" id= "InputError1" placeholder= "Error status" >
<span class= "Help-block" > You are entering the information is wrong </span>
<span class= "Glyphicon glyphicon-remove form-control-feedback" ></span>
</div>
</form>
About bootstrap--form controls (disabled form disabled, showing form validation styles)