c# - How can I disable DatePicker from viewmodel WPF MVVM -

i developing wpf application using wpf, have combobox selected item bound viewmodel , have datepicker. want disable datepicker in view depending on selecteditem of combobox.

the combo:

<combobox x:name="combobox2" grid.row="6" grid.column="1" selectedindex="0" itemssource="{binding path=duedateoptions}" selectedvalue="{binding urgent}"> 

the datepicker:

<datepicker x:name="datepicker1" grid.row="6" grid.column="2" selecteddate="{binding duedate, mode=twoway}"/> 

how can achieve purpose, hope little help.

one way achieve is, adding property viewmodel , binding isenabled property of datepicker that. need set property inside setter of urgent property: (assuming have property named urgent in viewmodel):

class yourviewmodel {     private bool allowpickdate;     public bool allowpickdate {         {             return this.allowpickdate;         }         set {             if (this.allowpickdate != value) {                 this.allowpickdate = value;                 this.onpropertychanged("allowpickdate");             }        }    }    public urgenttype urgent {        {            ....        }        set {            ....            if (value == [whatever expect]) {                this.allowpickdate = true;            }            else {                this.allowpickdate = false;            }        }   } 

xaml:

  <datepicker x:name="datepicker1" isenabled={binding allowpickdate} grid.row="6" grid.column="2" selecteddate="{binding duedate, mode=twoway}"/>