Do not set default value

[Son Hoang]

 Xamarin.Forms  -> Picker -> Datetimepicker

Hello, when using Datetimepicker, if the date is DBNull, how can I set the default value to the current date. Thank you very much!

[Sakthivel Palaniyappan]

Hi Son,

Greetings from Syncfusion.

We have analyzed your query and we can achieve your requirement by setting SelectedItem to the SfPicker as like below code  snippet.

ViewModel:

 

  public class DateTimeViewModel : INotifyPropertyChanged 

    { 

        private ObservableCollection<object> _startdate; 

 

        public ObservableCollection<object> StartDate 

        { 

            get { return _startdate; } 

            set { _startdate = value; RaisePropertyChanged("StartDate"); } 

        } 

 

        public DateTimeViewModel() 

        { 

            ObservableCollection<object> todaycollection = new ObservableCollection<object>(); 

 

            //Select today dates 

            todaycollection.Add(DateTime.Now.Date.Year.ToString()); 

 

            todaycollection.Add(CultureInfo.CurrentCulture.DateTimeFormat.GetMonthName(DateTime.Now.Date.Month).Substring(0, 3)); 

            if (DateTime.Now.Date.Day < 10) 

                todaycollection.Add("0" + DateTime.Now.Date.Day); 

            else 

                todaycollection.Add(DateTime.Now.Date.Day.ToString()); 

 

            if (DateTime.Now.Hour < 10) 

                todaycollection.Add("0" + DateTime.Now.Hour.ToString()); 

            else 

                todaycollection.Add(DateTime.Now.Hour.ToString()); 

 

            if (DateTime.Now.Minute < 10) 

                todaycollection.Add("0" + DateTime.Now.Minute.ToString()); 

            else 

                todaycollection.Add(DateTime.Now.Minute.ToString()); 

 

            this.StartDate = todaycollection; 

        } 

    } 

XAML:

 

  <local:DateTimePicker 

            x:Name="date" 

            ColumnHeaderHeight="40" 

            HorizontalOptions="Center" 

            PickerHeight="400" 

            PickerMode="Dialog" 

            PickerWidth="300" 

            SelectedItem="{Binding StartDate}" 

            VerticalOptions="Center"> 

We have created sample based on your requirement and please find the sample from below.

Sample:
https://www.syncfusion.com/downloads/support/directtrac/general/ze/DateTimePicker1751972043.zip

Please let us know if you have any other queries.

Regards,
Sakthivel P. 

[Son Hoang]

Thank kiu so much Sakthivel P. <3

[Sakthivel Palaniyappan]

Hi Son,

Thanks for the update. Please get back us if you need further assistance on this.

Regards,
Sakthivel P.