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Controls / Input / DropDown / Creating a Custom Date Picker using C1DropDown
Creating a Custom Date Picker using C1DropDown

This topic provides you a walkthrough to creating a custom date picker using the C1DropDown control. For this, you begin by creating an Android application, and initializing a C1DropDown, a C1Calendar control, and a C1MaskedTextField control. To create a date picker, you need to set the header property to the object of the MaskedTextField and DropDown property to the object of the C1Calendar class.

The image below shows how a custom date picker created using the C1DropDown appears.

Add the following code to the ViewController file to display the control.

C#
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public class DropDownActivity : Activity 
   {
        C1DropDown dropdown;
        C1MaskedTextView header;
        C1Calendar calendar;
         
     protected override void OnCreate(Bundle savedInstanceState)
      {
        base.OnCreate(savedInstanceState);
        dropdown = new C1DropDown(this);
        header = new C1MaskedTextView(this);
        header.Mask = Resources.GetString(Resource.String.date_mask_string);

        calendar = new C1Calendar(this);
        dropdown.Header = header;
        dropdown.DropDown = calendar;
        dropdown.DropDownHeight = 800;
        dropdown.IsAnimated = true;

        calendar.SelectionChanged += (object sender, CalendarSelectionChangedEventArgs e) =>
                        {
        dropdown.IsDropDownOpen = true;
        System.DateTime  dateTime = calendar.SelectedDates[0];
        string strDate = dateTime.ToString(Resources.GetString(Resource.String.date_mask_format));
        header.Value = strDate;
       };

       LinearLayout layout = new LinearLayout(this);
       LinearLayout.LayoutParams parameters = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MatchParent, LinearLayout.LayoutParams.WrapContent);
       layout.AddView(dropdown, parameters);
       SetContentView(layout);
        }
      }