CODEWITHSUNDEEP
c#wpfdatepicker
user7157732
user7157732

Reputation: 347

DatePicker displays default date 1/1/0001 - C# WPF

I am using a datepicker in C# WPF and it is defined in XAML as:

  <DatePicker  x:Name="TheDate"  Width="200" Text="{Binding ReportPlanningDate ,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged,ValidatesOnDataErrors=True}" IsTodayHighlighted="True" />

Binding property ReportPlanningDate is defined as:

public DateTime ReportPlanningDate
        {
            get { return _ReportPlanningDate; }
            set
            {
                if (_ReportPlanningDate == value) return;
                _ReportPlanningDate = value;
                PlanningDate = _ReportPlanningDate;
                OnPropertyChanged("ReportPlanningDate");
            }
        }
        public DateTime _ReportPlanningDate;
        public DateTime PlanningDate;

Even though I set IsTodayHighlighted to True, it displays 1/1/0001. What am I missing here?

Upvotes: 1

Views: 4706

Answers (3)

user6730148
user6730148

Reputation:

Mark the backing field as private

private DateTime _ReportPlanningDate; // only the property is public
//public DateTime PlanningDate; what's this?

You can set it in the constructor of the ViewModel

public class MyVM : ViewModelBase {
    public MvVM() {
        _ReportPlanningDate = DateTime.Now.Date;

and you should bind the selected date of the date picker

<DatePicker SelectedDate={Binding ReportPlanningDate}

Upvotes: 1

Abe Baehaki
Abe Baehaki

Reputation: 61

IsTodayHighlighted is only used to highlight today's date. Not setting the default date. If you want to set the default date, you need to set the SelectedDate property. 

<my:DatePicker SelectedDate="{x:Static sys:DateTime.Now}"/>

Add this reference if needed.

xmlns:sys="clr-namespace:System;assembly=mscorlib"

As mentioned in this link.

Upvotes: 1

Shadowed
Shadowed

Reputation: 966

IsTodayHighlighted only highlights current date (if you scroll calendar to current day, you will see it is highlighted) but it doesn't select it. If you have property Text bound to a property of ViewModel, it is data driven, so it will select date based on data. As data is not set it has default value (1.1.0001.).
To solve this, assign default value: 

public DateTime _ReportPlanningDate = DateTime.Now;

Upvotes: 1

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