This is probably got a simple answer to it, but I am having problems just formatting the date for a dataform field..
<df:DataForm x:Name="Form1" ItemsSource="{Binding Mode=OneWay}" AutoGenerateFields="True"
AutoEdit="True" AutoCommit="False"
CommitButtonContent="Save"
CancelButtonContent="Cancel"
CommandButtonsVisibility="Commit"
LabelPosition="Top" ScrollViewer.VerticalScrollBarVisibility="Disabled"
EditEnded="NoteForm_EditEnded">
<df:DataForm.EditTemplate>
<DataTemplate> 开发者_如何学编程
<StackPanel>
<df:DataField>
<TextBox Text="{Binding Title, Mode=TwoWay}"/>
</df:DataField>
<df:DataField>
<TextBox Text="{Binding Description, Mode=TwoWay}" AcceptsReturn="True" HorizontalScrollBarVisibility="Auto"
VerticalScrollBarVisibility="Auto" Height="" TextWrapping="Wrap" SizeChanged="TextBox_SizeChanged"/>
</df:DataField>
<df:DataField>
<TextBlock Text="{Binding Username}"/>
</df:DataField>
<df:DataField>
<TextBlock Text="{Binding DateCreated}"/>
</df:DataField>
</StackPanel>
</DataTemplate>
</df:DataForm.EditTemplate>
</df:DataForm>
I have bound this to a note class which has the annotation for field DateCreated:
/// <summary>
/// Gets or sets the date created of the noteannotation
/// </summary>
[Display(Name="Date Created")]
[Editable(false)]
[DisplayFormat(DataFormatString = "{0:u}", ApplyFormatInEditMode = true)]
public DateTime DateCreated { get; set; }
Whatever I set the dataformatstring it comes back as: eg 4/6/2010 10:02:15 AM
I want this formatted as yyyy-MM-dd HH:mm:ss
I have tried the custom format above {0:yyyy-MM-dd hh:mm:ss} but it remains the same output. The same happens for {0:u} or {0:s}.
This was solved by adding a converter to the data binding:
<df:DataField>
<TextBlock Text="{Binding DateCreated, Converter={StaticResource DateConverter}}"/>
</df:DataField>
The DateConverter is just a class than implements the IValueConverter interface. Example below shows the date time format I needed..
/// <summary>
/// Date time formatter - for short dates for data bound items
/// </summary>
public class DateConverter : IValueConverter
{
#region Public Methods
#region IValueConvertor Members
/// <summary>
/// Convert data item to a short date
/// </summary>
/// <param name="value">Value</param>
/// <param name="targetType">Target type</param>
/// <param name="parameter">Paramter</param>
/// <param name="culture">Culture</param>
/// <returns>Converted object</returns>
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var date = (DateTime)value;
return (date.ToString("dd/MM/yyyy HH:mm:ss"));
}
/// <summary>
/// Convert back data item to a short date
/// </summary>
/// <param name="value">Value</param>
/// <param name="targetType">Target type</param>
/// <param name="parameter">Paramter</param>
/// <param name="culture">Culture</param>
/// <returns>Converted object</returns>
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var s = (string)value;
return (DateTime.Parse(s));
}
#endregion IValueConvertor Members
#endregion Public Methods
}
This works like a treat - could be improved with some null checking! :)
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