Question

请教如何修改WPFDatePicker控件的默认值默

Answer 1

修改默认“Select a date”为中文，需要使用Expression Blend修改控件模板，在模板中修改DatePickerTextBox的Watermark属性
C# code

[TemplatePartAttribute(Name = "TextBox", Type = typeof(DatePickerTextBox))]

using System.Windows.Controls.Primitives;

public class MyDatePicker : DatePicker
{
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
DatePickerTextBox box = base.GetTemplateChild("TextBox") as DatePickerTextBox;
box.Watermark = "请选择一个日期";
}
}