Question

如何给datePicker赋值

Answer 1

修改默认Select a date文需要使用Expression Blend修改控件模板模板修改DatePickerTextBoxWatermark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 = "请选择期";
}
}
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