WPF--DependencyProperty

来源:互联网 发布:杨辉三角java代码递归 编辑:程序博客网 时间:2024/03/29 22:13

 WPF中的依赖属性的写法:

  【依赖属性为扩展类的使用】

  参考http://msdn.microsoft.com/zh-cn/library/cc221408(v=VS.95).aspx

  内容。

public bool IsEditable
{
get { return (bool)GetValue(IsEditableProperty); }
set { SetValue(IsEditableProperty, value); }
}
public static readonly DependencyProperty IsEditableProperty =
DependencyProperty.Register(
"IsEditable",
typeof(bool),
typeof(User_Node),
new PropertyMetadata(true));

public bool IsInEditMode
{
get
{
if (IsEditable)
return (bool)GetValue(IsInEditModeProperty);
else
return false;
}
set
{
if (IsEditable)
{
if (value) oldText = Text;
SetValue(IsInEditModeProperty, value);
}
}
}
public static readonly DependencyProperty IsInEditModeProperty =
DependencyProperty.Register(
"IsInEditMode",
typeof(bool),
typeof(User_Node),
new PropertyMetadata(false));

public string TextFormat
{
get { return (string)GetValue(TextFormatProperty); }
set
{
if (value == "") value = "{0}";
SetValue(TextFormatProperty, value);
}
}
public static readonly DependencyProperty TextFormatProperty =
DependencyProperty.Register(
"TextFormat",
typeof(string),
typeof(User_Node),
new PropertyMetadata("{0}"));


---------------------------在修改时响应事件的写法-------------------------------

public string Text
{
get { return (string)GetValue(TextProperty); }
set { SetValue(TextProperty, value); }
}
public static readonly DependencyProperty TextProperty =
DependencyProperty.Register(
"Text",
typeof(string),
typeof(User_Node),
new PropertyMetadata("", OnChanged));
private static void OnChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
string a = "";
}

本文来自来打工的的博客,原文地址:http://blog.sina.com.cn/s/blog_3f0612650100r0bs.html