∙ Source属性：绑定到的数据源
∙ Mode属性：绑定的模式（OneTime、OneWay、TwoWay、OneWayToSource或Default）
∙ Path属性：绑定到的数据源的属性
∙ Converter属性：绑定时所使用的类型转换器
在绑定目标控件上使用SetBinding方法添加数据绑定。例如将MyData的Name属性绑定到txtName控件的Text属性上，使用MyColorConverter转换器将MyBindingColor的ColorObject属性绑定到rec控件的Fill属性上：
1: MyData data = new MyData();
2:
3: Binding binding1 = new Binding();
4: binding1.Source = data;
5: binding1.Mode = BindingMode.OneWay;
6: binding1.Path = new PropertyPath("Name");
7:
8: txtName.SetBinding(TextBox.TextProperty, binding1);
9:
10:
11: MyBindingColor color = new MyBindingColor();
12:
13: Binding binding2 = new Binding();
14: binding2.Source = color;
15: binding2.Mode = BindingMode.OneWay;
16: binding2.Path = new PropertyPath("ColorObject");
17: binding2.Converter = new MyColorConverter();
18:
19: rec.SetBinding(Rectangle.FillProperty, binding2);
二、实现绑定数据的验证：
对于绑定数据的验证，系统采用如下的机制：
使用 WPF 数据绑定模型可以将 ValidationRules 与 Binding 对象相关联。当绑定目标的属性向绑定源属性传递属性值时（仅限TwoWay模式或OneWayToSource模式），执行ValidationRule中的Validate方法，实现对界面输入数据的验证。
定义验证可以采用以下三种：
∙ DataErrorValidationRule：检查由源对象的 IDataErrorInfo 实现所引发的错误，要求数据源对象实现System.ComponentModel命名空间的IDataErrorInfo接口。
例如，定义一个学生信息类，要求其学生成绩在0到100间，学生姓名的长度在2到10个字符间：
1: public class StudentInfoWithValidation : IDataErrorInfo
2: {
3: #region 构造方法
4: public StudentInfoWithValidation()
5: {
6: StudentName = "Tom";
7: Score = 90;
8: }
9: public StudentInfoWithValidation(string m_StudentName,double m_Score)
10: {
11: StudentName = m_StudentName;
12:梦见丈夫有外遇 Score = m_Score;
13: }
14: #endregion
15:
16: #region 属性
17: public string StudentName
18: {
19: get; set;
20: }
21: public double Score
22: {
23: get; set;
24: }
25: #endregion
26:
27: #region 实现IDataErrorInfo接口的成员
28: public string Error
29: {
30: get
31: {
32: return null;
33: }
34: }
35:
36: public string this[string columnName]
37: {
38: get
39: {
40: string result = null;
41:
42: switch (columnName)
43: {
44: case "StudentName":
45: // 设置StudentName属性的验证规则
46: int len = StudentName.Length;
47: if (len < 2 || len > 10)
48: {
49: result = "StudentName length must between 2 and 10";
50: }
51: break;
52: case "Score":
53: // 设置Score属性的验证规则
54: if (Score < 0 || Score > 100)
55: {
56: result = "Score must between 0 and 100";
57: }
58: break;
59: }
60:
61: return result;
62: }
63: }
64: #endregion
65: }
在界面上，定义两个TextBox绑定到StudentName和Score两个属性上，并设置其采用DataErrorValidationRule：
1: <Window x:Class="WPFDataBindingDemo.WinDataErrorValidationRuleDemo"
2: xmlns="schemas.microsoft/winfx/2006/xaml/presentation"
3: xmlns:x="schemas.microsoft/winfx/2006/xaml"
4: xmlns:local="clr-namespace:WPFDataBindingDemo"
5: Title="WinDataErrorValidationRuleDemo" Height="154" Width="300">
6: <Canvas Height="116" x:Name="mainCanvas">
7: <Canvas.Resources>
8: <local:StudentInfoWithValidation x:Key="myData" />
9: </Canvas.Resources>
10: <Canvas.DataContext>
11: <Binding Source="{StaticResource myData}" />
12: </Canvas.DataContext>
13: <Label Canvas.Left="10" Canvas.Top="10" Height="28" Name="label1" Width="120">StudentName:</Label>
14: <Label Canvas.Left="10" Canvas.Top="36" Height="28" Name="label2" Width="120">Score:</Label>
15: <TextBox Canvas.Left="136" Canvas.Top="12" Height="23" Name="textBox1" Width="120">
16: <TextBox.Text>
17: <Binding Path="StudentName"
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