private void SetBinding()
{
ConvertModels convert = new ConvertModels();
ObjectDataProvider odp = new ObjectDataProvider();
ValidRule rule = new ValidRule();
odp.ObjectInstance = cal;
odp.MethodName = "Add";
odp.MethodParameters.Add(0); //由参数自动选择使用的是哪个重载函数
odp.MethodParameters.Add(0);
Binding bind = new Binding("MethodParameters[0]")
{
Source = odp, BindsDirectlyToSource = true, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged, Converter = convert
};
bind.ValidationRules.Add(rule);
bind.NotifyOnValidationError = true;
Binding bind1 = new Binding("MethodParameters[1]")
{
Source = odp, BindsDirectlyToSource = true, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged, Converter = convert
};
//bind1.ValidationRules.Add(rule);
bind1.NotifyOnValidationError = true;
Binding bind2 = new Binding(".")
{
Source = odp
};
TextBox1.SetBinding(TextBox.TextProperty, bind); //BindsDirectlyToSource指示绑定的方向
TextBox2.SetBinding(TextBox.TextProperty, bind1);
TextBox3.SetBinding(TextBox.TextProperty, bind2);
//1、ObjcetDataProvider的MethodParameter不是依赖属性，不能作为Binding的目标。
//2、数据驱动UI理念要求我们尽可能的使用数据对象作为Binding的Source而把UI当做Binding的Target。
//捕捉校验事件
Grid1.AddHandler(Validation.ErrorEvent, new RoutedEventHandler((o, args) => {
//Validation.GetErrors(o as FrameworkElement);
if (Validation.GetErrors(TextBox1).Count > 0)
{
Console.WriteLine("Sender: " + (args.OriginalSource as FrameworkElement).Name + " Error: " + Validation.GetErrors(TextBox1)[0].ErrorContent);
}
if (Validation.GetErrors(TextBox2).Count > 0)
{
Console.WriteLine("Sender: " + (args.OriginalSource as FrameworkElement).Name + " Error: " + Validation.GetErrors(TextBox2)[0].ErrorContent);
}
}));
}