数据绑定在C＃和.NET [英] Databinding in C# and .NET

问题描述

我是pretty的新C＃和.NET，我strugling一点与数据绑定的整个概念。我所要求的是概念的快速纲要，甚至更好，指向我对网上（preferred）或打印，可以帮助我让我的头周围的想法的来源。

I am pretty new to C# and .NET and I'm strugling a little with the whole concept of databinding. What I am asking for is a quick rundown of the concept, or even better, point me towards sources on the net (preferred) or in print that can help me get my head around the idea.

编辑：

我做我在VS2008的发展，我们正在使用的WinForms

I do my development in vs2008 and we are using winforms

推荐答案

好了，你使用的是什么架构？的WinForms？ asp.net？ WPF？

Well, what architecture are you using? winforms? asp.net? wpf?

在高级的是，如果你有对象，如：

The high level is that if you have objects such as:

public class Person {
    public string Name {get;set;}
    public DateTime DateOfBirth {get;set;}
}

然后你就可以得到约束力的框架来完成所有的辛勤工作，你刚才说你想要绑定 - 例如（的WinForms）：

Then you can get the binding framework to do all the hard work, and you just say what you want bound - for example (winforms):

txtName.DataBindings.Add("Text", person, "Name");

这将根据人的姓名文本框的Text属性，并且可以更新人的名称，当用户改变文本。

This sets the textbox's Text property based on the person's Name, and can update the person's Name when the user changes the text.

多记录结合是比较复杂的，并且是基于的IList 中的WinForms / WPF和 IEunmerable 的ASP.NET;这可以让你多个记录绑定（例如为一个网格）。如果列表中提供了额外的功能（排序，通过 IBindingList的， IBindingListView 过滤等等，等等），那么更多的功能。比如是可用的。

Multi-record binding is more complex, and is based on IList in winforms/wpf, and IEunmerable in ASP.NET; this allows you to bind multiple records (for example into a grid). If the list offers extra features (sorting, filtering etc, via IBindingList, IBindingListView, etc), then more functionality might be available.

绑定也允许观察员的用法 - 即变更通知：如果你间接地改变人的名称，那么文本框就会自动更新。这依赖于事件 - 无论是形式公共事件的EventHandler NameChanged;通过，或（更常见了）的 INotifyPropertyChanged的事件（允许一个事件，以通知的多个属性）。

Binding also allows "observer" usage - i.e. change notification: if you indirectly change the person's Name, then the textbox gets automatically updated. This relies on events - either of the form public event EventHandler NameChanged;, or (more commonly now) via the INotifyPropertyChanged event (allowing one event to notify for multiple properties).

某些列表（如的BindingList＆LT; T＆GT; ，数据视图）。也有类似的通知循环

Some lists (such as BindingList<T>, DataView) have similar notification loops.

这篇关于数据绑定在C＃和.NET的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！