问题描述
将属性绑定到控件的最佳方法是什么,以便在更改属性值时,控件的绑定属性也随之更改.
What is the best way to bind a property to a control so that when the property value is changed, the control's bound property changes with it.
因此,如果我有一个属性 FirstName
,我想将其绑定到文本框的 txtFirstName
文本值.因此,如果我将 FirstName
更改为值Stack",那么属性 txtFirstName.Text
也会更改为值Stack".
So if I have a property FirstName
which I want to bind to a textbox's txtFirstName
text value. So if I change FirstName
to value "Stack" then the property txtFirstName.Text
also changes to value "Stack".
我知道这可能听起来很愚蠢,但我会感谢您的帮助.
I know this may sound a stupid question but I'll appreciate the help.
推荐答案
你必须实现 INotifyPropertyChanged
并添加绑定到文本框.
You must implement INotifyPropertyChanged
And add binding to textbox.
我将提供 C# 代码片段.希望有帮助
I will provide C# code snippet. Hope it helps
class Sample : INotifyPropertyChanged
{
private string firstName;
public string FirstName
{
get { return firstName; }
set
{
firstName = value;
InvokePropertyChanged(new PropertyChangedEventArgs("FirstName"));
}
}
#region Implementation of INotifyPropertyChanged
public event PropertyChangedEventHandler PropertyChanged;
public void InvokePropertyChanged(PropertyChangedEventArgs e)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null) handler(this, e);
}
#endregion
}
用法:
Sample sourceObject = new Sample();
textbox.DataBindings.Add("Text",sourceObject,"FirstName");
sourceObject.FirstName = "Stack";
这篇关于将属性绑定到 Winforms 中的控件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!