将代码隐藏变量绑定到主窗口中的文本框中的文本 [英] Binding code-behind variable to text in textbox in main window

问题描述

这是主窗口中文本框的xaml代码：

我在文本框中输入的文本绑定到代码后面的变量。 / p>

 < TextBox x：Name =Rotate1Text ={Binding ElementName = this，Path = testvalue}/> 
  

在主窗口中的代码中：

  private int testvalue {get;设置;} 
  

我知道如果是另一种方式，我将不得不更新源触发器在任何改变，但不知道当变化到任何输入的文本时该怎么办。

解决方案

试用代码：

  public partial class MainWindow：Window 
 {
 public DependencyProperty TestValueProperty = DependencyProperty.Register（testvalue，typeof（int），typeof（MainWindow））; 
 public int testvalue 
 {
 get {return（int）GetValue（TestValueProperty）; } 
 set 
 {
 SetValue（TestValueProperty，value）; 
} 
} 
 public MainWindow（）
 {
 InitializeComponent（）; 
 testvalue = 6; 
} 
} 
  

在XAML

 < Window x：Class =WpfApplication1.MainWindow
x：Name =thisForm
 xmlns =http：// schemas。 microsoft.com/winfx/2006/xaml/presentation
 xmlns：x =http://schemas.microsoft.com/winfx/2006/xaml> 
< TextBox Text ={Binding ElementName = thisForm，Path = testvalue}/> 
< / Window> 
  

UPD：哦！当然！在CS和XAML代码中删除标签

I'm having issues binding text entered in a textbox to a variable in code behind.

Here's the xaml code for the textbox located in the main window:

<TextBox x:Name="Rotate1" Text="{Binding ElementName=this, Path=testvalue}" />

and in the code behind in main window:

private int testvalue { get; set;}

I know if it's the other way around I would have to update the source trigger on any change, but not sure what to do when it's changing variable to whatever the entered text is.

解决方案

try in code:

public partial class MainWindow : Window
{
  public DependencyProperty TestValueProperty = DependencyProperty.Register("testvalue", typeof(int), typeof(MainWindow));
  public int testvalue
  {
    get { return (int)GetValue(TestValueProperty); }
    set
    {
      SetValue(TestValueProperty, value);
    }
  }
  public MainWindow()
  {
    InitializeComponent();
    testvalue = 6;
  }
}

in XAML

<Window x:Class="WpfApplication1.MainWindow"
    x:Name="thisForm"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <TextBox Text="{Binding ElementName=thisForm, Path=testvalue}" />
</Window>

UPD: oh! of course! Remove Tag in CS and XAML code

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