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我實現了一個自定義控件,我需要執行一些綁定。自定義控件WPF綁定到父元素
public class SomeControl : Control
{
internal static DependencyProperty AProperty;
internal static DependencyProperty BProperty;
internal static DependencyProperty CProperty;
static AnimationControl()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(AnimationControl), new FrameworkPropertyMetadata(typeof(AnimationControl)));
AProperty = DependencyProperty.Register("A", typeof(double), typeof(SomeControl));
BProperty = DependencyProperty.Register("B", typeof(Boolean), typeof(SomeControl));
CProperty = DependencyProperty.Register("C", typeof(String), typeof(SomeControl));
}
public double A
{
get { return (double)this.GetValue(AProperty); }
set { SetValue(AProperty, value); }
}
public Boolean B
{
get { return (Boolean)this.GetValue(BProperty); }
set { SetValue(BProperty, value); }
}
public String C
{
get { return (String)this.GetValue(CProperty); }
set { SetValue(CProperty, value); }
}
}
MainWindow.xaml:
<TextBox TextChanged="speedsBoxChanged" Name="speedsBox" Text="1, 2, 3, 4, 5" Grid.Row="0" Grid.Column="2" Margin="2" />
<Slider Name="slider" Grid.Row="0" Grid.Column="3" Margin="2" Minimum="20" Maximum="750" />
<local:AnimationControl
A="{Binding A}"
B="{Binding B}"
C="{Binding C}" />
<CheckBox Name="versionCheckBox" Click="VersionChanged" IsChecked="False" VerticalAlignment="Center"/>
MainWindow.cs:
public event PropertyChangedEventHandler PropertyChanged;
public double A
{
get { return lri.Speed; }
set
{
lri.Speed = value;
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs("A"));
}
}
}
public string C
{
get { return speedsBox.Text; }
set
{
speedsBox.Text = value;
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs("B"));
}
}
}
public Boolean B
{
get { return (Boolean)versionCheckBox.IsChecked; }
set
{
versionCheckBox.IsChecked = (Boolean)value;
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs("C"));
}
}
}
但沒有什麼工作,爲什麼?我一直在試圖弄清楚這一點,但仍然沒有。基本上,我想更新滑塊值更改動畫速度(lri.Speed),從文本框更新C屬性並從複選框更新B.
在SomeControl B中是布爾值,C是字符串,在MainWindow.cs中B是字符串,C是布爾值。也許你應該給你的變量更有意義的名字。 – LPL
事實上,這是正確的,我改變了purpase的變量名稱,對於錯誤感到抱歉。這不是問題,但:( – user208030