[英]Animating the translation of a programmatically created xaml object
Initially I did it directly on nInput and everything worked.最初我是直接在 nInput 上做的,一切正常。 Then I tried to move it to a cloned object (cloneInputForAnimation) but I get this error:
然后我尝试将它移动到一个克隆对象(cloneInputForAnimation),但我收到此错误:
System.InvalidOperationException: The name 'TextBoxAnim' could not be found in the namespace of 'System.Windows.Controls.TextBox'
System.InvalidOperationException: 在“System.Windows.Controls.TextBox”的命名空间中找不到名称“TextBoxAnim”
XAML: XAML:
<TextBox x:Name="nInput" MaxLength="17" PreviewTextInput="numberValidationTextBox" Grid.Column="0"
Height="80" Width="240"
Foreground="White" Background="#202020"
HorizontalAlignment="Left" BorderThickness="0"
HorizontalContentAlignment="Center" VerticalContentAlignment="Center"
FontSize="25">
<TextBox.RenderTransform>
<TranslateTransform x:Name="TextBoxAnim" />
</TextBox.RenderTransform>
<TextBox.Resources>
<Storyboard x:Key="myStoryboardY" x:Name="myStoryboardY">
<DoubleAnimation
Storyboard.TargetName="TextBoxAnim"
x:Name="myDoubleAnimationY"
Storyboard.TargetProperty="Y"
Duration="0:0:0.8"
/>
</Storyboard>
<Storyboard x:Key="myStoryboardX" x:Name="myStoryboardX">
<DoubleAnimation
Storyboard.TargetName="TextBoxAnim"
x:Name="myDoubleAnimationX"
Storyboard.TargetProperty="X"
Duration="0:0:0.8"
/>
</Storyboard>
<Storyboard x:Key="myStoryboardWidth" x:Name="myStoryboardWidth">
<DoubleAnimation
Storyboard.TargetName="nInput"
x:Name="myDoubleAnimationWidth"
Storyboard.TargetProperty="(TextBox.Width)"
Duration="0:0:0.8"
/>
</Storyboard>
<Storyboard x:Key="myStoryboardHeight" x:Name="myStoryboardHeight">
<DoubleAnimation
Storyboard.TargetName="nInput"
x:Name="myDoubleAnimationHeight"
Storyboard.TargetProperty="(TextBox.Height)"
Duration="0:0:0.8"
/>
</Storyboard>
</TextBox.Resources>
</TextBox>
C#: C#:
//I clone the input box to perform the animation
TextBox cloneInputForAnimation = CloneXaml(nInput);
UserInteraction.Children.Add(cloneInputForAnimation);
//Removing text from the realInput
nInput.Text = "";
//nInput.IsEnabled = false;
//Creating a new object which is the one that will remain after the animation
TextBox targetInput = CloneXaml(cloneInputForAnimation);
targetInput.Visibility = Visibility.Hidden;
targetInput.Width = Double.NaN;
targetInput.Height = 50;
nList.Children.Add(targetInput);
//Obtaining the destination point
Point targetPosition = targetInput.TransformToAncestor(rootView).Transform(new Point(0, 0));
//Obtaining the current point
Point currentPos = cloneInputForAnimation.TransformToAncestor(rootView).Transform(new Point(0, 0));
//Calculating the translation to do to reach targetPosition
Vector translateToDo = targetPosition - currentPos;
//Obtaining storyboard and anim for x, y, width, height of cloneInputForAnimation (I can't use x:Name because is an element created programmatically)
Storyboard myStoryY = cloneInputForAnimation.Resources["myStoryboardY"] as Storyboard;
Storyboard myStoryX = cloneInputForAnimation.Resources["myStoryboardX"] as Storyboard;
Storyboard myStoryHeight = cloneInputForAnimation.Resources["myStoryboardHeight"] as Storyboard;
Storyboard myStoryWidth = cloneInputForAnimation.Resources["myStoryboardWidth"] as Storyboard;
DoubleAnimation myAnimY = myStoryY.Children[0] as DoubleAnimation;
DoubleAnimation myAnimX = myStoryX.Children[0] as DoubleAnimation;
DoubleAnimation myAnimHeight = myStoryHeight.Children[0] as DoubleAnimation;
DoubleAnimation myAnimWidth = myStoryWidth.Children[0] as DoubleAnimation;
myAnimY.To = translateToDo.Y;
myAnimX.To = translateToDo.X;
myAnimHeight.To = targetInput.ActualHeight;
myAnimWidth.To = targetInput.ActualWidth;
cloneInputForAnimation.BeginStoryboard(myStoryY);
cloneInputForAnimation.BeginStoryboard(myStoryX);
cloneInputForAnimation.BeginStoryboard(myStoryHeight);
cloneInputForAnimation.BeginStoryboard(myStoryWidth);
C# CloneXaml: C# CloneXaml:
public static T CloneXaml<T>(T source)
{
string xaml = XamlWriter.Save(source);
StringReader sr = new StringReader(xaml);
XmlReader xr = XmlReader.Create(sr);
return (T)XamlReader.Load(xr);
}
Sorry but these are my first steps with WPF so the code will probably have a lot of problems.抱歉,这些是我使用 WPF 的第一步,因此代码可能会有很多问题。
Okay, as I imagined I was using a completely wrong approach.好吧,正如我想象的那样,我使用了一种完全错误的方法。 This is the working version I have arrived at.
这是我到达的工作版本。 XAML:
XAML:
<TextBox x:Name="nInput" MaxLength="17" PreviewTextInput="numberValidationTextBox" Grid.Column="0"
Height="80" Width="240"
Foreground="White" Background="#202020"
HorizontalAlignment="Left" BorderThickness="0"
HorizontalContentAlignment="Center" VerticalContentAlignment="Center"
FontSize="25">
<TextBox.Resources>
<Style TargetType="{x:Type Border}">
<Setter Property="CornerRadius" Value="12" />
</Style>
</TextBox.Resources>
</TextBox>
C#: C#:
Duration animDuration = new Duration(new TimeSpan(0, 0 ,0, 0,800));
//I clone the input box to perform the animation
TextBox cloneInputForAnimation = CloneXaml(nInput);
UserInteraction.Children.Add(cloneInputForAnimation);
//Removing text from the realInput
nInput.Text = "";
//nInput.IsEnabled = false;
//Creating a new object wich is the one that will remain after the animation
TextBox targetInput = CloneXaml(cloneInputForAnimation);
targetInput.Visibility = Visibility.Hidden;
targetInput.Width = double.NaN;
targetInput.Height = 50;
nList.Children.Add(targetInput);
//Obtaining the destination point
Point targetPosition = targetInput.TransformToAncestor(rootView).Transform(new Point(0, 0));
//Obtaining the current point
Point currentPos = cloneInputForAnimation.TransformToAncestor(rootView).Transform(new Point(0, 0));
//Calculating the translation to do to reach targetPosition
Vector translateToDo = targetPosition - currentPos;
TranslateTransform myTranslateTransform = new TranslateTransform();
cloneInputForAnimation.RenderTransform = myTranslateTransform;
DoubleAnimation myAnimX = new DoubleAnimation {
Duration = animDuration,
To = translateToDo.X
};
DoubleAnimation myAnimY = new DoubleAnimation {
Duration = animDuration,
To = translateToDo.Y
};
DoubleAnimation myAnimHeight = new DoubleAnimation {
Duration = animDuration,
To = 50,
};
DoubleAnimation myAnimWidth = new DoubleAnimation {
Duration = animDuration,
To = 50,
};
myTranslateTransform.BeginAnimation(TranslateTransform.YProperty, myAnimY);
myTranslateTransform.BeginAnimation(TranslateTransform.XProperty, myAnimX);
cloneInputForAnimation.BeginAnimation(TextBox.WidthProperty, myAnimWidth);
cloneInputForAnimation.BeginAnimation(TextBox.HeightProperty, myAnimHeight);
C# CloneXaml has not been modified C# CloneXaml 未修改
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