Binding a RichTextBox to a slider control in C #

Question

I have the following XAML code that I want to execute in xaml.cs.

<RichTextBox.LayoutTransform>
    <ScaleTransform ScaleX="{Binding ElementName=mySlider, Path=Value}"
                    ScaleY="{Binding ElementName=mySlider, Path=Value}"/>
</RichTextBox.LayoutTransform>

It basically binds the slider to the richtextbox and does the scaling.

Below I tried to do the following:

RichTextBox newtext = new RichTextBox();
ScaleTransform mytran = new ScaleTransform();
mytran.ScaleX = mySlider.Value;
mytran.ScaleY = mySlider.Value;
newtext.LayoutTransform = mytran;

Answer 1

The following code behind is equivalent to Haml

//<RichTextBox.LayoutTransform>
//    <ScaleTransform ScaleX="{Binding ElementName=mySlider, Path=Value}"
//                    ScaleY="{Binding ElementName=mySlider, Path=Value}"/>
//</RichTextBox.LayoutTransform>

ScaleTransform scaleTransform = new ScaleTransform();
Binding scaleXBinding = new Binding("Value");
scaleXBinding.Source = mySlider;
Binding scaleYBinding = new Binding("Value");
scaleYBinding.Source = mySlider;
BindingOperations.SetBinding(scaleTransform,
                             ScaleTransform.ScaleXProperty,
                             scaleXBinding);
BindingOperations.SetBinding(scaleTransform,
                             ScaleTransform.ScaleYProperty,
                             scaleYBinding);

RichTextBox newText = new RichTextBox();
newText.LayoutTransform = scaleTransform;

Answer 2

Not sure what you are asking how to bind in the code, or how to set the properties ScaleXand ScaleYin the code (for example, without reference). If so, here is how you do it:

First enter your name ScaleTransform, for example. " myScaleTransform":

<RichTextBox.LayoutTransform>
   <ScaleTransform x:Name="myScaleTransform" ScaleX="1" ScaleY="1" />
</RichTextBox.LayoutTransform>

ValueChanged mySlider. ScaleX ScaleY myScaleTransform:

public void mySlider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
    myScaleTransform.ScaleX = mySlider.Value;
    myScaleTransform.ScaleY = mySlider.Value;
}

, .

Answer 3

, - . -

Binding scaleBinding = new Binding("Value"){ElementName="mySlider"};
BindingOperations.SetBinding(mytran, ScaleTransform.ScaleXProperty, scaleBinding);
BindingOperations.SetBinding(mytran, ScaleTransform.ScaleYProperty, scaleBinding);