Hi, in the Dynamically Create Annotations demo, the method on how annotations are created is by (for example a line):
1) First Click on the annotation button
2) Click on the SciChart Surface. This creates the first point of a line
3) Click again on the end point of the line.
Instead of having to do two clicks, is there a way to click and drag instead? eg.
1) First Click on the annotation button
2) Click on the SciChart Surface. This creates the first point of a line
3) drag to the end point of the line.
I just want to mimic Microsoft power point behaviour as our users are more familiar with it.
Thanks
- Azrin Sani asked 9 years ago
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This is useful, our users also complained about the nonstandard two click process to add annotations. However using this modification causes a crash upon adding HorizontalLineAnnotation and VerticalLineAnnotation, and TextAnnotation does not work either. As these annotations work fine with 1 click, there is an easy workaround for this of course:
public class CustomAnnotationCreationModifier : AnnotationCreationModifier
{
public override void OnModifierMouseDown(ModifierMouseArgs e)
{
if (AnnotationType != typeof (TextAnnotation)
&& AnnotationType != typeof (HorizontalLineAnnotation)
&& AnnotationType != typeof (VerticalLineAnnotation))
{
OnModifierMouseUp(e);
}
}
}
- [email protected] answered 9 years ago
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Hi Azrin,
Thanks for writing to us. To achive desired behavior please try to create custom AnnotationCreationModifier with next code:
public class CustomAnnotationCreationModifier : AnnotationCreationModifier
{
public override void OnModifierMouseDown(ModifierMouseArgs e)
{
OnModifierMouseUp(e);
}
}
By default AnnotationCreationModifier uses only mouse up event. When first mouse up occurs – modifier creates and places annotation, on second mouse up – annotation is fully created and AnnotationCreated event fires. With provided code – annotation is created when mouse down occurs and AnnotationCreated event is raised on mouse up event.
Is this approach suitable for you? Hope it helps!
- Yura Khariton answered 9 years ago
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@Click test I have an MS Project with a form that is a button, I want to click and drag from the All Forms window and drag it up to the toolbar. How can you click on an item and then drag and drop?
- julie diane answered 2 years ago
- last edited 2 years ago
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