Dynamic Data Display - WPF - Need to add text to canvas - C#

Question

I am using the dynamic data display WPF chart. I have a requirement to display a label next to every point on the curves plotted on the chart. The exact functionality is as follows: Every curve has a an object that holds its data and a description that inculdes color, marker shape etc. It also tell me whether the labels must be visible for that particular curve. There is also an option using a checkbox to hide/show the labels for all points on all the curves on the plot. There is a third option where a user can left click on the marker and see a label next to it. Now, I previously implemented it by adding labels along with the ElementMarkerPointGraph for each point and setting the visibility of the labels. I know there is a massive performance hit with this approach. I am now looking to create a solution where I can render text directly to the canvas at a location that I provide. I also need help with the removing the text from the canvas. Is there a way of adding text natively to the…

Accepted Answer

I'm not sure whether this will give you the zooming purpose but the code below can be used to add text inside a canvas..I got it from a site while googling.

```
private void Text(double x, double y, string text, Color color) 
{
    TextBlock textBlock = new TextBlock();
    textBlock.Text = text;
    textBlock.Foreground = new SolidColorBrush(color);
    Canvas.SetLeft(textBlock, x);
    Canvas.SetTop(textBlock, y);
    canvasObj.Children.Add(textBlock);
}
```

Dynamic Data Display - WPF - Need to add text to canvas - C#

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