WPF Richtextbox调整大小性能

Question

I have a richtextbox with a flowdocument like this:

var mcFlowDoc = new FlowDocument();
var para = new Paragraph();
para.Inlines.Add(textBlock1);
para.Inlines.Add(textBlock2);
para.Inlines.Add(textBlock3);
mcFlowDoc.Blocks.Add(para);
richTextBox1.Document = mcFlowDoc;

When I resize the window, there is a small delay in rendering, especially when the number of textblocks is larger (30+) and there is always some flicker.

Is there a way to make resizing faster and smoother?

Answer 1

In our WPF code, we ran into problems when we started using RichTextBox intensively. Not specifically render problems, mostly excessive memory use.

The solution I adopted may also help you: We rendered the document without RichTextBox . You can convert the context of a RichTextBox to readonly WPF TextBlock .

When the user selects the control, we replace the TextBlock with a RichTextBox with the same content.

We wrapped the above behavior in a custom control. There is also some tweaking involved to get the TextBlock to render identical to RichTextBox (mostly margin/padding).