How to achieve the number of lines in a WPF TextBox?

In WPF, you can determine the number of lines in a TextBox by retrieving the LineCount property of the TextBox’s Text attribute. An example is shown below:

int lineCount = textBox.LineCount;

Additionally, you can also calculate the number of lines by splitting the text string, as shown below:

string text = textBox.Text;
int lineCount = text.Split('\n').Length;

Please note that different representations of line breaks, such as ‘\n’, ‘\r’, and ‘\r\n’, should be considered when calculating the number of lines.