如何從富文本框

Question

我只想在字符串形式顯示的文本從富文本框獲得純文本的顯示部分

我發現通過

Point pos = new Point(0, 0); 
int firstIndex = this.GetCharIndexFromPosition(pos); 
int firstLine = this.GetLineFromCharIndex(firstIndex); 

//now we get index of last visible char and number of last visible line 
pos.X = ClientRectangle.Width; 
pos.Y = ClientRectangle.Height; 
int lastIndex = this.GetCharIndexFromPosition(pos); 
int lastLine = this.GetLineFromCharIndex(lastIndex); 

//this is point position of last visible char, 
//we'll use its Y value for calculating numberLabel size 
pos = this.GetPositionFromCharIndex(lastIndex); 

初始行號和最後一個行號怎麼可以獲得過濾rtb文本，並只獲取文本的顯示部分？

Answer 1

我相信你只是使用（boxname）.Text屬性。和（boxname）.RTF如果你想RTF格式。所以在你的例子中：

string text = this.Text;