1,窗体加载的时候:
this.rtx_abnormalData.ScrollBars = RichTextBoxScrollBars.None; this.rtx_abnormalData.MouseWheel += Rtx_abnormalData_MouseWheel; //this.rtx_abnormalData.ContentsResized += Rtx_abnormalData_ContentsResized;
2,事件代码:
//private void Rtx_abnormalData_ContentsResized(object sender, ContentsResizedEventArgs e) //{ // rtx_abnormalData.Height = e.NewRectangle.Height + 10; //} private void Rtx_abnormalData_MouseWheel(object sender, MouseEventArgs e) { if (e.Delta > 0) { if (rtx_abnormalData.SelectionStart > 10) { rtx_abnormalData.SelectionStart -= 10; rtx_abnormalData.ScrollToCaret(); } } else { rtx_abnormalData.SelectionStart += 10; rtx_abnormalData.ScrollToCaret(); } }