checkbox+textbox

Question

一个checkbox：cbA，另一个：cbB,和一个textbox:txtTest
当选中cbA时：txtTest.Text+="cbA:"+"A";取消选择cbB时:去掉选中时的值
cbB一样，取消选中去掉值怎么做哦，各位帮忙决绝下

Answer 1

        private void cbA_CheckedChanged(object sender, EventArgs e)
        {
            if(cbA.Checked)
            {
                //
            }
            else
            {
                //
            }
        }

Answer 2

     private void cbA_CheckedChanged(object sender, EventArgs e)
        {
            if(cbA.Checked)
            {
               txtTest.Text+="cbA:"+"A";
            }
            else
            {
               txtTest.Text+="cbA:"+"A";//???
                  txtTest.Text ="";//???            }
        }

Answer 3

private void cbA_CheckedChanged(object sender, EventArgs e)
        {
            txtTest.Text+=cbA.Checked?"":"";
        }
Replace替换

Answer 4

 private void cbA_CheckedChanged(object sender, EventArgs e)
        {
            if(cbA.Checked)
            {
               txtTest.Text+="cbA:"+"A";
            }
            else
            {
               txtTest.Text+="cbA:"+"A";//???
                  txtTest.Text ="";//???            }
        }

Answer 5

这样不行。一取消选中的话就给清空了，还有个cbB呢

Answer 6

这样不是和IF ELSE一个样么？