C#遍历得到checkboxlist选中值和设置选中项的代码

public string GetChecked(CheckBoxList checkList,string separator)
{
string str = "";
for (int i = 0; i < checkList.Items.Count; i++)
{
if (checkList.Items[i].Selected)
{
str += checkList.Items[i].Value + separator;
}
}
return str;
}

public void SetChecked(CheckBoxList checkList,string selval,string separator)
{
selval = separator + selval + separator; //例如："0,1,2,1"->","
for (int i = 0; i < checkList.Items.Count; i++)
{
checkList.Items[i].Selected = false;
string val = separator + checkList.Items[i].Value + separator;
if (selval.IndexOf(val) != -1)
{
checkList.Items[i].Selected = true;
selval = selval.Replace(val,separator); //然后从原来的值串中删除已经选中了的
if (selval == separator) //selval的最后一项也被选中的话，此时经过Replace后，只会剩下一个分隔符
{
selval += separator; //添加一个分隔符
}
}
}
}