我正在动态生成复选框,所有这些都写在 page_load 中,当我尝试检查它显示错误的复选框时,
错误行:
CheckBox cb = (CheckBox)Page.FindControl("chk" + j);
错误:找到具有相同 ID '1' 的多个控件。FindControl 要求控件具有唯一的 ID
我的要求是:
如果我选中复选框,我想计算选中的复选框数量,并且单选按钮将出现相对选中的复选框。
下面是代码:
string strfromdt = Session["leavefrm"].ToString();
DateTime startDate = Convert.ToDateTime(strfromdt);
string strtodt = Session["leaveto"].ToString();
DateTime endDate = Convert.ToDateTime(strtodt);
string strdays = Session["noofdays"].ToString();
float daysf = float.Parse(strdays);
float days = (float)Math.Ceiling(daysf);
CheckBox chk;
Label lbl;
RadioButton rd;
days++;
OleDbCommand cmd;
DbConnection.Open();
cmd = new OleDbCommand("select HOL_DATE from IND_HOLIDAYS", DbConnection);
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
for (int j = 1; j <= days - 1; j++)
{
while(startDate <= endDate)
{
for (int i = 0; i <= dt.Rows.Count - 1; i++)
{
string strdate = dt.Rows[i]["HOL_DATE"].ToString();
DateTime date = Convert.ToDateTime(strdate);
if (startDate == date)
startDate = startDate.AddDays(1);
}
if ((startDate.DayOfWeek == DayOfWeek.Saturday) || ((startDate.DayOfWeek == DayOfWeek.Sunday)))
{
startDate = startDate.AddDays(1);
continue;
}
break;
}
chk = new CheckBox();
chk.ID = j.ToString();
chk.AutoPostBack = true;
// chk.Checked = true;
lbl = new Label();
lbl.Text = startDate.ToString("dd/MM/yyyy");
lbl.ID = j.ToString();
PlaceHolder1.Controls.Add(lbl);
PlaceHolder1.Controls.Add(chk);
PlaceHolder1.Controls.Add(new RadioButton { });
PlaceHolder1.Controls.Add(new LiteralControl("<BR>"));
startDate = startDate.AddDays(1);
CheckBox cb = (CheckBox)Page.FindControl("chk" + j);
//chk.Checked = CheckBox1Checked;
//chk.oncheckedchanged += CheckBox1OnChecked;
int chkcount = 0;
if (chk.Checked)
{
chkcount++;
}
int chkcount1 = chkcount;
}