Question

i have a page where i create 2 checkboxes dynamically.

 TableRow tr = new TableRow();
                    for (int i = 0; i < 2; i++)
                    {
                        TableCell Tc = new TableCell();


                            Tc.Attributes["style"] = "line-height: 30px; text-align: left";
                            Tc.Attributes["width"] = "50%";
                            Tc.Style.Add("padding-left", "5px");
                            //Checkboxes on left along with labels
                            CheckBox checkBoxCtrl = new CheckBox();
                            checkBoxCtrl.ID = "checkBoxCtrl" + i;
                            Tc.Controls.Add(checkBoxCtrl); 
                            tr.Cells.Add(Tc);                           
                    }

once they are created in the page load event i have a Ok_button click event which requires to check if the checkbox is checked or not.

 protected void Update2_Click(object sender, EventArgs e)
        {


         if(checkBoxCtrl.checked)
          //here i wont be able to get the value 
          // i get the error the name checkBoxCtrl does not exist..
          {
             response.write("true");
           }

        }

but how do i do the check in this case.

thanks

Answer:

this is what needs to be done to get the checkbox values

 protected void Update1_Click(object sender, EventArgs e)
    {
        for(int i = 0; i < ControlPropList.Count; i++)
        {              
            CheckBox chkTest = (CheckBox)xxx.FindControl("checkBoxCtrl" + i);
            {
                if (chkTest.Checked)
                {
                    Global.logger.Info("Checkbox True = " + chkTest.ID);
                }
                else
                {
                    Global.logger.Info("Checkbox False = " + chkTest.ID);
                }
            }
        }
    }

Answer 1

This should work fine as long as you add the checkboxes to your page in the Page_PreInit method. If you add them after that (Page_Load for example), their values will not be maintained.

Read about the asp.net page lifecycle here:

http://msdn.microsoft.com/en-us/library/ms178472.aspx