Trying to get ID from Selected Checkboxes on page

[wadey]

Hi,

Scenario:-

I have a web page with a listing of items. besides each item is a checkbox. At the top of the page is a delete button. User selects his items to delete and presses delete button.

Problem:-

My codebehind should cycle through each control on page, if its a checkbox and its checked get the ID of the checkbox.
However it doesn't work.

Code:-

private void isCheckedAndAdd(Control ctrl)
{



if (ctrl is CheckBox && ((CheckBox)ctrl).Checked)
{

///Do your stuff with a checked Checkbox.
string sAccomodationId = ctrl.ID.ToString();

}

foreach (Control c in ctrl.Controls)
{

isCheckedAndAdd(c);

}

}


protected void Delete_OnClick(object sender, EventArgs e)
{
isCheckedAndAdd(this);

}


Questions:-

1. Is this the best way to do this?
2. Any ideas why this doesn't work?

Regards

 

[jmeckley]

if you have a list of checkboxes use a checkboxklist and bind the value/text to the control, then cycle through the list items in that control

//page load
if(!ispostback)
{
  mycheckboxlist.DataSource = GetOptions();
  mycheckboxlist.DataBind();
}

//on button click
foreach(ListItem item in mycheckboxlist.Items)
{
   if(item.Selected)
   {
      DeleteRecordBy(item.Value);
   }
}

if you want to stick with your current setup, then you need to make the function recrusive

void ProcessCheckBox(Control control)
{
   CheckBox cb = control as CheckBox;
   if(cb != null)
   {
       if(cb.Checked)
         DeleteRecordBy(item.Value);
       return;
   }
   foreach(Control child in control.Controls)
   {
      ProcessCheckBox(child);
   }
}

//click event
ProcessCheckBox(this);

Jason Meckley
Programmer
Specialty Bakers, Inc.