Check box with Validations on c#?

My Exact Need is
   i ve a check box
      fruits,
       vegetables.
  if i m choose fruits then ll display apple,orange,like the same  also vegetables.
   if i never choosed chek box ll through an error how to it???




 
Thanks & Regards

A.Rama Krishnan
  

Create Checked Change event and set autopostback property=True;

Hello Friend,
                 You could simply place all your controls inside a panel whose visibility will be by default set to false. and then you can fire onCheckChanged event of your checkboxes within that you'll check whether the checkbox is checked or not. If it is checked then set the panel visibility to true or else display a message box.

For instance.

bool checked=CheckBox1.Checked;
        if(checked)
        {        
                Panel1.Visible=true;
        }
        else
        {
                MessageBox.Show("Kindly Check the checkbox");
        }

Hope it helps you.

hey Rama krishnan the requirements is not brief..but still try this if ur using windows forms


make the datagrid(in which you want to display the data or contents) to be collapsed during loadevent and use a condition checkbox.ischecked =true then make the datagrid to be visible

load event is the mainfunction when your formgets loaded if its a windws form application