I feel like a total idiot. Thank you for catching it.
>You haven't instantiated an instance of MyDerivedClass (MyDerivedClass m_DerivedClass = new MyDerivedClass();)
>>Hi,
>>
>>I am having a problem that I will try to present here is a simplified manner:
>>
>>
>>public class MyBaseClass
>>{
>> public DataSet myDataSet;
>>
>> public void MyMethod( string cStr )
>> {
>> // do something with the string cStr
>> }
>>}
>>
>>public class MyDerivedClass : MyBaseClass
>>{
>> // Nothing is this class, so far
>> }
>>
>>public partial class frmMyForm : Form
>>{
>> private string cStr
>> public MyDefirvedClass m_DerivedClass;
>>
>> public frmMyForm()
>> {
>> InitializeComponent();
>> m_DerivedClass.MyMethod( cStr ); // !!! This where I get error Null Reference
>> }
>>
>>}
>>>>
>>Note that the when I type m_DerivedClass in the frmMyForm constructor the intellisense shows the methods (MyMethod among them) of the class MyBaseClass so I know that I have declared "using" correctly. Why do I get the Null Reference on call MyMethod() then?
>>
>>TIA
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
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