Basic queries about Form Development

Question

Hello Friends
i am bascially a web programmer and have done little bit VB programming and have idea of event driven programming.I have to help my younger cousin in his project assignment and i have no idea about few things which i think normal in all event driven programming.My Quries are as follows:
1)Retrieve values from text,comboBox
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i create a form by using dataBlock wizard and it automaitcally creaed all text fields on form with dataBlock Name.
now i am writing a ButtonPRess trigger code and i want to retrieve textbox value by using following code
Declare
mytext varchar2(39)
BEGIN
mytext:=myFormBlock.textField
END;
but i am keep getting error identified myFormBlock.textField is not declared.How the hell do i retrieve the data?
2)Display data in ComboBox and manually create insert query on BUtton's press event.
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is it possible that i manually create INSERT query in which i retrieve value from form's controls and execute it, rather calling create_Record method of form
kindly help me,i will be very grateful to you.

Answer 1

Thanks now i am encountering another issue.I am getting following error
FRM:40508:Unable to Insert Record
i have following table structure:
Name Null? Type
FACULTY_ID NOT NULL NUMBER(5)
FACULTY_NAME NOT NULL VARCHAR2(40)
and writing following code to insert record and execute query
INSERT INTO FACULTY ( FACULTY_ID,FACULTY_NAME ) VALUES (100,:BLK_FACULTY.FACULTY_NAME);                
commit
and it is keep giving the error.One thnig i would like to tell that i ran Datablock Wizard and i didnt select Primary Field ,Faculty_id in that wizard for DISPLAY purpose yes i did select for data binding but not for display purpose because I want to send my sequence Id as Id entry.
Where am I going wrong?
Thanks