please help in databound webform
<p>i am new to asp.net and i am developing an inventory system.</p>

<p>i have used a databinding feature of .net , and i am inserting ,editing and deleting via built-in links of</p>

<p>databound controls.</p>

<p>question is, i want to check before e.g insertion some critaria first in my database and than wana decide whether to</p>

<p>save the new data in database or not, now i dont know how to call my custome method for checking some critaria ,before the insertion (e.g) of the new data.</p>
