I have a entry form..It has three dropdownlist,lots of textboxes.when user select three dropdown then if the record already exists then it will displayed in the textboxes otherwise blank..I used javascript validation on textboxes and dropdownlists...But it works on dropdownlist and doesnt work on textboxes.it gives alert if textbox is blank but then save the blank textbox in database.

Means it fires onclick event of submit button after giving alert on the textbox is blank..it doesnt stop to enter the data.....please help me..

You should doing your validation on the onSubmit event of the form, I reckon

Thanx for reply..But I did this on OnClientClick event of the submit button.

Please help me..it dont do validation on onsubmit of the form..please