[RESOLVED] Modal is closing used Update Panel.

I have a update panel which including 3 dropdownlist. and those dropdown items can change depend on first dropdown. and also I have modal popup independent these dropdownlists.

but when I click the button and open modal the page does postback and modal was closing quickly how can I get rid of this issues. and below this my code.

       
            

                

                    

                        

                            
                       
                        

                            //S0me Code

                        
                    
                
            
          
            
            
                
                    

                        

                            
xxx
                        
                        

                            


                                

                                    Marka
                                    
                                
                                

                                    Model
                                    
                                
                                

                                    Caroser
                                    
                                

                            
                        
                    
                    

                        

                        
                        

                            
xxxx
                            

                                
                                    
                                    TL
                                
                            
                        
                        

                            
xxx
                        
                        

                          

                                
                                
                            
                           
                        
                    
                    
                   
                
                
                    
                    
                
            

 

T-Law

but when I click the button and open modal the page does postback and modal was closing quickly how can I get rid of this issues.

You can stop the postback from button by adding return false like given below

  <%--Prevent the page postback using return false--%>
      

I am grateful to you A2H Master :)

Glad to be of help :)