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Validate ComboBox via Javascript

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ComboBox

This is a migrated thread and some comments may be shown as answers.

Craig Hinkel asked on 19 Jan 2009, 07:18 PM

Hello,

I am trying to validate a valid item is typed into one of my combo's with load on demand enabled and I am having a hard time with the javascript. I want to re-use a function for multiple combobox's.

    
                    function ValidateComboUser(source, args)    
        
                    {            
        
                        var combo = $find(source.ControlToValidate.ClientID);   
        
                        args.IsValid = ValidateCombo(combo);  
        
                    }            
        
                    function ValidateCombo(combo)  
        
                    {  
        
                       var isValid = false;    
        
                       var text = combo.get_text();    
        
                       var item = combo.findItemByText(text);    
        
                       if (item)    
        
                       {    
        
                           isValid = true;    
        
                       }   
        
                       return isValid;  
        
                    }  

            Can someone please help me with a way to get the combo box being validated through the function params?

            Thanks

4 Answers, 1 is accepted

answered on 20 Jan 2009, 07:32 AM

Hello Craig,

Try the following client-side function to validate the RadComboBoxItem.

JavaScript:

    
            function ValidateComboUser(source, args)     
        
            { 
        
                var combo = $find(document.getElementById(source.id).getAttribute("controltovalidate"));  
        
                args.IsValid = ValidateCombo(combo); 
        
            } 
        
            function ValidateCombo(combo) 
        
            {   
        
               var isValid = false;     
        
               var text = combo.get_text();     
        
               var item = combo.findItemByText(text);  
        
               if (item)     
        
               {     
        
                   isValid = true;     
        
               }      
        
               return isValid;   
        
            }

Thanks,
Shinu.