Webform does not now work when convert from #C language to VB

The count property is correct, but now you mention it, i cannot get a return value from the AppendFormat ? which is needed for following code. It returns undefined all the time? 

Hi, have you checked if is .lenght instead of .count ?

 

JS.AppendFormat("var divWidth = {0};\n", _Items.Length * (_ImageWidth + 1)) 

I did get it to convert eventually by changing syntax code later with double quotes. When operating it worked as planned only when i amended page to include own elements like labels and a Div it would not work?

 

I think it is because the  width is larger now since i added  labels inside a div container so the javascript calculation divWidth is incorrect. Before Datalist only contained a Image which was same size for all items so the row size easily calculated using formula _Items.Count * (_ImageWidth + 1). 

How do you  change the javascript code to calculate the total row size of Datalist now that i have a lable inside a div whos text value is of different length?