Dropdownlist with special characters

[Tony WONG]

One of the value of dropdownlist has a special chinese character (HK
suplementary character set)

i can see that special chinese character in the dropdownlist of the asp.net
form (UTF-8)

however, the gridview (bind to the dropdownlist) cannot be filtered by only
that selected item.

in my very old asp page (Big5), it can be filtered by asp page querystring

i tried to add to change character set from UTF-8 to big5
<globalization
requestEncoding="big5"
responseEncoding="big5"
fileEncoding="big5"/>

it still fails. Grateful for any help?

thanks a lot.

 

[Tony WONG]

finally, i hard code the selectcommand.

 

[Tony WONG]

finally i find that the error is due to few spaces after the text "ABCD "