If you are getting Method Error 500 or 12031 In Ajax CascadingDropdown, than you may have missed to include below mentioned line of code in code behind of your asmx (webservice) file
Add this line in webservice's code behind
[System.Web.Script.Services.ScriptService()]
It should look like this
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService()]
public class CascadingDropDown : System.Web.Services.WebService {
It should look like this
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService()]
public class CascadingDropDown : System.Web.Services.WebService {
It should fix the error
This also occurs if there is any error in your sql statements or webservice code, you need to check them as well
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11 comments:
Thanks!!
OMG thanks a lot!
Thanks you only solved my problem
method error 500 in ajax cascading dropdown i use
[System.Web.Script.Services.ScriptService()]
also i got that error
thanks... @Satish
That was easy, thank you!
Method error 500 still persist..Please help
Still that error is there Method Error 500 Pls help...
tnk!!!
Thanks it's working
still got method 500
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