asp.net - Is there a max limit a autocomplete extender can have? -


i have an autocomplete extender on page searches database based on last name. reason when searching "smith" should return 1564 results nothing being returned? when search other names works fine "jones" etc. thinking "smith" has rows , there limit or something? ideas?

 <asp:textbox id="doctornametextbox" runat="server" height="24px" width="739px"              font-size="small"></asp:textbox>         <asp:autocompleteextender id="autocompleteextender" runat="server"      delimitercharacters="" enabled="true" servicepath="autocomplete.asmx"              servicemethod="getcompletionlist" targetcontrolid="doctornametextbox"      minimumprefixlength="2" usecontextkey="true" contextkey="statedropdown"             completionlistelementid="autocompletedropdownpanel"              onclientitemselected="getselected" completionsetcount="20"              showonlycurrentwordincompletionlistitem="true">  public function getcompletionlist(prefixtext string, count integer, byval contextkey string) string()     try         dim con sqlconnection         dim cmd sqlcommand         con = new sqlconnection         dim test string         test = contextkey         con.connectionstring = ""         con.open()          cmd = new sqlcommand         cmd.connection = con         cmd.commandtext = "select npi, [entity type code], [provider last name (legal name)], [provider first name],[provider first line business mailing address], [provider business mailing address city name], [provider business mailing address state name], [provider business mailing address postal code] npidata   ([provider business mailing address state name] = @state) , ([provider last name (legal name)] n'%' + @provider + n'%') order [provider first name]"         cmd.parameters.addwithvalue("@provider", prefixtext)         cmd.parameters.addwithvalue("@state", contextkey)         dim customers list(of string) = new list(of string)         dim reader sqldatareader = cmd.executereader()           while reader.read             customers.add(reader("provider last name (legal name)").tostring + ", " + reader("provider first name").tostring + "   " + reader("provider first line business mailing address").tostring + "  " + reader("provider business mailing address city name").tostring + ", " + reader("provider business mailing address state name").tostring + "  " + reader("provider business mailing address postal code").tostring + "  " + reader("npi").tostring)          end while           con.close()          return customers.toarray     catch ex exception         msgbox(ex.tostring)     end try  end function

when list returned web service exceeds max jsonserialization limit of 102400 (string length), autocompleteextender fails silently. way "fix" (although not practical) increase value in web.config so:

make sure have section in sectiongroup section. if don't, add it.

<sectiongroup name="system.web.extensions" type="system.web.extensions">     <sectiongroup name="scripting" type="system.web.extensions">          <sectiongroup name="webservices" type="system.web.extensions">                   <section name="jsonserialization" type="system.web.extensions"/>           </sectiongroup>     </sectiongroup> </sectiongroup>

and set value:

<configuration>     <system.web.extensions>        <scripting>            <webservices>                <jsonserialization maxjsonlength="50000000"/>            </webservices>        </scripting>    </system.web.extensions> </configuration>

see other answer.


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